diff --git a/README.md b/README.md
index d535631..b5022c9 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,8 @@
 [![Join the chat at https://gitter.im/acme-sh/Lobby](https://badges.gitter.im/acme-sh/Lobby.svg)](https://gitter.im/acme-sh/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 - An ACME protocol client written purely in Shell (Unix shell) language.
 - Full ACME protocol implementation.
+- Support ACME v1 and ACME v2
+- Support ACME v2 wildcard certs
 - Simple, powerful and very easy to use. You only need 3 minutes to learn it.
 - Bash, dash and sh compatible.
 - Simplest shell script for Let's Encrypt free certificate client.
@@ -127,7 +129,7 @@ Ok, you are ready to issue certs now.
 
 Show help message:
 
-```
+```sh
 root@v1:~# acme.sh -h
 ```
 
@@ -164,16 +166,16 @@ You must have at least one domain there.
 
 You must point and bind all the domains to the same webroot dir: `/home/wwwroot/example.com`.
 
-Generated/issued certs will be placed in `~/.acme.sh/example.com/`
+The certs will be placed in `~/.acme.sh/example.com/`
 
-The issued cert will be renewed automatically every **60** days.
+The certs will be renewed automatically every **60** days.
 
 More examples: https://github.com/Neilpang/acme.sh/wiki/How-to-issue-a-cert
 
 
-# 3. Install the issued cert to Apache/Nginx etc.
+# 3. Install the cert to Apache/Nginx etc.
 
-After you issue a cert, you probably want to install/copy the cert to your Apache/Nginx or other servers.
+After the cert is generated, you probably want to install/copy the cert to your Apache/Nginx or other servers.
 You **MUST** use this command to copy the certs to the target files, **DO NOT** use the certs files in **~/.acme.sh/** folder, they are for internal use only, the folder structure may change in the future.
 
 **Apache** example:
@@ -195,9 +197,9 @@ acme.sh --install-cert -d example.com \
 
 Only the domain is required, all the other parameters are optional.
 
-The ownership and permission info of existing files are preserved. You may want to precreate the files to have defined ownership and permission.
+The ownership and permission info of existing files are preserved. You can pre-create the files to define the ownership and permission.
 
-Install/copy the issued cert/key to the production Apache or Nginx path.
+Install/copy the cert/key to the production Apache or Nginx path.
 
 The cert will be renewed every **60** days by default (which is configurable). Once the cert is renewed, the Apache/Nginx service will be reloaded automatically by the command: `service apache2 force-reload` or `service nginx force-reload`.
 
@@ -240,7 +242,7 @@ Particularly, if you are running an Apache server, you should use Apache mode in
 
 Just set string "apache" as the second argument and it will force use of apache plugin automatically.
 
-```
+```sh
 acme.sh --issue --apache -d example.com -d www.example.com -d cp.example.com
 ```
 
@@ -260,47 +262,13 @@ It will configure nginx server automatically to verify the domain and then resto
 
 So, the config is not changed.
 
-```
+```sh
 acme.sh --issue --nginx -d example.com -d www.example.com -d cp.example.com
 ```
 
 More examples: https://github.com/Neilpang/acme.sh/wiki/How-to-issue-a-cert
 
-# 8. Use DNS mode:
-
-Support the `dns-01` challenge.
-
-```bash
-acme.sh --issue --dns -d example.com -d www.example.com -d cp.example.com
-```
-
-You should get an output like below:
-
-```
-Add the following txt record:
-Domain:_acme-challenge.example.com
-Txt value:9ihDbjYfTExAYeDs4DBUeuTo18KBzwvTEjUnSwd32-c
-
-Add the following txt record:
-Domain:_acme-challenge.www.example.com
-Txt value:9ihDbjxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-
-Please add those txt records to the domains. Waiting for the dns to take effect.
-```
-
-Then just rerun with `renew` argument:
-
-```bash
-acme.sh --renew -d example.com
-```
-
-Ok, it's finished.
-
-**Take care, this is dns manual mode, it can not be renewed automatically. you will have to add a new txt record to your domain by your hand when you renew your cert.**
-
-**Please use dns api mode instead.**
-
-# 9. Automatic DNS API integration
+# 8. Automatic DNS API integration
 
 If your DNS provider supports API access, we can use that API to automatically issue the certs.
 
@@ -343,8 +311,10 @@ You don't have to do anything manually!
 1. INWX (https://www.inwx.de/)
 1. Servercow (https://servercow.de)
 1. Namesilo (https://www.namesilo.com)
+1. InternetX autoDNS API (https://internetx.com)
+1. Azure DNS
+1. selectel.com(selectel.ru) DNS API
 1. DNSEver(https://www.dnsever.com)
-
 And: 
 
 1. lexicon DNS API: https://github.com/Neilpang/acme.sh/wiki/How-to-use-lexicon-dns-api
@@ -358,6 +328,39 @@ If your DNS provider is not on the supported list above, you can write your own
 
 For more details: [How to use DNS API](dnsapi)
 
+# 9. Use DNS manual mode:
+
+If your dns provider doesn't support any api access, you will have to add the txt record by your hand.
+
+```bash
+acme.sh --issue --dns -d example.com -d www.example.com -d cp.example.com
+```
+
+You should get an output like below:
+
+```sh
+Add the following txt record:
+Domain:_acme-challenge.example.com
+Txt value:9ihDbjYfTExAYeDs4DBUeuTo18KBzwvTEjUnSwd32-c
+
+Add the following txt record:
+Domain:_acme-challenge.www.example.com
+Txt value:9ihDbjxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+
+Please add those txt records to the domains. Waiting for the dns to take effect.
+```
+
+Then just rerun with `renew` argument:
+
+```bash
+acme.sh --renew -d example.com
+```
+
+Ok, it's done.
+
+**Take care, this is dns manual mode, it can not be renewed automatically. you will have to add a new txt record to your domain by your hand when you renew your cert.**
+
+**Please use dns api mode instead.**
 
 # 10. Issue ECC certificates
 
@@ -390,36 +393,60 @@ Valid values are:
 3. **ec-521 (secp521r1,  "ECDSA P-521", which is not supported by Let's Encrypt yet.)**
 
 
-# 11. How to renew the issued certs
+
+# 11. Issue Wildcard certificates
+
+It's simple, just give a wildcard domain as the `-d` parameter.
+
+```sh
+acme.sh  --issue -d example.com  -d *.example.com  --dns dns_cf
+```
+
+
+
+# 12. How to renew the certs
 
 No, you don't need to renew the certs manually. All the certs will be renewed automatically every **60** days.
 
-However, you can also force to renew any cert:
+However, you can also force to renew a cert:
 
-```
+```sh
 acme.sh --renew -d example.com --force
 ```
 
 or, for ECC cert:
 
-```
+```sh
 acme.sh --renew -d example.com --force --ecc
 ```
 
 
-# 12. How to upgrade `acme.sh`
+# 13. How to stop cert renewal
+
+To stop renewal of a cert, you can execute the following to remove the cert from the renewal list:
+
+```sh
+acme.sh --remove -d example.com [--ecc]
+```
+
+The cert/key file is not removed from the disk.
+
+You can remove the respective directory (e.g. `~/.acme.sh/example.com`) by yourself.
+
+
+# 14. How to upgrade `acme.sh`
 
 acme.sh is in constant development, so it's strongly recommended to use the latest code.
 
 You can update acme.sh to the latest code:
 
-```
+```sh
 acme.sh --upgrade
 ```
 
 You can also enable auto upgrade:
 
-```
+```sh
 acme.sh --upgrade --auto-upgrade
 ```
 
@@ -427,31 +454,30 @@ Then **acme.sh** will be kept up to date automatically.
 
 Disable auto upgrade:
 
-```
+```sh
 acme.sh --upgrade --auto-upgrade 0
 ```
 
 
-# 13. Issue a cert from an existing CSR
+# 15. Issue a cert from an existing CSR
 
 https://github.com/Neilpang/acme.sh/wiki/Issue-a-cert-from-existing-CSR
 
 
-# 14. Under the Hood
+# 16. Under the Hood
 
 Speak ACME language using shell, directly to "Let's Encrypt".
 
 TODO:
 
 
-# 15. Acknowledgments
+# 17. Acknowledgments
 
 1. Acme-tiny: https://github.com/diafygi/acme-tiny
 2. ACME protocol: https://github.com/ietf-wg-acme/acme
-3. Certbot: https://github.com/certbot/certbot
 
 
-# 16. License & Others
+# 18. License & Others
 
 License is GPLv3
 
@@ -460,7 +486,7 @@ Please Star and Fork me.
 [Issues](https://github.com/Neilpang/acme.sh/issues) and [pull requests](https://github.com/Neilpang/acme.sh/pulls) are welcome.
 
 
-# 17. Donate
+# 19. Donate
 Your donation makes **acme.sh** better:
 
 1. PayPal/Alipay(支付宝)/Wechat(微信): [https://donate.acme.sh/](https://donate.acme.sh/)
diff --git a/acme.sh b/acme.sh
index 472975a..a21b24e 100755
--- a/acme.sh
+++ b/acme.sh
@@ -13,8 +13,14 @@ _SCRIPT_="$0"
 
 _SUB_FOLDERS="dnsapi deploy"
 
-_OLD_CA_HOST="https://acme-v01.api.letsencrypt.org"
-DEFAULT_CA="https://acme-v01.api.letsencrypt.org/directory"
+LETSENCRYPT_CA_V1="https://acme-v01.api.letsencrypt.org/directory"
+LETSENCRYPT_STAGING_CA_V1="https://acme-staging.api.letsencrypt.org/directory"
+
+LETSENCRYPT_CA_V2="https://acme-v02.api.letsencrypt.org/directory"
+LETSENCRYPT_STAGING_CA_V2="https://acme-staging-v02.api.letsencrypt.org/directory"
+
+DEFAULT_CA=$LETSENCRYPT_CA_V1
+DEFAULT_STAGING_CA=$LETSENCRYPT_STAGING_CA_V1
 
 DEFAULT_USER_AGENT="$PROJECT_NAME/$VER ($PROJECT)"
 DEFAULT_ACCOUNT_EMAIL=""
@@ -24,13 +30,13 @@ DEFAULT_DOMAIN_KEY_LENGTH=2048
 
 DEFAULT_OPENSSL_BIN="openssl"
 
-STAGE_CA="https://acme-staging.api.letsencrypt.org/directory"
+_OLD_CA_HOST="https://acme-v01.api.letsencrypt.org"
 _OLD_STAGE_CA_HOST="https://acme-staging.api.letsencrypt.org"
 
 VTYPE_HTTP="http-01"
 VTYPE_DNS="dns-01"
 VTYPE_TLS="tls-sni-01"
-#VTYPE_TLS2="tls-sni-02"
+VTYPE_TLS2="tls-sni-02"
 
 LOCAL_ANY_ADDRESS="0.0.0.0"
 
@@ -991,7 +997,7 @@ _createkey() {
 _is_idn() {
   _is_idn_d="$1"
   _debug2 _is_idn_d "$_is_idn_d"
-  _idn_temp=$(printf "%s" "$_is_idn_d" | tr -d '0-9' | tr -d 'a-z' | tr -d 'A-Z' | tr -d '.,-')
+  _idn_temp=$(printf "%s" "$_is_idn_d" | tr -d '0-9' | tr -d 'a-z' | tr -d 'A-Z' | tr -d '*.,-')
   _debug2 _idn_temp "$_idn_temp"
   [ "$_idn_temp" ]
 }
@@ -1044,13 +1050,14 @@ _createcsr() {
   if [ -z "$domainlist" ] || [ "$domainlist" = "$NO_VALUE" ]; then
     #single domain
     _info "Single domain" "$domain"
+    printf -- "\nsubjectAltName=DNS:$domain" >>"$csrconf"
   else
     domainlist="$(_idn "$domainlist")"
     _debug2 domainlist "$domainlist"
     if _contains "$domainlist" ","; then
-      alt="DNS:$(echo "$domainlist" | sed "s/,/,DNS:/g")"
+      alt="DNS:$domain,DNS:$(echo "$domainlist" | sed "s/,,/,/g" | sed "s/,/,DNS:/g")"
     else
-      alt="DNS:$domainlist"
+      alt="DNS:$domain,DNS:$domainlist"
     fi
     #multi
     _info "Multi domain" "$alt"
@@ -1421,7 +1428,7 @@ _calcjwk() {
 
     JWK_HEADER='{"alg": "RS256", "jwk": '$jwk'}'
     JWK_HEADERPLACE_PART1='{"nonce": "'
-    JWK_HEADERPLACE_PART2='", "alg": "RS256", "jwk": '$jwk'}'
+    JWK_HEADERPLACE_PART2='", "alg": "RS256"'
   elif grep "BEGIN EC PRIVATE KEY" "$keyfile" >/dev/null 2>&1; then
     _debug "EC key"
     crv="$(${ACME_OPENSSL_BIN:-openssl} ec -in "$keyfile" -noout -text 2>/dev/null | grep "^NIST CURVE:" | cut -d ":" -f 2 | tr -d " \r\n")"
@@ -1490,7 +1497,7 @@ _calcjwk() {
 
     JWK_HEADER='{"alg": "ES'$__ECC_KEY_LEN'", "jwk": '$jwk'}'
     JWK_HEADERPLACE_PART1='{"nonce": "'
-    JWK_HEADERPLACE_PART2='", "alg": "ES'$__ECC_KEY_LEN'", "jwk": '$jwk'}'
+    JWK_HEADERPLACE_PART2='", "alg": "ES'$__ECC_KEY_LEN'"'
   else
     _err "Only RSA or EC key is supported."
     return 1
@@ -1580,7 +1587,7 @@ _inithttp() {
 # body  url [needbase64] [POST|PUT]
 _post() {
   body="$1"
-  url="$2"
+  _post_url="$2"
   needbase64="$3"
   httpmethod="$4"
 
@@ -1588,7 +1595,7 @@ _post() {
     httpmethod="POST"
   fi
   _debug $httpmethod
-  _debug "url" "$url"
+  _debug "_post_url" "$_post_url"
   _debug2 "body" "$body"
 
   _inithttp
@@ -1600,9 +1607,9 @@ _post() {
     fi
     _debug "_CURL" "$_CURL"
     if [ "$needbase64" ]; then
-      response="$($_CURL --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" --data "$body" "$url" | _base64)"
+      response="$($_CURL --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" --data "$body" "$_post_url" | _base64)"
     else
-      response="$($_CURL --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" --data "$body" "$url")"
+      response="$($_CURL --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" --data "$body" "$_post_url")"
     fi
     _ret="$?"
     if [ "$_ret" != "0" ]; then
@@ -1620,15 +1627,15 @@ _post() {
     _debug "_WGET" "$_WGET"
     if [ "$needbase64" ]; then
       if [ "$httpmethod" = "POST" ]; then
-        response="$($_WGET -S -O - --user-agent="$USER_AGENT" --header "$_H5" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1" --post-data="$body" "$url" 2>"$HTTP_HEADER" | _base64)"
+        response="$($_WGET -S -O - --user-agent="$USER_AGENT" --header "$_H5" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1" --post-data="$body" "$_post_url" 2>"$HTTP_HEADER" | _base64)"
       else
-        response="$($_WGET -S -O - --user-agent="$USER_AGENT" --header "$_H5" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1" --method $httpmethod --body-data="$body" "$url" 2>"$HTTP_HEADER" | _base64)"
+        response="$($_WGET -S -O - --user-agent="$USER_AGENT" --header "$_H5" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1" --method $httpmethod --body-data="$body" "$_post_url" 2>"$HTTP_HEADER" | _base64)"
       fi
     else
       if [ "$httpmethod" = "POST" ]; then
-        response="$($_WGET -S -O - --user-agent="$USER_AGENT" --header "$_H5" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1" --post-data="$body" "$url" 2>"$HTTP_HEADER")"
+        response="$($_WGET -S -O - --user-agent="$USER_AGENT" --header "$_H5" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1" --post-data="$body" "$_post_url" 2>"$HTTP_HEADER")"
       else
-        response="$($_WGET -S -O - --user-agent="$USER_AGENT" --header "$_H5" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1" --method $httpmethod --body-data="$body" "$url" 2>"$HTTP_HEADER")"
+        response="$($_WGET -S -O - --user-agent="$USER_AGENT" --header "$_H5" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1" --method $httpmethod --body-data="$body" "$_post_url" 2>"$HTTP_HEADER")"
       fi
     fi
     _ret="$?"
@@ -1656,7 +1663,7 @@ _get() {
   onlyheader="$2"
   t="$3"
   _debug url "$url"
-  _debug "timeout" "$t"
+  _debug "timeout=$t"
 
   _inithttp
 
@@ -1776,7 +1783,15 @@ _send_signed_request() {
     nonce="$_CACHED_NONCE"
     _debug2 nonce "$nonce"
 
-    protected="$JWK_HEADERPLACE_PART1$nonce\", \"url\": \"${url}$JWK_HEADERPLACE_PART2"
+    if [ "$ACME_VERSION" = "2" ]; then
+      if [ "$url" = "$ACME_NEW_ACCOUNT" ] || [ "$url" = "$ACME_REVOKE_CERT" ]; then
+        protected="$JWK_HEADERPLACE_PART1$nonce\", \"url\": \"${url}$JWK_HEADERPLACE_PART2, \"jwk\": $jwk"'}'
+      else
+        protected="$JWK_HEADERPLACE_PART1$nonce\", \"url\": \"${url}$JWK_HEADERPLACE_PART2, \"kid\": \"${ACCOUNT_URL}\""'}'
+      fi
+    else
+      protected="$JWK_HEADERPLACE_PART1$nonce\", \"url\": \"${url}$JWK_HEADERPLACE_PART2, \"jwk\": $jwk"'}'
+    fi
     _debug3 protected "$protected"
 
     protected64="$(printf "%s" "$protected" | _base64 | _url_replace)"
@@ -1791,7 +1806,11 @@ _send_signed_request() {
     sig="$(printf "%s" "$_sig_t" | _url_replace)"
     _debug3 sig "$sig"
 
-    body="{\"header\": $JWK_HEADER, \"protected\": \"$protected64\", \"payload\": \"$payload64\", \"signature\": \"$sig\"}"
+    if [ "$ACME_VERSION" = "2" ]; then
+      body="{\"protected\": \"$protected64\", \"payload\": \"$payload64\", \"signature\": \"$sig\"}"
+    else
+      body="{\"header\": $JWK_HEADER, \"protected\": \"$protected64\", \"payload\": \"$payload64\", \"signature\": \"$sig\"}"
+    fi
     _debug3 body "$body"
 
     response="$(_post "$body" "$url" "$needbase64")"
@@ -2170,9 +2189,15 @@ _initAPI() {
     _debug2 "response" "$response"
 
     ACME_KEY_CHANGE=$(echo "$response" | _egrep_o 'key-change" *: *"[^"]*"' | cut -d '"' -f 3)
+    if [ -z "$ACME_KEY_CHANGE" ]; then
+      ACME_KEY_CHANGE=$(echo "$response" | _egrep_o 'keyChange" *: *"[^"]*"' | cut -d '"' -f 3)
+    fi
     export ACME_KEY_CHANGE
 
     ACME_NEW_AUTHZ=$(echo "$response" | _egrep_o 'new-authz" *: *"[^"]*"' | cut -d '"' -f 3)
+    if [ -z "$ACME_NEW_AUTHZ" ]; then
+      ACME_NEW_AUTHZ=$(echo "$response" | _egrep_o 'newAuthz" *: *"[^"]*"' | cut -d '"' -f 3)
+    fi
     export ACME_NEW_AUTHZ
 
     ACME_NEW_ORDER=$(echo "$response" | _egrep_o 'new-cert" *: *"[^"]*"' | cut -d '"' -f 3)
@@ -2180,6 +2205,9 @@ _initAPI() {
     if [ -z "$ACME_NEW_ORDER" ]; then
       ACME_NEW_ORDER=$(echo "$response" | _egrep_o 'new-order" *: *"[^"]*"' | cut -d '"' -f 3)
       ACME_NEW_ORDER_RES="new-order"
+      if [ -z "$ACME_NEW_ORDER" ]; then
+        ACME_NEW_ORDER=$(echo "$response" | _egrep_o 'newOrder" *: *"[^"]*"' | cut -d '"' -f 3)
+      fi
     fi
     export ACME_NEW_ORDER
     export ACME_NEW_ORDER_RES
@@ -2189,17 +2217,32 @@ _initAPI() {
     if [ -z "$ACME_NEW_ACCOUNT" ]; then
       ACME_NEW_ACCOUNT=$(echo "$response" | _egrep_o 'new-account" *: *"[^"]*"' | cut -d '"' -f 3)
       ACME_NEW_ACCOUNT_RES="new-account"
+      if [ -z "$ACME_NEW_ACCOUNT" ]; then
+        ACME_NEW_ACCOUNT=$(echo "$response" | _egrep_o 'newAccount" *: *"[^"]*"' | cut -d '"' -f 3)
+        if [ "$ACME_NEW_ACCOUNT" ]; then
+          export ACME_VERSION=2
+        fi
+      fi
     fi
     export ACME_NEW_ACCOUNT
     export ACME_NEW_ACCOUNT_RES
 
     ACME_REVOKE_CERT=$(echo "$response" | _egrep_o 'revoke-cert" *: *"[^"]*"' | cut -d '"' -f 3)
+    if [ -z "$ACME_REVOKE_CERT" ]; then
+      ACME_REVOKE_CERT=$(echo "$response" | _egrep_o 'revokeCert" *: *"[^"]*"' | cut -d '"' -f 3)
+    fi
     export ACME_REVOKE_CERT
 
     ACME_NEW_NONCE=$(echo "$response" | _egrep_o 'new-nonce" *: *"[^"]*"' | cut -d '"' -f 3)
+    if [ -z "$ACME_NEW_NONCE" ]; then
+      ACME_NEW_NONCE=$(echo "$response" | _egrep_o 'newNonce" *: *"[^"]*"' | cut -d '"' -f 3)
+    fi
     export ACME_NEW_NONCE
 
     ACME_AGREEMENT=$(echo "$response" | _egrep_o 'terms-of-service" *: *"[^"]*"' | cut -d '"' -f 3)
+    if [ -z "$ACME_AGREEMENT" ]; then
+      ACME_AGREEMENT=$(echo "$response" | _egrep_o 'termsOfService" *: *"[^"]*"' | cut -d '"' -f 3)
+    fi
     export ACME_AGREEMENT
 
     _debug "ACME_KEY_CHANGE" "$ACME_KEY_CHANGE"
@@ -2208,12 +2251,16 @@ _initAPI() {
     _debug "ACME_NEW_ACCOUNT" "$ACME_NEW_ACCOUNT"
     _debug "ACME_REVOKE_CERT" "$ACME_REVOKE_CERT"
     _debug "ACME_AGREEMENT" "$ACME_AGREEMENT"
+    _debug "ACME_NEW_NONCE" "$ACME_NEW_NONCE"
+    _debug "ACME_VERSION" "$ACME_VERSION"
 
   fi
 }
 
 #[domain]  [keylength or isEcc flag]
 _initpath() {
+  domain="$1"
+  _ilength="$2"
 
   __initHome
 
@@ -2232,11 +2279,16 @@ _initpath() {
     CA_HOME="$DEFAULT_CA_HOME"
   fi
 
+  if [ "$ACME_VERSION" = "2" ]; then
+    DEFAULT_CA="$LETSENCRYPT_CA_V2"
+    DEFAULT_STAGING_CA="$LETSENCRYPT_STAGING_CA_V2"
+  fi
+
   if [ -z "$ACME_DIRECTORY" ]; then
     if [ -z "$STAGE" ]; then
       ACME_DIRECTORY="$DEFAULT_CA"
     else
-      ACME_DIRECTORY="$STAGE_CA"
+      ACME_DIRECTORY="$DEFAULT_STAGING_CA"
       _info "Using stage ACME_DIRECTORY: $ACME_DIRECTORY"
     fi
   fi
@@ -2296,13 +2348,10 @@ _initpath() {
     ACME_OPENSSL_BIN="$DEFAULT_OPENSSL_BIN"
   fi
 
-  if [ -z "$1" ]; then
+  if [ -z "$domain" ]; then
     return 0
   fi
 
-  domain="$1"
-  _ilength="$2"
-
   if [ -z "$DOMAIN_PATH" ]; then
     domainhome="$CERT_HOME/$domain"
     domainhomeecc="$CERT_HOME/$domain$ECC_SUFFIX"
@@ -2548,10 +2597,7 @@ _setNginx() {
   _d="$1"
   _croot="$2"
   _thumbpt="$3"
-  if ! _exists "nginx"; then
-    _err "nginx command is not found."
-    return 1
-  fi
+
   FOUND_REAL_NGINX_CONF=""
   FOUND_REAL_NGINX_CONF_LN=""
   BACKUP_NGINX_CONF=""
@@ -2561,6 +2607,10 @@ _setNginx() {
   if [ -z "$_start_f" ]; then
     _debug "find start conf from nginx command"
     if [ -z "$NGINX_CONF" ]; then
+      if ! _exists "nginx"; then
+        _err "nginx command is not found."
+        return 1
+      fi
       NGINX_CONF="$(nginx -V 2>&1 | _egrep_o "--conf-path=[^ ]* " | tr -d " ")"
       _debug NGINX_CONF "$NGINX_CONF"
       NGINX_CONF="$(echo "$NGINX_CONF" | cut -d = -f 2)"
@@ -2605,6 +2655,10 @@ _setNginx() {
     return 1
   fi
 
+  if ! _exists "nginx"; then
+    _err "nginx command is not found."
+    return 1
+  fi
   _info "Check the nginx conf before setting up."
   if ! _exec "nginx -t" >/dev/null; then
     _exec_err
@@ -2697,7 +2751,7 @@ _isRealNginxConf() {
     for _fln in $(tr "\t" ' ' <"$2" | grep -n "^ *server_name.* $1" | cut -d : -f 1); do
       _debug _fln "$_fln"
       if [ "$_fln" ]; then
-        _start=$(tr "\t" ' ' <"$2" | _head_n "$_fln" | grep -n "^ *server *{" | _tail_n 1)
+        _start=$(tr "\t" ' ' <"$2" | _head_n "$_fln" | grep -n "^ *server *" | grep -v server_name | _tail_n 1)
         _debug "_start" "$_start"
         _start_n=$(echo "$_start" | cut -d : -f 1)
         _start_nn=$(_math $_start_n + 1)
@@ -2706,8 +2760,8 @@ _isRealNginxConf() {
 
         _left="$(sed -n "${_start_nn},99999p" "$2")"
         _debug2 _left "$_left"
-        if echo "$_left" | tr "\t" ' ' | grep -n "^ *server *{" >/dev/null; then
-          _end=$(echo "$_left" | tr "\t" ' ' | grep -n "^ *server *{" | _head_n 1)
+        if echo "$_left" | tr "\t" ' ' | grep -n "^ *server *" >/dev/null; then
+          _end=$(echo "$_left" | tr "\t" ' ' | grep -n "^ *server *" | _head_n 1)
           _debug "_end" "$_end"
           _end_n=$(echo "$_end" | cut -d : -f 1)
           _debug "_end_n" "$_end_n"
@@ -2718,8 +2772,20 @@ _isRealNginxConf() {
 
         _debug "_seg_n" "$_seg_n"
 
-        if [ "$(echo "$_seg_n" | _egrep_o "^ *ssl  *on *;")" ] \
-          || [ "$(echo "$_seg_n" | _egrep_o "listen .* ssl[ |;]")" ]; then
+        _skip_ssl=1
+        for _listen_i in $(echo "$_seg_n" | tr "\t" ' ' | grep "^ *listen" | tr -d " "); do
+          if [ "$_listen_i" ]; then
+            if [ "$(echo "$_listen_i" | _egrep_o "listen.*ssl[ |;]")" ]; then
+              _debug2 "$_listen_i is ssl"
+            else
+              _debug2 "$_listen_i is plain text"
+              _skip_ssl=""
+              break
+            fi
+          fi
+        done
+
+        if [ "$_skip_ssl" = "1" ]; then
           _debug "ssl on, skip"
         else
           FOUND_REAL_NGINX_CONF_LN=$_fln
@@ -2818,7 +2884,11 @@ _clearupdns() {
         return 1
       fi
 
-      txtdomain="_acme-challenge.$d"
+      _dns_root_d="$d"
+      if _startswith "$_dns_root_d" "*."; then
+        _dns_root_d="$(echo "$_dns_root_d" | sed 's/*.//')"
+      fi
+      txtdomain="_acme-challenge.$_dns_root_d"
 
       if ! $rmcommand "$txtdomain" "$txt"; then
         _err "Error removing txt for domain:$txtdomain"
@@ -2951,6 +3021,7 @@ _on_issue_err() {
   _chk_post_hook="$1"
   _chk_vlist="$2"
   _debug _on_issue_err
+
   if [ "$LOG_FILE" ]; then
     _err "Please check log file for more details: $LOG_FILE"
   else
@@ -3052,6 +3123,8 @@ _regAccount() {
   _initpath
   _reg_length="$1"
   _debug3 _regAccount "$_regAccount"
+  _initAPI
+
   mkdir -p "$CA_DIR"
   if [ ! -f "$ACCOUNT_KEY_PATH" ] && [ -f "$_OLD_ACCOUNT_KEY" ]; then
     _info "mv $_OLD_ACCOUNT_KEY to $ACCOUNT_KEY_PATH"
@@ -3073,11 +3146,18 @@ _regAccount() {
   if ! _calcjwk "$ACCOUNT_KEY_PATH"; then
     return 1
   fi
-  _initAPI
-  _reg_res="$ACME_NEW_ACCOUNT_RES"
-  regjson='{"resource": "'$_reg_res'", "terms-of-service-agreed": true, "agreement": "'$ACME_AGREEMENT'"}'
-  if [ "$ACCOUNT_EMAIL" ]; then
-    regjson='{"resource": "'$_reg_res'", "contact": ["mailto: '$ACCOUNT_EMAIL'"], "terms-of-service-agreed": true, "agreement": "'$ACME_AGREEMENT'"}'
+
+  if [ "$ACME_VERSION" = "2" ]; then
+    regjson='{"termsOfServiceAgreed": true}'
+    if [ "$ACCOUNT_EMAIL" ]; then
+      regjson='{"contact": ["mailto: '$ACCOUNT_EMAIL'"], "termsOfServiceAgreed": true}'
+    fi
+  else
+    _reg_res="$ACME_NEW_ACCOUNT_RES"
+    regjson='{"resource": "'$_reg_res'", "terms-of-service-agreed": true, "agreement": "'$ACME_AGREEMENT'"}'
+    if [ "$ACCOUNT_EMAIL" ]; then
+      regjson='{"resource": "'$_reg_res'", "contact": ["mailto: '$ACCOUNT_EMAIL'"], "terms-of-service-agreed": true, "agreement": "'$ACME_AGREEMENT'"}'
+    fi
   fi
 
   _info "Registering account"
@@ -3090,7 +3170,7 @@ _regAccount() {
   if [ "$code" = "" ] || [ "$code" = '201' ]; then
     echo "$response" >"$ACCOUNT_JSON_PATH"
     _info "Registered"
-  elif [ "$code" = '409' ]; then
+  elif [ "$code" = '409' ] || [ "$code" = '200' ]; then
     _info "Already registered"
   else
     _err "Register account Error: $response"
@@ -3100,8 +3180,8 @@ _regAccount() {
   _accUri="$(echo "$responseHeaders" | grep "^Location:" | _head_n 1 | cut -d ' ' -f 2 | tr -d "\r\n")"
   _debug "_accUri" "$_accUri"
   _savecaconf "ACCOUNT_URL" "$_accUri"
+  export ACCOUNT_URL="$ACCOUNT_URL"
 
-  echo "$response" >"$ACCOUNT_JSON_PATH"
   CA_KEY_HASH="$(__calcAccountKeyHash)"
   _debug "Calc CA_KEY_HASH" "$CA_KEY_HASH"
   _savecaconf CA_KEY_HASH "$CA_KEY_HASH"
@@ -3113,7 +3193,6 @@ _regAccount() {
 
   ACCOUNT_THUMBPRINT="$(__calc_account_thumbprint)"
   _info "ACCOUNT_THUMBPRINT" "$ACCOUNT_THUMBPRINT"
-
 }
 
 #Implement deactivate account
@@ -3149,7 +3228,12 @@ deactivateaccount() {
   fi
   _initAPI
 
-  if _send_signed_request "$_accUri" "{\"resource\": \"reg\", \"status\":\"deactivated\"}" && _contains "$response" '"deactivated"'; then
+  if [ "$ACME_VERSION" = "2" ]; then
+    _djson="{\"status\":\"deactivated\"}"
+  else
+    _djson="{\"resource\": \"reg\", \"status\":\"deactivated\"}"
+  fi
+  if _send_signed_request "$_accUri" "$_djson" && _contains "$response" '"deactivated"'; then
     _info "Deactivate account success for $_accUri."
     _accid=$(echo "$response" | _egrep_o "\"id\" *: *[^,]*," | cut -d : -f 2 | tr -d ' ,')
   elif [ "$code" = "403" ]; then
@@ -3237,7 +3321,7 @@ __get_domain_new_authz() {
     _err "new-authz retry reach the max $_Max_new_authz_retry_times times."
   fi
 
-  if [ ! -z "$code" ] && [ ! "$code" = '201' ]; then
+  if [ "$code" ] && [ "$code" != '201' ]; then
     _err "new-authz error: $response"
     return 1
   fi
@@ -3251,7 +3335,11 @@ __trigger_validation() {
   _debug2 _t_url "$_t_url"
   _t_key_authz="$2"
   _debug2 _t_key_authz "$_t_key_authz"
-  _send_signed_request "$_t_url" "{\"resource\": \"challenge\", \"keyAuthorization\": \"$_t_key_authz\"}"
+  if [ "$ACME_VERSION" = "2" ]; then
+    _send_signed_request "$_t_url" "{\"keyAuthorization\": \"$_t_key_authz\"}"
+  else
+    _send_signed_request "$_t_url" "{\"resource\": \"challenge\", \"keyAuthorization\": \"$_t_key_authz\"}"
+  fi
 }
 
 #webroot, domain domainlist  keylength
@@ -3267,6 +3355,7 @@ issue() {
   _web_roots="$1"
   _main_domain="$2"
   _alt_domains="$3"
+
   if _contains "$_main_domain" ","; then
     _main_domain=$(echo "$2,$3" | cut -d , -f 1)
     _alt_domains=$(echo "$2,$3" | cut -d , -f 2- | sed "s/,${NO_VALUE}$//")
@@ -3393,32 +3482,109 @@ issue() {
   sep='#'
   dvsep=','
   if [ -z "$vlist" ]; then
+    if [ "$ACME_VERSION" = "2" ]; then
+      #make new order request
+      _identifiers="{\"type\":\"dns\",\"value\":\"$_main_domain\"}"
+      for d in $(echo "$_alt_domains" | tr ',' ' '); do
+        if [ "$d" ]; then
+          _identifiers="$_identifiers,{\"type\":\"dns\",\"value\":\"$d\"}"
+        fi
+      done
+      _debug2 _identifiers "$_identifiers"
+      if ! _send_signed_request "$ACME_NEW_ORDER" "{\"identifiers\": [$_identifiers]}"; then
+        _err "Create new order error."
+        _clearup
+        _on_issue_err "$_post_hook"
+        return 1
+      fi
+
+      Le_OrderFinalize="$(echo "$response" | tr -d '\r\n' | _egrep_o '"finalize" *: *"[^"]*"' | cut -d '"' -f 4)"
+      _debug Le_OrderFinalize "$Le_OrderFinalize"
+      if [ -z "$Le_OrderFinalize" ]; then
+        _err "Create new order error. Le_OrderFinalize not found. $response"
+        _clearup
+        _on_issue_err "$_post_hook"
+        return 1
+      fi
+
+      #for dns manual mode
+      _savedomainconf "Le_OrderFinalize" "$Le_OrderFinalize"
+
+      _authorizations_seg="$(echo "$response" | tr -d '\r\n' | _egrep_o '"authorizations" *: *\[[^\]*\]' | cut -d '[' -f 2 | tr -d ']' | tr -d '"')"
+      _debug2 _authorizations_seg "$_authorizations_seg"
+      if [ -z "$_authorizations_seg" ]; then
+        _err "_authorizations_seg not found."
+        _clearup
+        _on_issue_err "$_post_hook"
+        return 1
+      fi
+
+      #domain and authz map
+      _authorizations_map=""
+      for _authz_url in $(echo "$_authorizations_seg" | tr ',' ' '); do
+        _debug2 "_authz_url" "$_authz_url"
+        if ! response="$(_get "$_authz_url")"; then
+          _err "get to authz error."
+          _clearup
+          _on_issue_err "$_post_hook"
+          return 1
+        fi
+
+        response="$(echo "$response" | _normalizeJson)"
+        _debug2 response "$response"
+        _d="$(echo "$response" | _egrep_o '"value" *: *"[^"]*"' | cut -d : -f 2 | tr -d ' "')"
+        if _contains "$response" "\"wildcard\" *: *true"; then
+          _d="*.$_d"
+        fi
+        _debug2 _d "$_d"
+        _authorizations_map="$_d,$response
+$_authorizations_map"
+      done
+      _debug2 _authorizations_map "$_authorizations_map"
+    fi
+
     alldomains=$(echo "$_main_domain,$_alt_domains" | tr ',' ' ')
-    _index=1
+    _index=0
     _currentRoot=""
     for d in $alldomains; do
       _info "Getting webroot for domain" "$d"
+      _index=$(_math $_index + 1)
       _w="$(echo $_web_roots | cut -d , -f $_index)"
       _debug _w "$_w"
       if [ "$_w" ]; then
         _currentRoot="$_w"
       fi
       _debug "_currentRoot" "$_currentRoot"
-      _index=$(_math $_index + 1)
 
       vtype="$VTYPE_HTTP"
+      #todo, v2 wildcard force to use dns
       if _startswith "$_currentRoot" "dns"; then
         vtype="$VTYPE_DNS"
       fi
 
       if [ "$_currentRoot" = "$W_TLS" ]; then
-        vtype="$VTYPE_TLS"
+        if [ "$ACME_VERSION" = "2" ]; then
+          vtype="$VTYPE_TLS2"
+        else
+          vtype="$VTYPE_TLS"
+        fi
       fi
 
-      if ! __get_domain_new_authz "$d"; then
-        _clearup
-        _on_issue_err "$_post_hook"
-        return 1
+      if [ "$ACME_VERSION" = "2" ]; then
+        response="$(echo "$_authorizations_map" | grep "^$d," | sed "s/$d,//")"
+        _debug2 "response" "$response"
+        if [ -z "$response" ]; then
+          _err "get to authz error."
+          _clearup
+          _on_issue_err "$_post_hook"
+          return 1
+        fi
+      else
+        if ! __get_domain_new_authz "$d"; then
+          _clearup
+          _on_issue_err "$_post_hook"
+          return 1
+        fi
       fi
 
       if [ -z "$thumbprint" ]; then
@@ -3428,7 +3594,7 @@ issue() {
       entry="$(printf "%s\n" "$response" | _egrep_o '[^\{]*"type":"'$vtype'"[^\}]*')"
       _debug entry "$entry"
       if [ -z "$entry" ]; then
-        _err "Error, can not get domain token $d"
+        _err "Error, can not get domain token entry $d"
         _clearup
         _on_issue_err "$_post_hook"
         return 1
@@ -3436,14 +3602,30 @@ issue() {
       token="$(printf "%s\n" "$entry" | _egrep_o '"token":"[^"]*' | cut -d : -f 2 | tr -d '"')"
       _debug token "$token"
 
-      uri="$(printf "%s\n" "$entry" | _egrep_o '"uri":"[^"]*' | cut -d '"' -f 4)"
+      if [ -z "$token" ]; then
+        _err "Error, can not get domain token $entry"
+        _clearup
+        _on_issue_err "$_post_hook"
+        return 1
+      fi
+      if [ "$ACME_VERSION" = "2" ]; then
+        uri="$(printf "%s\n" "$entry" | _egrep_o '"url":"[^"]*' | cut -d '"' -f 4 | _head_n 1)"
+      else
+        uri="$(printf "%s\n" "$entry" | _egrep_o '"uri":"[^"]*' | cut -d '"' -f 4)"
+      fi
       _debug uri "$uri"
 
+      if [ -z "$uri" ]; then
+        _err "Error, can not get domain uri. $entry"
+        _clearup
+        _on_issue_err "$_post_hook"
+        return 1
+      fi
       keyauthorization="$token.$thumbprint"
       _debug keyauthorization "$keyauthorization"
 
       if printf "%s" "$response" | grep '"status":"valid"' >/dev/null 2>&1; then
-        _debug "$d is already verified, skip."
+        _debug "$d is already verified."
         keyauthorization="$STATE_VERIFIED"
         _debug keyauthorization "$keyauthorization"
       fi
@@ -3463,7 +3645,7 @@ issue() {
       keyauthorization=$(echo "$ventry" | cut -d "$sep" -f 2)
       vtype=$(echo "$ventry" | cut -d "$sep" -f 4)
       _currentRoot=$(echo "$ventry" | cut -d "$sep" -f 5)
-
+      _debug d "$d"
       if [ "$keyauthorization" = "$STATE_VERIFIED" ]; then
         _debug "$d is already verified, skip $vtype."
         continue
@@ -3471,12 +3653,16 @@ issue() {
 
       if [ "$vtype" = "$VTYPE_DNS" ]; then
         dnsadded='0'
-        txtdomain="_acme-challenge.$d"
+        _dns_root_d="$d"
+        if _startswith "$_dns_root_d" "*."; then
+          _dns_root_d="$(echo "$_dns_root_d" | sed 's/*.//')"
+        fi
+        txtdomain="_acme-challenge.$_dns_root_d"
         _debug txtdomain "$txtdomain"
         txt="$(printf "%s" "$keyauthorization" | _digest "sha256" | _url_replace)"
         _debug txt "$txt"
 
-        d_api="$(_findHook "$d" dnsapi "$_currentRoot")"
+        d_api="$(_findHook "$_dns_root_d" dnsapi "$_currentRoot")"
 
         _debug d_api "$d_api"
 
@@ -3685,12 +3871,16 @@ issue() {
       return 1
     fi
 
-    if [ ! -z "$code" ] && [ ! "$code" = '202' ]; then
-      _err "$d:Challenge error: $response"
-      _clearupwebbroot "$_currentRoot" "$removelevel" "$token"
-      _clearup
-      _on_issue_err "$_post_hook" "$vlist"
-      return 1
+    if [ "$code" ] && [ "$code" != '202' ]; then
+      if [ "$ACME_VERSION" = "2" ] && [ "$code" = '200' ]; then
+        _debug "trigger validation code: $code"
+      else
+        _err "$d:Challenge error: $response"
+        _clearupwebbroot "$_currentRoot" "$removelevel" "$token"
+        _clearup
+        _on_issue_err "$_post_hook" "$vlist"
+        return 1
+      fi
     fi
 
     waittimes=0
@@ -3773,18 +3963,42 @@ issue() {
   _info "Verify finished, start to sign."
   der="$(_getfile "${CSR_PATH}" "${BEGIN_CSR}" "${END_CSR}" | tr -d "\r\n" | _url_replace)"
 
-  if ! _send_signed_request "${ACME_NEW_ORDER}" "{\"resource\": \"$ACME_NEW_ORDER_RES\", \"csr\": \"$der\"}" "needbase64"; then
-    _err "Sign failed."
-    _on_issue_err "$_post_hook"
-    return 1
-  fi
+  if [ "$ACME_VERSION" = "2" ]; then
+    if ! _send_signed_request "${Le_OrderFinalize}" "{\"csr\": \"$der\"}"; then
+      _err "Sign failed."
+      _on_issue_err "$_post_hook"
+      return 1
+    fi
+    if [ "$code" != "200" ]; then
+      _err "Sign failed, code is not 200."
+      _on_issue_err "$_post_hook"
+      return 1
+    fi
+    Le_LinkCert="$(echo "$response" | tr -d '\r\n' | _egrep_o '"certificate" *: *"[^"]*"' | cut -d '"' -f 4)"
 
-  _rcert="$response"
-  Le_LinkCert="$(grep -i '^Location.*$' "$HTTP_HEADER" | _head_n 1 | tr -d "\r\n" | cut -d " " -f 2)"
-  _debug "Le_LinkCert" "$Le_LinkCert"
-  _savedomainconf "Le_LinkCert" "$Le_LinkCert"
+    if ! _get "$Le_LinkCert" >"$CERT_PATH"; then
+      _err "Sign failed, code is not 200."
+      _on_issue_err "$_post_hook"
+      return 1
+    fi
 
-  if [ "$Le_LinkCert" ]; then
+    if [ "$(grep -- "$BEGIN_CERT" "$CERT_PATH" | wc -l)" -gt "1" ]; then
+      _debug "Found cert chain"
+      cat "$CERT_PATH" >"$CERT_FULLCHAIN_PATH"
+      _end_n="$(grep -n -- "$END_CERT" "$CERT_FULLCHAIN_PATH" | _head_n 1 | cut -d : -f 1)"
+      _debug _end_n "$_end_n"
+      sed -n "1,${_end_n}p" "$CERT_FULLCHAIN_PATH" >"$CERT_PATH"
+      _end_n="$(_math $_end_n + 1)"
+      sed -n "${_end_n},9999p" "$CERT_FULLCHAIN_PATH" >"$CA_CERT_PATH"
+    fi
+  else
+    if ! _send_signed_request "${ACME_NEW_ORDER}" "{\"resource\": \"$ACME_NEW_ORDER_RES\", \"csr\": \"$der\"}" "needbase64"; then
+      _err "Sign failed."
+      _on_issue_err "$_post_hook"
+      return 1
+    fi
+    _rcert="$response"
+    Le_LinkCert="$(grep -i '^Location.*$' "$HTTP_HEADER" | _head_n 1 | tr -d "\r\n" | cut -d " " -f 2)"
     echo "$BEGIN_CERT" >"$CERT_PATH"
 
     #if ! _get "$Le_LinkCert" | _base64 "multiline"  >> "$CERT_PATH" ; then
@@ -3798,6 +4012,12 @@ issue() {
     fi
 
     echo "$END_CERT" >>"$CERT_PATH"
+  fi
+
+  _debug "Le_LinkCert" "$Le_LinkCert"
+  _savedomainconf "Le_LinkCert" "$Le_LinkCert"
+
+  if [ "$Le_LinkCert" ]; then
     _info "$(__green "Cert success.")"
     cat "$CERT_PATH"
 
@@ -3824,40 +4044,49 @@ issue() {
 
   _cleardomainconf "Le_Vlist"
 
-  Le_LinkIssuer=$(grep -i '^Link' "$HTTP_HEADER" | _head_n 1 | cut -d " " -f 2 | cut -d ';' -f 1 | tr -d '<>')
-  if ! _contains "$Le_LinkIssuer" ":"; then
-    _info "$(__red "Relative issuer link found.")"
-    Le_LinkIssuer="$_ACME_SERVER_HOST$Le_LinkIssuer"
-  fi
-  _debug Le_LinkIssuer "$Le_LinkIssuer"
-  _savedomainconf "Le_LinkIssuer" "$Le_LinkIssuer"
-
-  if [ "$Le_LinkIssuer" ]; then
-    _link_issuer_retry=0
-    _MAX_ISSUER_RETRY=5
-    while [ "$_link_issuer_retry" -lt "$_MAX_ISSUER_RETRY" ]; do
-      _debug _link_issuer_retry "$_link_issuer_retry"
-      if _get "$Le_LinkIssuer" >"$CA_CERT_PATH.der"; then
-        echo "$BEGIN_CERT" >"$CA_CERT_PATH"
-        _base64 "multiline" <"$CA_CERT_PATH.der" >>"$CA_CERT_PATH"
-        echo "$END_CERT" >>"$CA_CERT_PATH"
-
-        _info "The intermediate CA cert is in $(__green " $CA_CERT_PATH ")"
-        cat "$CA_CERT_PATH" >>"$CERT_FULLCHAIN_PATH"
-        _info "And the full chain certs is there: $(__green " $CERT_FULLCHAIN_PATH ")"
-
-        rm -f "$CA_CERT_PATH.der"
-        break
-      fi
-      _link_issuer_retry=$(_math $_link_issuer_retry + 1)
-      _sleep "$_link_issuer_retry"
-    done
-    if [ "$_link_issuer_retry" = "$_MAX_ISSUER_RETRY" ]; then
-      _err "Max retry for issuer ca cert is reached."
-    fi
+  if [ "$ACME_VERSION" = "2" ]; then
+    _debug "v2 chain."
   else
-    _debug "No Le_LinkIssuer header found."
+    Le_LinkIssuer=$(grep -i '^Link' "$HTTP_HEADER" | _head_n 1 | cut -d " " -f 2 | cut -d ';' -f 1 | tr -d '<>')
+
+    if [ "$Le_LinkIssuer" ]; then
+      if ! _contains "$Le_LinkIssuer" ":"; then
+        _info "$(__red "Relative issuer link found.")"
+        Le_LinkIssuer="$_ACME_SERVER_HOST$Le_LinkIssuer"
+      fi
+      _debug Le_LinkIssuer "$Le_LinkIssuer"
+      _savedomainconf "Le_LinkIssuer" "$Le_LinkIssuer"
+
+      _link_issuer_retry=0
+      _MAX_ISSUER_RETRY=5
+      while [ "$_link_issuer_retry" -lt "$_MAX_ISSUER_RETRY" ]; do
+        _debug _link_issuer_retry "$_link_issuer_retry"
+        if [ "$ACME_VERSION" = "2" ]; then
+          if _get "$Le_LinkIssuer" >"$CA_CERT_PATH"; then
+            break
+          fi
+        else
+          if _get "$Le_LinkIssuer" >"$CA_CERT_PATH.der"; then
+            echo "$BEGIN_CERT" >"$CA_CERT_PATH"
+            _base64 "multiline" <"$CA_CERT_PATH.der" >>"$CA_CERT_PATH"
+            echo "$END_CERT" >>"$CA_CERT_PATH"
+            cat "$CA_CERT_PATH" >>"$CERT_FULLCHAIN_PATH"
+            rm -f "$CA_CERT_PATH.der"
+            break
+          fi
+        fi
+        _link_issuer_retry=$(_math $_link_issuer_retry + 1)
+        _sleep "$_link_issuer_retry"
+      done
+      if [ "$_link_issuer_retry" = "$_MAX_ISSUER_RETRY" ]; then
+        _err "Max retry for issuer ca cert is reached."
+      fi
+    else
+      _debug "No Le_LinkIssuer header found."
+    fi
   fi
+  [ -f "$CA_CERT_PATH" ] && _info "The intermediate CA cert is in $(__green " $CA_CERT_PATH ")"
+  [ -f "$CERT_FULLCHAIN_PATH" ] && _info "And the full chain certs is there: $(__green " $CERT_FULLCHAIN_PATH ")"
 
   Le_CertCreateTime=$(_time)
   _savedomainconf "Le_CertCreateTime" "$Le_CertCreateTime"
@@ -3957,7 +4186,7 @@ renew() {
       _savedomainconf Le_API "$Le_API"
     fi
     if [ "$_OLD_STAGE_CA_HOST" = "$Le_API" ]; then
-      export Le_API="$STAGE_CA"
+      export Le_API="$DEFAULT_STAGING_CA"
       _savedomainconf Le_API "$Le_API"
     fi
     export ACME_DIRECTORY="$Le_API"
@@ -4045,8 +4274,6 @@ signcsr() {
     return 1
   fi
 
-  _initpath
-
   _csrsubj=$(_readSubjectFromCSR "$_csrfile")
   if [ "$?" != "0" ]; then
     _err "Can not read subject from csr: $_csrfile"
@@ -4083,6 +4310,9 @@ signcsr() {
     return 1
   fi
 
+  if [ -z "$ACME_VERSION" ] && _contains "$_csrsubj,$_csrdomainlist" "*."; then
+    export ACME_VERSION=2
+  fi
   _initpath "$_csrsubj" "$_csrkeylength"
   mkdir -p "$DOMAIN_PATH"
 
@@ -4448,7 +4678,11 @@ revoke() {
 
   _initAPI
 
-  data="{\"resource\": \"revoke-cert\", \"certificate\": \"$cert\"}"
+  if [ "$ACME_VERSION" = "2" ]; then
+    data="{\"certificate\": \"$cert\"}"
+  else
+    data="{\"resource\": \"revoke-cert\", \"certificate\": \"$cert\"}"
+  fi
   uri="${ACME_REVOKE_CERT}"
 
   if [ -f "$CERT_KEY_PATH" ]; then
@@ -4519,27 +4753,56 @@ _deactivate() {
   _d_type="$2"
   _initpath
 
-  if ! __get_domain_new_authz "$_d_domain"; then
-    _err "Can not get domain new authz token."
-    return 1
+  if [ "$ACME_VERSION" = "2" ]; then
+    _identifiers="{\"type\":\"dns\",\"value\":\"$_d_domain\"}"
+    if ! _send_signed_request "$ACME_NEW_ORDER" "{\"identifiers\": [$_identifiers]}"; then
+      _err "Can not get domain new order."
+      return 1
+    fi
+    _authorizations_seg="$(echo "$response" | tr -d '\r\n' | _egrep_o '"authorizations" *: *\[[^\]*\]' | cut -d '[' -f 2 | tr -d ']' | tr -d '"')"
+    _debug2 _authorizations_seg "$_authorizations_seg"
+    if [ -z "$_authorizations_seg" ]; then
+      _err "_authorizations_seg not found."
+      _clearup
+      _on_issue_err "$_post_hook"
+      return 1
+    fi
+
+    authzUri="$_authorizations_seg"
+    _debug2 "authzUri" "$authzUri"
+    if ! response="$(_get "$authzUri")"; then
+      _err "get to authz error."
+      _clearup
+      _on_issue_err "$_post_hook"
+      return 1
+    fi
+
+    response="$(echo "$response" | _normalizeJson)"
+    _debug2 response "$response"
+    _URL_NAME="url"
+  else
+    if ! __get_domain_new_authz "$_d_domain"; then
+      _err "Can not get domain new authz token."
+      return 1
+    fi
+
+    authzUri="$(echo "$responseHeaders" | grep "^Location:" | _head_n 1 | cut -d ' ' -f 2 | tr -d "\r\n")"
+    _debug "authzUri" "$authzUri"
+    if [ "$code" ] && [ ! "$code" = '201' ]; then
+      _err "new-authz error: $response"
+      return 1
+    fi
+    _URL_NAME="uri"
   fi
 
-  authzUri="$(echo "$responseHeaders" | grep "^Location:" | _head_n 1 | cut -d ' ' -f 2 | tr -d "\r\n")"
-  _debug "authzUri" "$authzUri"
-
-  if [ "$code" ] && [ ! "$code" = '201' ]; then
-    _err "new-authz error: $response"
-    return 1
-  fi
-
-  entries="$(echo "$response" | _egrep_o '{ *"type":"[^"]*", *"status": *"valid", *"uri"[^}]*')"
+  entries="$(echo "$response" | _egrep_o "{ *\"type\":\"[^\"]*\", *\"status\": *\"valid\", *\"$_URL_NAME\"[^}]*")"
   if [ -z "$entries" ]; then
     _info "No valid entries found."
     if [ -z "$thumbprint" ]; then
       thumbprint="$(__calc_account_thumbprint)"
     fi
     _debug "Trigger validation."
-    vtype="$VTYPE_HTTP"
+    vtype="$VTYPE_DNS"
     entry="$(printf "%s\n" "$response" | _egrep_o '[^\{]*"type":"'$vtype'"[^\}]*')"
     _debug entry "$entry"
     if [ -z "$entry" ]; then
@@ -4549,7 +4812,7 @@ _deactivate() {
     token="$(printf "%s\n" "$entry" | _egrep_o '"token":"[^"]*' | cut -d : -f 2 | tr -d '"')"
     _debug token "$token"
 
-    uri="$(printf "%s\n" "$entry" | _egrep_o '"uri":"[^"]*' | cut -d : -f 2,3 | tr -d '"')"
+    uri="$(printf "%s\n" "$entry" | _egrep_o "\"$_URL_NAME\":\"[^\"]*" | cut -d : -f 2,3 | tr -d '"')"
     _debug uri "$uri"
 
     keyauthorization="$token.$thumbprint"
@@ -4575,7 +4838,7 @@ _deactivate() {
     _debug _vtype "$_vtype"
     _info "Found $_vtype"
 
-    uri="$(printf "%s\n" "$entry" | _egrep_o '"uri":"[^"]*' | cut -d : -f 2,3 | tr -d '"')"
+    uri="$(printf "%s\n" "$entry" | _egrep_o "\"$_URL_NAME\":\"[^\"]*" | cut -d : -f 2,3 | tr -d '"')"
     _debug uri "$uri"
 
     if [ "$_d_type" ] && [ "$_d_type" != "$_vtype" ]; then
@@ -4585,7 +4848,13 @@ _deactivate() {
 
     _info "Deactivate: $_vtype"
 
-    if _send_signed_request "$authzUri" "{\"resource\": \"authz\", \"status\":\"deactivated\"}" && _contains "$response" '"deactivated"'; then
+    if [ "$ACME_VERSION" = "2" ]; then
+      _djson="{\"status\":\"deactivated\"}"
+    else
+      _djson="{\"resource\": \"authz\", \"status\":\"deactivated\"}"
+    fi
+
+    if _send_signed_request "$authzUri" "$_djson" && _contains "$response" '"deactivated"'; then
       _info "Deactivate: $_vtype success."
     else
       _err "Can not deactivate $_vtype."
@@ -4894,8 +5163,14 @@ install() {
   if [ -z "$NO_DETECT_SH" ]; then
     #Modify shebang
     if _exists bash; then
+      _bash_path="$(bash -c "command -v bash 2>/dev/null")"
+      if [ -z "$_bash_path" ]; then
+        _bash_path="$(bash -c 'echo $SHELL')"
+      fi
+    fi
+    if [ "$_bash_path" ]; then
       _info "Good, bash is found, so change the shebang to use bash as preferred."
-      _shebang='#!'"$(env bash -c "command -v bash")"
+      _shebang='#!'"$_bash_path"
       _setShebang "$LE_WORKING_DIR/$PROJECT_ENTRY" "$_shebang"
       for subf in $_SUB_FOLDERS; do
         if [ -d "$LE_WORKING_DIR/$subf" ]; then
@@ -5000,7 +5275,7 @@ Commands:
   --renew, -r              Renew a cert.
   --renew-all              Renew all the certs.
   --revoke                 Revoke a cert.
-  --remove                 Remove the cert from $PROJECT
+  --remove                 Remove the cert from list of certs known to $PROJECT_NAME.
   --list                   List all the certs.
   --showcsr                Show the content of a csr.
   --install-cronjob        Install the cron job to renew certs, you don't need to call this. The 'install' command can automatically install the cron job.
@@ -5307,6 +5582,10 @@ _process() {
             return 1
           fi
 
+          if _startswith "$_dvalue" "*."; then
+            _debug "Wildcard domain"
+            export ACME_VERSION=2
+          fi
           if [ -z "$_domain" ]; then
             _domain="$_dvalue"
           else
@@ -5510,7 +5789,7 @@ _process() {
         HTTPS_INSECURE="1"
         ;;
       --ca-bundle)
-        _ca_bundle="$(_readlink -f "$2")"
+        _ca_bundle="$(_readlink "$2")"
         CA_BUNDLE="$_ca_bundle"
         shift
         ;;
diff --git a/dnsapi/README.md b/dnsapi/README.md
index f029b72..40efc9e 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -679,6 +679,60 @@ acme.sh --issue --dns dns_dnsever -d example.com -d www.example.com
 ```
 The DNSEVER_ID and DNSEVER_PW will be saved in ~/.acme.sh/account.conf and will be reused when needed.
 
+## 36. Use autoDNS (InternetX)
+
+[InternetX](https://www.internetx.com/) offers an [xml api](https://help.internetx.com/display/API/AutoDNS+XML-API)  with your standard login credentials, set them like so:
+
+```
+export AUTODNS_USER="yourusername"
+export AUTODNS_PASSWORD="password"
+export AUTODNS_CONTEXT="context"
+```
+
+Then you can issue your certificates with:
+
+```
+acme.sh --issue --dns dns_autodns -d example.com -d www.example.com
+```
+
+The `AUTODNS_USER`, `AUTODNS_PASSWORD` and `AUTODNS_CONTEXT` settings will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
+
+## 37. Use Azure DNS
+
+You have to create a service principal first. See:[How to use Azure DNS](../../../wiki/How-to-use-Azure-DNS)
+
+```
+export AZUREDNS_SUBSCRIPTIONID="12345678-9abc-def0-1234-567890abcdef"
+export AZUREDNS_TENANTID="11111111-2222-3333-4444-555555555555"
+export AZUREDNS_APPID="3b5033b5-7a66-43a5-b3b9-a36b9e7c25ed"
+export AZUREDNS_CLIENTSECRET="1b0224ef-34d4-5af9-110f-77f527d561bd"
+```
+
+Then you can issue your certificates with:
+
+```
+acme.sh --issue --dns dns_azure -d example.com -d www.example.com
+```
+
+`AZUREDNS_SUBSCRIPTIONID`, `AZUREDNS_TENANTID`,`AZUREDNS_APPID` and `AZUREDNS_CLIENTSECRET` settings will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
+
+## 38. Use selectel.com(selectel.ru) domain API to automatically issue cert
+
+First you need to login to your account to get your API key from: https://my.selectel.ru/profile/apikeys.
+
+```sh
+export SL_Key="sdfsdfsdfljlbjkljlkjsdfoiwje"
+
+```
+
+Ok, let's issue a cert now:
+```
+acme.sh --issue --dns dns_selectel -d example.com -d www.example.com
+```
+
+The `SL_Key` will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
+
+
 # Use custom API
 
 If your API is not supported yet, you can write your own DNS API.
diff --git a/dnsapi/dns_autodns.sh b/dnsapi/dns_autodns.sh
new file mode 100644
index 0000000..9253448
--- /dev/null
+++ b/dnsapi/dns_autodns.sh
@@ -0,0 +1,264 @@
+#!/usr/bin/env sh
+# -*- mode: sh; tab-width: 2; indent-tabs-mode: s; coding: utf-8 -*-
+
+# This is the InternetX autoDNS xml api wrapper for acme.sh
+# Author: auerswald@gmail.com
+# Created: 2018-01-14
+#
+#     export AUTODNS_USER="username"
+#     export AUTODNS_PASSWORD="password"
+#     export AUTODNS_CONTEXT="context"
+#
+# Usage:
+#     acme.sh --issue --dns dns_autodns -d example.com
+
+AUTODNS_API="https://gateway.autodns.com"
+
+# Arguments:
+#   txtdomain
+#   txt
+dns_autodns_add() {
+  fulldomain="$1"
+  txtvalue="$2"
+
+  AUTODNS_USER="${AUTODNS_USER:-$(_readaccountconf_mutable AUTODNS_USER)}"
+  AUTODNS_PASSWORD="${AUTODNS_PASSWORD:-$(_readaccountconf_mutable AUTODNS_PASSWORD)}"
+  AUTODNS_CONTEXT="${AUTODNS_CONTEXT:-$(_readaccountconf_mutable AUTODNS_CONTEXT)}"
+
+  if [ -z "$AUTODNS_USER" ] || [ -z "$AUTODNS_CONTEXT" ] || [ -z "$AUTODNS_PASSWORD" ]; then
+    _err "You don't specify autodns user, password and context."
+    return 1
+  fi
+
+  _saveaccountconf_mutable AUTODNS_USER "$AUTODNS_USER"
+  _saveaccountconf_mutable AUTODNS_PASSWORD "$AUTODNS_PASSWORD"
+  _saveaccountconf_mutable AUTODNS_CONTEXT "$AUTODNS_CONTEXT"
+
+  _debug "First detect the root zone"
+
+  if ! _get_autodns_zone "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug _sub_domain "$_sub_domain"
+  _debug _zone "$_zone"
+  _debug _system_ns "$_system_ns"
+
+  _info "Adding TXT record"
+
+  autodns_response="$(_autodns_zone_update "$_zone" "$_sub_domain" "$txtvalue" "$_system_ns")"
+
+  if [ "$?" -eq "0" ]; then
+    _info "Added, OK"
+    return 0
+  fi
+
+  return 1
+}
+
+# Arguments:
+#   txtdomain
+#   txt
+dns_autodns_rm() {
+  fulldomain="$1"
+  txtvalue="$2"
+
+  AUTODNS_USER="${AUTODNS_USER:-$(_readaccountconf_mutable AUTODNS_USER)}"
+  AUTODNS_PASSWORD="${AUTODNS_PASSWORD:-$(_readaccountconf_mutable AUTODNS_PASSWORD)}"
+  AUTODNS_CONTEXT="${AUTODNS_CONTEXT:-$(_readaccountconf_mutable AUTODNS_CONTEXT)}"
+
+  if [ -z "$AUTODNS_USER" ] || [ -z "$AUTODNS_CONTEXT" ] || [ -z "$AUTODNS_PASSWORD" ]; then
+    _err "You don't specify autodns user, password and context."
+    return 1
+  fi
+
+  _debug "First detect the root zone"
+
+  if ! _get_autodns_zone "$fulldomain"; then
+    _err "zone not found"
+    return 1
+  fi
+
+  _debug _sub_domain "$_sub_domain"
+  _debug _zone "$_zone"
+  _debug _system_ns "$_system_ns"
+
+  _info "Delete TXT record"
+
+  autodns_response="$(_autodns_zone_cleanup "$_zone" "$_sub_domain" "$txtvalue" "$_system_ns")"
+
+  if [ "$?" -eq "0" ]; then
+    _info "Deleted, OK"
+    return 0
+  fi
+
+  return 1
+}
+
+####################  Private functions below ##################################
+
+# Arguments:
+#   fulldomain
+# Returns:
+#   _sub_domain=_acme-challenge.www
+#   _zone=domain.com
+#   _system_ns
+_get_autodns_zone() {
+  domain="$1"
+
+  i=2
+  p=1
+
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+
+    if [ -z "$h" ]; then
+      # not valid
+      return 1
+    fi
+
+    autodns_response="$(_autodns_zone_inquire "$h")"
+
+    if [ "$?" -ne "0" ]; then
+      _err "invalid domain"
+      return 1
+    fi
+
+    if _contains "$autodns_response" "<summary>1</summary>" >/dev/null; then
+      _zone="$(echo "$autodns_response" | _egrep_o '<name>[^<]*</name>' | cut -d '>' -f 2 | cut -d '<' -f 1)"
+      _system_ns="$(echo "$autodns_response" | _egrep_o '<system_ns>[^<]*</system_ns>' | cut -d '>' -f 2 | cut -d '<' -f 1)"
+      _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+      return 0
+    fi
+
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+
+  return 1
+}
+
+_build_request_auth_xml() {
+  printf "<auth>
+    <user>%s</user>
+    <password>%s</password>
+    <context>%s</context>
+  </auth>" "$AUTODNS_USER" "$AUTODNS_PASSWORD" "$AUTODNS_CONTEXT"
+}
+
+# Arguments:
+#   zone
+_build_zone_inquire_xml() {
+  printf "<?xml version=\"1.0\" encoding=\"UTF-8\"?>
+  <request>
+    %s
+    <task>
+      <code>0205</code>
+      <view>
+        <children>1</children>
+        <limit>1</limit>
+      </view>
+      <where>
+        <key>name</key>
+        <operator>eq</operator>
+        <value>%s</value>
+      </where>
+    </task>
+  </request>" "$(_build_request_auth_xml)" "$1"
+}
+
+# Arguments:
+#   zone
+#   subdomain
+#   txtvalue
+#   system_ns
+_build_zone_update_xml() {
+  printf "<?xml version=\"1.0\" encoding=\"UTF-8\"?>
+  <request>
+    %s
+    <task>
+      <code>0202001</code>
+      <default>
+        <rr_add>
+          <name>%s</name>
+          <ttl>600</ttl>
+          <type>TXT</type>
+          <value>%s</value>
+        </rr_add>
+      </default>
+      <zone>
+        <name>%s</name>
+        <system_ns>%s</system_ns>
+      </zone>
+    </task>
+  </request>" "$(_build_request_auth_xml)" "$2" "$3" "$1" "$4"
+}
+
+# Arguments:
+#   zone
+_autodns_zone_inquire() {
+  request_data="$(_build_zone_inquire_xml "$1")"
+  autodns_response="$(_autodns_api_call "$request_data")"
+  ret="$?"
+
+  printf "%s" "$autodns_response"
+  return "$ret"
+}
+
+# Arguments:
+#   zone
+#   subdomain
+#   txtvalue
+#   system_ns
+_autodns_zone_update() {
+  request_data="$(_build_zone_update_xml "$1" "$2" "$3" "$4")"
+  autodns_response="$(_autodns_api_call "$request_data")"
+  ret="$?"
+
+  printf "%s" "$autodns_response"
+  return "$ret"
+}
+
+# Arguments:
+#   zone
+#   subdomain
+#   txtvalue
+#   system_ns
+_autodns_zone_cleanup() {
+  request_data="$(_build_zone_update_xml "$1" "$2" "$3" "$4")"
+  # replace 'rr_add>' with 'rr_rem>' in request_data
+  request_data="$(printf -- "%s" "$request_data" | sed 's/rr_add>/rr_rem>/g')"
+  autodns_response="$(_autodns_api_call "$request_data")"
+  ret="$?"
+
+  printf "%s" "$autodns_response"
+  return "$ret"
+}
+
+# Arguments:
+#   request_data
+_autodns_api_call() {
+  request_data="$1"
+
+  _debug request_data "$request_data"
+
+  autodns_response="$(_post "$request_data" "$AUTODNS_API")"
+  ret="$?"
+
+  _debug autodns_response "$autodns_response"
+
+  if [ "$ret" -ne "0" ]; then
+    _err "error"
+    return 1
+  fi
+
+  if _contains "$autodns_response" "<type>success</type>" >/dev/null; then
+    _info "success"
+    printf "%s" "$autodns_response"
+    return 0
+  fi
+
+  return 1
+}
diff --git a/dnsapi/dns_aws.sh b/dnsapi/dns_aws.sh
index 5a71651..ed31746 100755
--- a/dnsapi/dns_aws.sh
+++ b/dnsapi/dns_aws.sh
@@ -19,18 +19,19 @@ dns_aws_add() {
   fulldomain=$1
   txtvalue=$2
 
+  AWS_ACCESS_KEY_ID="${AWS_ACCESS_KEY_ID:-$(_readaccountconf_mutable AWS_ACCESS_KEY_ID)}"
+  AWS_SECRET_ACCESS_KEY="${AWS_SECRET_ACCESS_KEY:-$(_readaccountconf_mutable AWS_SECRET_ACCESS_KEY)}"
   if [ -z "$AWS_ACCESS_KEY_ID" ] || [ -z "$AWS_SECRET_ACCESS_KEY" ]; then
     AWS_ACCESS_KEY_ID=""
     AWS_SECRET_ACCESS_KEY=""
     _err "You don't specify aws route53 api key id and and api key secret yet."
-    _err "Please create you key and try again. see $(__green $AWS_WIKI)"
+    _err "Please create your key and try again. see $(__green $AWS_WIKI)"
     return 1
   fi
 
-  if [ -z "$AWS_SESSION_TOKEN" ]; then
-    _saveaccountconf AWS_ACCESS_KEY_ID "$AWS_ACCESS_KEY_ID"
-    _saveaccountconf AWS_SECRET_ACCESS_KEY "$AWS_SECRET_ACCESS_KEY"
-  fi
+  #save for future use
+  _saveaccountconf_mutable AWS_ACCESS_KEY_ID "$AWS_ACCESS_KEY_ID"
+  _saveaccountconf_mutable AWS_SECRET_ACCESS_KEY "$AWS_SECRET_ACCESS_KEY"
 
   _debug "First detect the root zone"
   if ! _get_root "$fulldomain"; then
@@ -56,6 +57,8 @@ dns_aws_rm() {
   fulldomain=$1
   txtvalue=$2
 
+  AWS_ACCESS_KEY_ID="${AWS_ACCESS_KEY_ID:-$(_readaccountconf_mutable AWS_ACCESS_KEY_ID)}"
+  AWS_SECRET_ACCESS_KEY="${AWS_SECRET_ACCESS_KEY:-$(_readaccountconf_mutable AWS_SECRET_ACCESS_KEY)}"
   _debug "First detect the root zone"
   if ! _get_root "$fulldomain"; then
     _err "invalid domain"
diff --git a/dnsapi/dns_azure.sh b/dnsapi/dns_azure.sh
new file mode 100644
index 0000000..0834ede
--- /dev/null
+++ b/dnsapi/dns_azure.sh
@@ -0,0 +1,249 @@
+#!/usr/bin/env sh
+
+########  Public functions #####################
+
+# Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+# Used to add txt record
+#
+# Ref: https://docs.microsoft.com/en-us/rest/api/dns/recordsets/createorupdate
+#
+dns_azure_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  AZUREDNS_SUBSCRIPTIONID="${AZUREDNS_SUBSCRIPTIONID:-$(_readaccountconf_mutable AZUREDNS_SUBSCRIPTIONID)}"
+  AZUREDNS_TENANTID="${AZUREDNS_TENANTID:-$(_readaccountconf_mutable AZUREDNS_TENANTID)}"
+  AZUREDNS_APPID="${AZUREDNS_APPID:-$(_readaccountconf_mutable AZUREDNS_APPID)}"
+  AZUREDNS_CLIENTSECRET="${AZUREDNS_CLIENTSECRET:-$(_readaccountconf_mutable AZUREDNS_CLIENTSECRET)}"
+
+  if [ -z "$AZUREDNS_SUBSCRIPTIONID" ]; then
+    AZUREDNS_SUBSCRIPTIONID=""
+    AZUREDNS_TENANTID=""
+    AZUREDNS_APPID=""
+    AZUREDNS_CLIENTSECRET=""
+    _err "You didn't specify the Azure Subscription ID "
+    return 1
+  fi
+
+  if [ -z "$AZUREDNS_TENANTID" ]; then
+    AZUREDNS_SUBSCRIPTIONID=""
+    AZUREDNS_TENANTID=""
+    AZUREDNS_APPID=""
+    AZUREDNS_CLIENTSECRET=""
+    _err "You didn't specify the Azure Tenant ID "
+    return 1
+  fi
+
+  if [ -z "$AZUREDNS_APPID" ]; then
+    AZUREDNS_SUBSCRIPTIONID=""
+    AZUREDNS_TENANTID=""
+    AZUREDNS_APPID=""
+    AZUREDNS_CLIENTSECRET=""
+    _err "You didn't specify the Azure App ID"
+    return 1
+  fi
+
+  if [ -z "$AZUREDNS_CLIENTSECRET" ]; then
+    AZUREDNS_SUBSCRIPTIONID=""
+    AZUREDNS_TENANTID=""
+    AZUREDNS_APPID=""
+    AZUREDNS_CLIENTSECRET=""
+    _err "You didn't specify the Azure Client Secret"
+    return 1
+  fi
+  #save account details to account conf file.
+  _saveaccountconf_mutable AZUREDNS_SUBSCRIPTIONID "$AZUREDNS_SUBSCRIPTIONID"
+  _saveaccountconf_mutable AZUREDNS_TENANTID "$AZUREDNS_TENANTID"
+  _saveaccountconf_mutable AZUREDNS_APPID "$AZUREDNS_APPID"
+  _saveaccountconf_mutable AZUREDNS_CLIENTSECRET "$AZUREDNS_CLIENTSECRET"
+
+  accesstoken=$(_azure_getaccess_token "$AZUREDNS_TENANTID" "$AZUREDNS_APPID" "$AZUREDNS_CLIENTSECRET")
+
+  if ! _get_root "$fulldomain" "$AZUREDNS_SUBSCRIPTIONID" "$accesstoken"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _domain_id "$_domain_id"
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  acmeRecordURI="https://management.azure.com$(printf '%s' "$_domain_id" | sed 's/\\//g')/TXT/$_sub_domain?api-version=2017-09-01"
+  _debug "$acmeRecordURI"
+  body="{\"properties\": {\"TTL\": 3600, \"TXTRecords\": [{\"value\": [\"$txtvalue\"]}]}}"
+  _azure_rest PUT "$acmeRecordURI" "$body" "$accesstoken"
+  if [ "$_code" = "200" ] || [ "$_code" = '201' ]; then
+    _info "validation record added"
+  else
+    _err "error adding validation record ($_code)"
+    return 1
+  fi
+}
+
+# Usage: fulldomain txtvalue
+# Used to remove the txt record after validation
+#
+# Ref: https://docs.microsoft.com/en-us/rest/api/dns/recordsets/delete
+#
+dns_azure_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  AZUREDNS_SUBSCRIPTIONID="${AZUREDNS_SUBSCRIPTIONID:-$(_readaccountconf_mutable AZUREDNS_SUBSCRIPTIONID)}"
+  AZUREDNS_TENANTID="${AZUREDNS_TENANTID:-$(_readaccountconf_mutable AZUREDNS_TENANTID)}"
+  AZUREDNS_APPID="${AZUREDNS_APPID:-$(_readaccountconf_mutable AZUREDNS_APPID)}"
+  AZUREDNS_CLIENTSECRET="${AZUREDNS_CLIENTSECRET:-$(_readaccountconf_mutable AZUREDNS_CLIENTSECRET)}"
+
+  if [ -z "$AZUREDNS_SUBSCRIPTIONID" ]; then
+    AZUREDNS_SUBSCRIPTIONID=""
+    AZUREDNS_TENANTID=""
+    AZUREDNS_APPID=""
+    AZUREDNS_CLIENTSECRET=""
+    _err "You didn't specify the Azure Subscription ID "
+    return 1
+  fi
+
+  if [ -z "$AZUREDNS_TENANTID" ]; then
+    AZUREDNS_SUBSCRIPTIONID=""
+    AZUREDNS_TENANTID=""
+    AZUREDNS_APPID=""
+    AZUREDNS_CLIENTSECRET=""
+    _err "You didn't specify the Azure Tenant ID "
+    return 1
+  fi
+
+  if [ -z "$AZUREDNS_APPID" ]; then
+    AZUREDNS_SUBSCRIPTIONID=""
+    AZUREDNS_TENANTID=""
+    AZUREDNS_APPID=""
+    AZUREDNS_CLIENTSECRET=""
+    _err "You didn't specify the Azure App ID"
+    return 1
+  fi
+
+  if [ -z "$AZUREDNS_CLIENTSECRET" ]; then
+    AZUREDNS_SUBSCRIPTIONID=""
+    AZUREDNS_TENANTID=""
+    AZUREDNS_APPID=""
+    AZUREDNS_CLIENTSECRET=""
+    _err "You didn't specify the Azure Client Secret"
+    return 1
+  fi
+
+  accesstoken=$(_azure_getaccess_token "$AZUREDNS_TENANTID" "$AZUREDNS_APPID" "$AZUREDNS_CLIENTSECRET")
+
+  if ! _get_root "$fulldomain" "$AZUREDNS_SUBSCRIPTIONID" "$accesstoken"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _domain_id "$_domain_id"
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  acmeRecordURI="https://management.azure.com$(printf '%s' "$_domain_id" | sed 's/\\//g')/TXT/$_sub_domain?api-version=2017-09-01"
+  _debug "$acmeRecordURI"
+  body="{\"properties\": {\"TTL\": 3600, \"TXTRecords\": [{\"value\": [\"$txtvalue\"]}]}}"
+  _azure_rest DELETE "$acmeRecordURI" "" "$accesstoken"
+  if [ "$_code" = "200" ] || [ "$_code" = '204' ]; then
+    _info "validation record removed"
+  else
+    _err "error removing validation record ($_code)"
+    return 1
+  fi
+}
+
+###################  Private functions below ##################################
+
+_azure_rest() {
+  m=$1
+  ep="$2"
+  data="$3"
+  accesstoken="$4"
+
+  export _H1="authorization: Bearer $accesstoken"
+  export _H2="accept: application/json"
+  export _H3="Content-Type: application/json"
+
+  _debug "$ep"
+  if [ "$m" != "GET" ]; then
+    _debug data "$data"
+    response="$(_post "$data" "$ep" "" "$m")"
+  else
+    response="$(_get "$ep")"
+  fi
+  _debug2 response "$response"
+
+  _code="$(grep "^HTTP" "$HTTP_HEADER" | _tail_n 1 | cut -d " " -f 2 | tr -d "\r\n")"
+  _debug2 "http response code $_code"
+
+  if [ "$?" != "0" ]; then
+    _err "error $ep"
+    return 1
+  fi
+  return 0
+}
+
+## Ref: https://docs.microsoft.com/en-us/azure/active-directory/develop/active-directory-protocols-oauth-service-to-service#request-an-access-token
+_azure_getaccess_token() {
+  TENANTID=$1
+  clientID=$2
+  clientSecret=$3
+
+  export _H1="accept: application/json"
+  export _H2="Content-Type: application/x-www-form-urlencoded"
+
+  body="resource=$(printf "%s" 'https://management.core.windows.net/' | _url_encode)&client_id=$(printf "%s" "$clientID" | _url_encode)&client_secret=$(printf "%s" "$clientSecret" | _url_encode)&grant_type=client_credentials"
+  _debug data "$body"
+  response="$(_post "$body" "https://login.windows.net/$TENANTID/oauth2/token" "" "POST")"
+  accesstoken=$(echo "$response" | _egrep_o "\"access_token\":\"[^\"]*\"" | _head_n 1 | cut -d : -f 2 | tr -d \")
+  _debug2 "response $response"
+
+  if [ -z "$accesstoken" ]; then
+    _err "no acccess token received"
+    return 1
+  fi
+  if [ "$?" != "0" ]; then
+    _err "error $response"
+    return 1
+  fi
+  printf "%s" "$accesstoken"
+  return 0
+}
+
+_get_root() {
+  domain=$1
+  subscriptionId=$2
+  accesstoken=$3
+  i=2
+  p=1
+
+  ## Ref: https://docs.microsoft.com/en-us/rest/api/dns/zones/list
+  ## returns up to 100 zones in one response therefore handling more results is not not implemented
+  ## (ZoneListResult with  continuation token for the next page of results)
+  ## Per https://docs.microsoft.com/en-us/azure/azure-subscription-service-limits#dns-limits you are limited to 100 Zone/subscriptions anyways
+  ##
+  _azure_rest GET "https://management.azure.com/subscriptions/$subscriptionId/providers/Microsoft.Network/dnszones?api-version=2017-09-01" "" "$accesstoken"
+
+  # Find matching domain name is Json response
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug2 "Checking domain: $h"
+    if [ -z "$h" ]; then
+      #not valid
+      _err "Invalid domain"
+      return 1
+    fi
+
+    if _contains "$response" "\"name\":\"$h\"" >/dev/null; then
+      _domain_id=$(echo "$response" | _egrep_o "\{\"id\":\"[^\"]*$h\"" | head -n 1 | cut -d : -f 2 | tr -d \")
+      if [ "$_domain_id" ]; then
+        _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+        _domain=$h
+        return 0
+      fi
+      return 1
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
diff --git a/dnsapi/dns_cf.sh b/dnsapi/dns_cf.sh
index 57a2e88..68264a4 100755
--- a/dnsapi/dns_cf.sh
+++ b/dnsapi/dns_cf.sh
@@ -51,33 +51,36 @@ dns_cf_add() {
     return 1
   fi
 
-  count=$(printf "%s\n" "$response" | _egrep_o "\"count\":[^,]*" | cut -d : -f 2)
-  _debug count "$count"
-  if [ "$count" = "0" ]; then
-    _info "Adding record"
-    if _cf_rest POST "zones/$_domain_id/dns_records" "{\"type\":\"TXT\",\"name\":\"$fulldomain\",\"content\":\"$txtvalue\",\"ttl\":120}"; then
-      if printf -- "%s" "$response" | grep "$fulldomain" >/dev/null; then
-        _info "Added, OK"
-        return 0
-      else
-        _err "Add txt record error."
-        return 1
-      fi
-    fi
-    _err "Add txt record error."
-  else
-    _info "Updating record"
-    record_id=$(printf "%s\n" "$response" | _egrep_o "\"id\":\"[^\"]*\"" | cut -d : -f 2 | tr -d \" | head -n 1)
-    _debug "record_id" "$record_id"
-
-    _cf_rest PUT "zones/$_domain_id/dns_records/$record_id" "{\"id\":\"$record_id\",\"type\":\"TXT\",\"name\":\"$fulldomain\",\"content\":\"$txtvalue\",\"zone_id\":\"$_domain_id\",\"zone_name\":\"$_domain\"}"
-    if [ "$?" = "0" ]; then
-      _info "Updated, OK"
+  # For wildcard cert, the main root domain and the wildcard domain have the same txt subdomain name, so
+  # we can not use updating anymore.
+  #  count=$(printf "%s\n" "$response" | _egrep_o "\"count\":[^,]*" | cut -d : -f 2)
+  #  _debug count "$count"
+  #  if [ "$count" = "0" ]; then
+  _info "Adding record"
+  if _cf_rest POST "zones/$_domain_id/dns_records" "{\"type\":\"TXT\",\"name\":\"$fulldomain\",\"content\":\"$txtvalue\",\"ttl\":120}"; then
+    if printf -- "%s" "$response" | grep "$fulldomain" >/dev/null; then
+      _info "Added, OK"
       return 0
+    else
+      _err "Add txt record error."
+      return 1
     fi
-    _err "Update error"
-    return 1
   fi
+  _err "Add txt record error."
+  return 1
+  #  else
+  #    _info "Updating record"
+  #    record_id=$(printf "%s\n" "$response" | _egrep_o "\"id\":\"[^\"]*\"" | cut -d : -f 2 | tr -d \" | head -n 1)
+  #    _debug "record_id" "$record_id"
+  #
+  #    _cf_rest PUT "zones/$_domain_id/dns_records/$record_id" "{\"id\":\"$record_id\",\"type\":\"TXT\",\"name\":\"$fulldomain\",\"content\":\"$txtvalue\",\"zone_id\":\"$_domain_id\",\"zone_name\":\"$_domain\"}"
+  #    if [ "$?" = "0" ]; then
+  #      _info "Updated, OK"
+  #      return 0
+  #    fi
+  #    _err "Update error"
+  #    return 1
+  #  fi
 
 }
 
diff --git a/dnsapi/dns_inwx.sh b/dnsapi/dns_inwx.sh
index 74440bd..5dfba7d 100644
--- a/dnsapi/dns_inwx.sh
+++ b/dnsapi/dns_inwx.sh
@@ -35,53 +35,9 @@ dns_inwx_add() {
   fi
   _debug _sub_domain "$_sub_domain"
   _debug _domain "$_domain"
-  _debug "Getting txt records"
 
-  xml_content=$(printf '<?xml version="1.0" encoding="UTF-8"?>
-  <methodCall>
-  <methodName>nameserver.info</methodName>
-  <params>
-   <param>
-    <value>
-     <struct>
-      <member>
-       <name>domain</name>
-       <value>
-        <string>%s</string>
-       </value>
-      </member>
-      <member>
-       <name>type</name>
-       <value>
-        <string>TXT</string>
-       </value>
-      </member>
-      <member>
-       <name>name</name>
-       <value>
-        <string>%s</string>
-       </value>
-      </member>
-     </struct>
-    </value>
-   </param>
-  </params>
-  </methodCall>' "$_domain" "$_sub_domain")
-  response="$(_post "$xml_content" "$INWX_Api" "" "POST")"
-
-  if ! printf "%s" "$response" | grep "Command completed successfully" >/dev/null; then
-    _err "Error could net get txt records"
-    return 1
-  fi
-
-  if ! printf "%s" "$response" | grep "count" >/dev/null; then
-    _info "Adding record"
-    _inwx_add_record "$_domain" "$_sub_domain" "$txtvalue"
-  else
-    _record_id=$(printf '%s' "$response" | _egrep_o '.*(<member><name>record){1}(.*)([0-9]+){1}' | _egrep_o '<name>id<\/name><value><int>[0-9]+' | _egrep_o '[0-9]+')
-    _info "Updating record"
-    _inwx_update_record "$_record_id" "$txtvalue"
-  fi
+  _info "Adding record"
+  _inwx_add_record "$_domain" "$_sub_domain" "$txtvalue"
 
 }
 
@@ -147,7 +103,7 @@ dns_inwx_rm() {
   </methodCall>' "$_domain" "$_sub_domain")
   response="$(_post "$xml_content" "$INWX_Api" "" "POST")"
 
-  if ! printf "%s" "$response" | grep "Command completed successfully" >/dev/null; then
+  if ! _contains "$response" "Command completed successfully"; then
     _err "Error could not get txt records"
     return 1
   fi
diff --git a/dnsapi/dns_ovh.sh b/dnsapi/dns_ovh.sh
index eaa90bd..6009473 100755
--- a/dnsapi/dns_ovh.sh
+++ b/dnsapi/dns_ovh.sh
@@ -78,13 +78,7 @@ _ovh_get_api() {
   esac
 }
 
-########  Public functions #####################
-
-#Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
-dns_ovh_add() {
-  fulldomain=$1
-  txtvalue=$2
-
+_initAuth() {
   if [ -z "$OVH_AK" ] || [ -z "$OVH_AS" ]; then
     OVH_AK=""
     OVH_AS=""
@@ -119,14 +113,26 @@ dns_ovh_add() {
 
   _info "Checking authentication"
 
-  response="$(_ovh_rest GET "domain")"
-  if _contains "$response" "INVALID_CREDENTIAL"; then
+  if ! _ovh_rest GET "domain" || _contains "$response" "INVALID_CREDENTIAL"; then
     _err "The consumer key is invalid: $OVH_CK"
     _err "Please retry to create a new one."
     _clearaccountconf OVH_CK
     return 1
   fi
   _info "Consumer key is ok."
+  return 0
+}
+
+########  Public functions #####################
+
+#Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_ovh_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  if ! _initAuth; then
+    return 1
+  fi
 
   _debug "First detect the root zone"
   if ! _get_root "$fulldomain"; then
@@ -137,49 +143,58 @@ dns_ovh_add() {
   _debug _sub_domain "$_sub_domain"
   _debug _domain "$_domain"
 
-  _debug "Getting txt records"
-  _ovh_rest GET "domain/zone/$_domain/record?fieldType=TXT&subDomain=$_sub_domain"
-
-  if _contains "$response" '\[\]' || _contains "$response" "This service does not exist"; then
-    _info "Adding record"
-    if _ovh_rest POST "domain/zone/$_domain/record" "{\"fieldType\":\"TXT\",\"subDomain\":\"$_sub_domain\",\"target\":\"$txtvalue\",\"ttl\":60}"; then
-      if _contains "$response" "$txtvalue"; then
-        _ovh_rest POST "domain/zone/$_domain/refresh"
-        _debug "Refresh:$response"
-        _info "Added, sleeping 10 seconds"
-        sleep 10
-        return 0
-      fi
+  _info "Adding record"
+  if _ovh_rest POST "domain/zone/$_domain/record" "{\"fieldType\":\"TXT\",\"subDomain\":\"$_sub_domain\",\"target\":\"$txtvalue\",\"ttl\":60}"; then
+    if _contains "$response" "$txtvalue"; then
+      _ovh_rest POST "domain/zone/$_domain/refresh"
+      _debug "Refresh:$response"
+      _info "Added, sleep 10 seconds."
+      _sleep 10
+      return 0
     fi
-    _err "Add txt record error."
-  else
-    _info "Updating record"
-    record_id=$(printf "%s" "$response" | tr -d "[]" | cut -d , -f 1)
-    if [ -z "$record_id" ]; then
-      _err "Can not get record id."
-      return 1
-    fi
-    _debug "record_id" "$record_id"
-
-    if _ovh_rest PUT "domain/zone/$_domain/record/$record_id" "{\"target\":\"$txtvalue\",\"subDomain\":\"$_sub_domain\",\"ttl\":60}"; then
-      if _contains "$response" "null"; then
-        _ovh_rest POST "domain/zone/$_domain/refresh"
-        _debug "Refresh:$response"
-        _info "Updated, sleeping 10 seconds"
-        sleep 10
-        return 0
-      fi
-    fi
-    _err "Update error"
-    return 1
   fi
+  _err "Add txt record error."
+  return 1
 
 }
 
 #fulldomain
 dns_ovh_rm() {
   fulldomain=$1
+  txtvalue=$2
 
+  if ! _initAuth; then
+    return 1
+  fi
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+  _debug "Getting txt records"
+  if ! _ovh_rest GET "domain/zone/$_domain/record?fieldType=TXT&subDomain=$_sub_domain"; then
+    return 1
+  fi
+
+  for rid in $(echo "$response" | tr '][,' '   '); do
+    _debug rid "$rid"
+    if ! _ovh_rest GET "domain/zone/$_domain/record/$rid"; then
+      return 1
+    fi
+    if _contains "$response" "\"target\":\"$txtvalue\""; then
+      _debug "Found txt id:$rid"
+      if ! _ovh_rest DELETE "domain/zone/$_domain/record/$rid"; then
+        return 1
+      fi
+      return 0
+    fi
+  done
+
+  return 1
 }
 
 ####################  Private functions below ##################################
@@ -191,7 +206,7 @@ _ovh_authentication() {
   _H3=""
   _H4=""
 
-  _ovhdata='{"accessRules": [{"method": "GET","path": "/auth/time"},{"method": "GET","path": "/domain"},{"method": "GET","path": "/domain/zone/*"},{"method": "GET","path": "/domain/zone/*/record"},{"method": "POST","path": "/domain/zone/*/record"},{"method": "POST","path": "/domain/zone/*/refresh"},{"method": "PUT","path": "/domain/zone/*/record/*"}],"redirection":"'$ovh_success'"}'
+  _ovhdata='{"accessRules": [{"method": "GET","path": "/auth/time"},{"method": "GET","path": "/domain"},{"method": "GET","path": "/domain/zone/*"},{"method": "GET","path": "/domain/zone/*/record"},{"method": "POST","path": "/domain/zone/*/record"},{"method": "POST","path": "/domain/zone/*/refresh"},{"method": "PUT","path": "/domain/zone/*/record/*"},{"method": "DELETE","path": "/domain/zone/*/record/*"}],"redirection":"'$ovh_success'"}'
 
   response="$(_post "$_ovhdata" "$OVH_API/auth/credential")"
   _debug3 response "$response"
@@ -279,15 +294,15 @@ _ovh_rest() {
   export _H3="X-Ovh-Timestamp: $_ovh_t"
   export _H4="X-Ovh-Consumer: $OVH_CK"
   export _H5="Content-Type: application/json;charset=utf-8"
-  if [ "$data" ] || [ "$m" = "POST" ] || [ "$m" = "PUT" ]; then
+  if [ "$data" ] || [ "$m" = "POST" ] || [ "$m" = "PUT" ] || [ "$m" = "DELETE" ]; then
     _debug data "$data"
     response="$(_post "$data" "$_ovh_url" "" "$m")"
   else
     response="$(_get "$_ovh_url")"
   fi
 
-  if [ "$?" != "0" ]; then
-    _err "error $ep"
+  if [ "$?" != "0" ] || _contains "$response" "INVALID_CREDENTIAL"; then
+    _err "error $response"
     return 1
   fi
   _debug2 response "$response"
diff --git a/dnsapi/dns_selectel.sh b/dnsapi/dns_selectel.sh
new file mode 100644
index 0000000..94252d8
--- /dev/null
+++ b/dnsapi/dns_selectel.sh
@@ -0,0 +1,161 @@
+#!/usr/bin/env sh
+
+#
+#SL_Key="sdfsdfsdfljlbjkljlkjsdfoiwje"
+#
+
+SL_Api="https://api.selectel.ru/domains/v1"
+
+########  Public functions #####################
+
+#Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_selectel_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  SL_Key="${SL_Key:-$(_readaccountconf_mutable SL_Key)}"
+
+  if [ -z "$SL_Key" ]; then
+    SL_Key=""
+    _err "You don't specify selectel.ru api key yet."
+    _err "Please create you key and try again."
+    return 1
+  fi
+
+  #save the api key to the account conf file.
+  _saveaccountconf_mutable SL_Key "$SL_Key"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _domain_id "$_domain_id"
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  _info "Adding record"
+  if _sl_rest POST "/$_domain_id/records/" "{\"type\": \"TXT\", \"ttl\": 60, \"name\": \"$fulldomain\", \"content\": \"$txtvalue\"}"; then
+    if _contains "$response" "$txtvalue" || _contains "$response" "record_already_exists"; then
+      _info "Added, OK"
+      return 0
+    fi
+  fi
+  _err "Add txt record error."
+  return 1
+}
+
+#fulldomain txtvalue
+dns_selectel_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  SL_Key="${SL_Key:-$(_readaccountconf_mutable SL_Key)}"
+
+  if [ -z "$SL_Key" ]; then
+    SL_Key=""
+    _err "You don't specify slectel api key yet."
+    _err "Please create you key and try again."
+    return 1
+  fi
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+  _debug _domain_id "$_domain_id"
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  _debug "Getting txt records"
+  _sl_rest GET "/${_domain_id}/records/"
+
+  if ! _contains "$response" "$txtvalue"; then
+    _err "Txt record not found"
+    return 1
+  fi
+
+  _record_seg="$(echo "$response" | _egrep_o "\"content\" *: *\"$txtvalue\"[^}]*}")"
+  _debug2 "_record_seg" "$_record_seg"
+  if [ -z "$_record_seg" ]; then
+    _err "can not find _record_seg"
+    return 1
+  fi
+
+  _record_id="$(echo "$_record_seg" | tr "," "\n" | tr "}" "\n" | tr -d " " | grep "\"id\"" | cut -d : -f 2)"
+  _debug2 "_record_id" "$_record_id"
+  if [ -z "$_record_id" ]; then
+    _err "can not find _record_id"
+    return 1
+  fi
+
+  if ! _sl_rest DELETE "/$_domain_id/records/$_record_id"; then
+    _err "Delete record error."
+    return 1
+  fi
+  return 0
+}
+
+####################  Private functions below ##################################
+#_acme-challenge.www.domain.com
+#returns
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+# _domain_id=sdjkglgdfewsdfg
+_get_root() {
+  domain=$1
+
+  if ! _sl_rest GET "/"; then
+    return 1
+  fi
+
+  i=2
+  p=1
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    if [ -z "$h" ]; then
+      #not valid
+      return 1
+    fi
+
+    if _contains "$response" "\"name\": \"$h\","; then
+      _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
+      _domain=$h
+      _debug "Getting domain id for $h"
+      if ! _sl_rest GET "/$h"; then
+        return 1
+      fi
+      _domain_id="$(echo "$response" | tr "," "\n" | tr "}" "\n" | tr -d " " | grep "\"id\":" | cut -d : -f 2)"
+      return 0
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
+
+_sl_rest() {
+  m=$1
+  ep="$2"
+  data="$3"
+  _debug "$ep"
+
+  export _H1="X-Token: $SL_Key"
+  export _H2="Content-Type: application/json"
+
+  if [ "$m" != "GET" ]; then
+    _debug data "$data"
+    response="$(_post "$data" "$SL_Api/$ep" "" "$m")"
+  else
+    response="$(_get "$SL_Api/$ep")"
+  fi
+
+  if [ "$?" != "0" ]; then
+    _err "error $ep"
+    return 1
+  fi
+  _debug2 response "$response"
+  return 0
+}
diff --git a/dnsapi/dns_yandex.sh b/dnsapi/dns_yandex.sh
index eb60d5a..7ebb15d 100755
--- a/dnsapi/dns_yandex.sh
+++ b/dnsapi/dns_yandex.sh
@@ -18,7 +18,6 @@ dns_yandex_add() {
 
   curDomain=$(_PDD_get_domain "$fulldomain")
   _debug "Found suitable domain in pdd: $curDomain"
-  curSubdomain="$(echo "${fulldomain}" | sed -e "s@.${curDomain}\$@@")"
   curData="domain=${curDomain}&type=TXT&subdomain=${curSubdomain}&ttl=360&content=${txtvalue}"
   curUri="https://pddimp.yandex.ru/api2/admin/dns/add"
   curResult="$(_post "${curData}" "${curUri}")"
@@ -36,7 +35,6 @@ dns_yandex_rm() {
 
   curDomain=$(_PDD_get_domain "$fulldomain")
   _debug "Found suitable domain in pdd: $curDomain"
-  curSubdomain="$(echo "${fulldomain}" | sed -e "s@.${curDomain}\$@@")"
 
   curUri="https://pddimp.yandex.ru/api2/admin/dns/del"
   curData="domain=${curDomain}&record_id=${record_id}"
@@ -61,7 +59,7 @@ _PDD_get_domain() {
       __last=1
     fi
 
-    __all_domains="$__all_domains $(echo "$res1" | sed -e "s@,@\n@g" | grep '"name"' | cut -d: -f2 | sed -e 's@"@@g')"
+    __all_domains="$__all_domains $(echo "$res1" | tr "," "\n" | grep '"name"' | cut -d: -f2 | sed -e 's@"@@g')"
 
     __page=$(_math $__page + 1)
   done
@@ -72,6 +70,8 @@ _PDD_get_domain() {
     _debug "finding zone for domain $__t"
     for d in $__all_domains; do
       if [ "$d" = "$__t" ]; then
+        p=$(_math $k - 1)
+        curSubdomain="$(echo "$fulldomain" | cut -d . -f "1-$p")"
         echo "$__t"
         return
       fi
@@ -98,7 +98,6 @@ pdd_get_record_id() {
 
   curDomain=$(_PDD_get_domain "$fulldomain")
   _debug "Found suitable domain in pdd: $curDomain"
-  curSubdomain="$(echo "${fulldomain}" | sed -e "s@.${curDomain}\$@@")"
 
   curUri="https://pddimp.yandex.ru/api2/admin/dns/list?domain=${curDomain}"
   curResult="$(_get "${curUri}" | _normalizeJson)"