diff --git a/acme.sh b/acme.sh
index ceb02d3e..ce150f4a 100755
--- a/acme.sh
+++ b/acme.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-VER=2.4.2
+VER=2.4.3
 
 PROJECT_NAME="acme.sh"
 
@@ -169,7 +169,7 @@ _exists(){
     type "$cmd" >/dev/null 2>&1
   fi
   ret="$?"
-  _debug2 "$cmd exists=$ret"
+  _debug3 "$cmd exists=$ret"
   return $ret
 }
 
@@ -219,8 +219,8 @@ _h2b() {
   if _exists let ; then
     uselet="1"
   fi
-  _debug2 uselet "$uselet"
-  _debug2 _URGLY_PRINTF "$_URGLY_PRINTF"
+  _debug3 uselet "$uselet"
+  _debug3 _URGLY_PRINTF "$_URGLY_PRINTF"
   while true ; do
     if [ -z "$_URGLY_PRINTF" ] ; then
       h="$(printf $hex | cut -c $i-$j)"
@@ -336,7 +336,7 @@ _digest() {
   
   if [ "$alg" = "sha256" ] || [ "$alg" = "sha1" ]; then
     if [ "$outputhex" ] ; then
-      echo $(openssl dgst -$alg -hex | cut -d = -f 2)
+      openssl dgst -$alg -hex | cut -d = -f 2 | tr -d ' '
     else
       openssl dgst -$alg -binary | _base64
     fi
@@ -781,9 +781,9 @@ _post() {
     _CURL="$CURL"
     _debug "_CURL" "$_CURL"
     if [ "$needbase64" ] ; then
-      response="$($_CURL --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" --data "$body" "$url" | _base64)"
+      response="$($_CURL --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" --data "$body" "$url" | _base64)"
     else
-      response="$($_CURL --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" --data "$body" "$url" )"
+      response="$($_CURL --user-agent "$USER_AGENT" -X $httpmethod -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" --data "$body" "$url" )"
     fi
     _ret="$?"
     if [ "$_ret" != "0" ] ; then
@@ -797,15 +797,15 @@ _post() {
     _debug "WGET" "$WGET"
     if [ "$needbase64" ] ; then
       if [ "$httpmethod"="POST" ] ; then
-        response="$($WGET -S -O - --user-agent="$USER_AGENT" --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" "$url" 2>"$HTTP_HEADER" | _base64)"
       else
-        response="$($WGET -S -O - --user-agent="$USER_AGENT" --header "$_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" "$url" 2>"$HTTP_HEADER" | _base64)"
       fi
     else
       if [ "$httpmethod"="POST" ] ; then
-        response="$($WGET -S -O - --user-agent="$USER_AGENT" --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" "$url" 2>"$HTTP_HEADER")"
       else
-        response="$($WGET -S -O - --user-agent="$USER_AGENT" --header "$_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" "$url" 2>"$HTTP_HEADER")"
       fi
     fi
     _ret="$?"
@@ -841,9 +841,9 @@ _get() {
     fi
     _debug "_CURL" "$_CURL"
     if [ "$onlyheader" ] ; then
-      $_CURL -I --user-agent "$USER_AGENT" -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" $url
+      $_CURL -I --user-agent "$USER_AGENT" -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" $url
     else
-      $_CURL    --user-agent "$USER_AGENT" -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" $url
+      $_CURL    --user-agent "$USER_AGENT" -H "$_H1" -H "$_H2" -H "$_H3" -H "$_H4" -H "$_H5" $url
     fi
     ret=$?
     if [ "$ret" != "0" ] ; then
@@ -860,9 +860,9 @@ _get() {
     fi
     _debug "_WGET" "$_WGET"
     if [ "$onlyheader" ] ; then
-      $_WGET --user-agent="$USER_AGENT" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1" -S -O /dev/null $url 2>&1 | sed 's/^[ ]*//g'
+      $_WGET --user-agent="$USER_AGENT" --header "$_H5" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1" -S -O /dev/null $url 2>&1 | sed 's/^[ ]*//g'
     else
-      $_WGET --user-agent="$USER_AGENT" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1"    -O - $url
+      $_WGET --user-agent="$USER_AGENT" --header "$_H5" --header "$_H4" --header "$_H3" --header "$_H2" --header "$_H1"    -O - $url
     fi
     ret=$?
     if [ "$ret" != "0" ] ; then
diff --git a/dnsapi/dns_ovh.sh b/dnsapi/dns_ovh.sh
new file mode 100644
index 00000000..443aec6f
--- /dev/null
+++ b/dnsapi/dns_ovh.sh
@@ -0,0 +1,302 @@
+#!/usr/bin/env sh
+
+
+#Applcation Key
+#OVH_AK="sdfsdfsdfljlbjkljlkjsdfoiwje"
+#
+#Application Secret
+#OVH_AS="sdfsafsdfsdfdsfsdfsa"
+#
+#Consumer Key
+#OVH_CK="sdfsdfsdfsdfsdfdsf"
+
+
+#OVH_END_POINT=ovh-eu
+
+
+#'ovh-eu'
+OVH_EU='https://eu.api.ovh.com/1.0'
+
+#'ovh-ca': 
+OVH_CA='https://ca.api.ovh.com/1.0'
+
+#'kimsufi-eu'
+KSF_EU='https://eu.api.kimsufi.com/1.0'
+
+#'kimsufi-ca'
+KSF_CA='https://ca.api.kimsufi.com/1.0'
+
+#'soyoustart-eu'
+SYS_EU='https://eu.api.soyoustart.com/1.0'
+
+#'soyoustart-ca'
+SYS_CA='https://ca.api.soyoustart.com/1.0'
+
+#'runabove-ca'
+RAV_CA='https://api.runabove.com/1.0'
+
+
+wiki="https://github.com/Neilpang/acme.sh/wiki/How-to-use-OVH-domain-api"
+
+ovh_success="https://github.com/Neilpang/acme.sh/wiki/OVH-Success"
+
+
+
+_ovh_get_api() {
+  _ogaep="$1"
+
+  case "${_ogaep}" in
+    
+    ovh-eu|ovheu)
+        printf "%s" $OVH_EU
+        return
+        ;;
+    ovh-ca|ovhca)
+        printf "%s" $OVH_CA
+        return
+        ;;
+    kimsufi-eu|kimsufieu)
+        printf "%s" $KSF_EU
+        return
+        ;;
+    kimsufi-ca|kimsufica)
+        printf "%s" $KSF_CA
+        return
+        ;;
+    soyoustart-eu|soyoustarteu)
+        printf "%s" $SYS_EU
+        return
+        ;;
+    soyoustart-ca|soyoustartca)
+        printf "%s" $SYS_CA
+        return
+        ;;      
+    runabove-ca|runaboveca)
+        printf "%s" $RAV_CA
+        return
+        ;;       
+        
+        
+    *)
+        _err "Unknown parameter : $1"
+        return 1
+        ;;
+    esac
+}
+
+########  Public functions #####################
+
+#Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_ovh_add(){
+  fulldomain=$1
+  txtvalue=$2
+  
+  if [ -z "$OVH_AK" ] || [ -z "$OVH_AS" ] ; then
+    _err "You don't specify OVH application key and application secret yet."
+    _err "Please create you key and try again."
+    return 1
+  fi
+  
+  #save the api key and email to the account conf file.
+  _saveaccountconf OVH_AK "$OVH_AK"
+  _saveaccountconf OVH_AS "$OVH_AS"
+  
+  
+  if [ -z "$OVH_END_POINT" ] ; then
+    OVH_END_POINT="ovh-eu"
+  fi
+  _info "Using OVH endpoint: $OVH_END_POINT"
+  if [ "$OVH_END_POINT" != "ovh-eu" ] ; then
+  _saveaccountconf OVH_END_POINT "$OVH_END_POINT"
+  fi
+  
+  OVH_API="$(_ovh_get_api $OVH_END_POINT )"
+  _debug OVH_API "$OVH_API"
+
+  if [ -z "$OVH_CK" ] ; then
+    _info "OVH consumer key is empty, Let's get one:"
+    if ! _ovh_authentication ; then
+      _err "Can not get consumer key."
+    fi
+    #return and wait for retry.
+    return 1;
+  fi
+  
+  
+  _info "Checking authentication"
+  
+  response="$(_ovh_rest GET "domain/")"
+  if _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."
+  
+  _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"
+  _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
+    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
+  
+}
+
+
+####################  Private functions bellow ##################################
+
+_ovh_authentication() {
+  
+  _H1="X-Ovh-Application: $OVH_AK"
+  _H2="Content-type: application/json"
+  _H3=""
+  _H4=""
+  
+  _ovhdata='{"accessRules": [{"method": "GET","path": "/*"},{"method": "POST","path": "/*"},{"method": "PUT","path": "/*"},{"method": "DELETE","path": "/*"}],"redirection":"'$ovh_success'"}'
+  
+  response="$(_post "$_ovhdata" "$OVH_API/auth/credential")"
+  _debug3 response "$response"
+  validationUrl="$(echo "$response" | _egrep_o "validationUrl\":\"[^\"]*\"" | _egrep_o "http.*\"" | tr -d '"')"
+  if [ -z "$validationUrl" ] ; then
+    _err "Unable to get validationUrl"
+    return 1
+  fi
+  _debug validationUrl "$validationUrl"
+  
+  consumerKey="$(echo "$response" | _egrep_o "consumerKey\":\"[^\"]*\"" | cut -d : -f 2 | tr -d '"')"
+  if [ -z "$consumerKey" ] ; then
+    _err "Unable to get consumerKey"
+    return 1
+  fi
+  _debug consumerKey "$consumerKey"
+  
+  OVH_CK="$consumerKey"
+  _saveaccountconf OVH_CK "$OVH_CK"
+  
+  _info "Please open this link to do authentication: $(__green "$validationUrl" )"
+
+  _info "Here is a guide for you: $(__green "$wiki" )"
+  _info "Please retry after the authentication is done."
+
+}
+
+
+#_acme-challenge.www.domain.com
+#returns
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+# _domain_id=sdjkglgdfewsdfg
+_get_root() {
+  domain=$1
+  i=2
+  p=1
+  while [ '1' ] ; do
+    h=$(printf $domain | cut -d . -f $i-100)
+    if [ -z "$h" ] ; then
+      #not valid
+      return 1;
+    fi
+    
+    if ! _ovh_rest GET "domain/zone/$h" ; then
+      return 1
+    fi
+    
+    if ! _contains "$response" "This service does not exist" >/dev/null ; then
+      _sub_domain=$(printf $domain | cut -d . -f 1-$p)
+      _domain=$h
+      return 0
+    fi
+    p=$i
+    i=$(expr $i + 1)
+  done
+  return 1
+}
+
+_ovh_timestamp() {
+  _H1=""
+  _H2=""
+  _H3=""
+  _H4=""
+  _H5=""
+  _get "$OVH_API/auth/time" "" 30
+}
+
+_ovh_rest() {
+  m=$1
+  ep="$2"
+  data="$3"
+  _debug $ep
+  
+  
+  _ovh_url="$OVH_API/$ep"
+  _debug2 _ovh_url "$_ovh_url"
+  _ovh_t="$(_ovh_timestamp)"
+  _debug2 _ovh_t "$_ovh_t"
+  _ovh_p="$OVH_AS+$OVH_CK+$m+$_ovh_url+$data+$_ovh_t"
+  _debug _ovh_p "$_ovh_p"
+  _ovh_hex="$(printf "%s" "$_ovh_p" | _digest sha1 hex)"
+  _debug2 _ovh_hex "$_ovh_hex"
+  
+
+  _H1="X-Ovh-Application: $OVH_AK"
+  _H2="X-Ovh-Signature: \$1\$$_ovh_hex"
+  _debug2 _H2 "$_H2"
+  _H3="X-Ovh-Timestamp: $_ovh_t"
+  _H4="X-Ovh-Consumer: $OVH_CK"
+  _H5="Content-Type: application/json;charset=utf-8"
+  if [ "$data" ] || [ "$m" = "POST" ] || [ "$m" = "PUT" ] ; then
+    _debug data "$data"
+    response="$(_post "$data" "$_ovh_url" "" $m)"
+  else
+    response="$(_get "$_ovh_url")"
+  fi
+  
+  if [ "$?" != "0" ] ; then
+    _err "error $ep"
+    return 1
+  fi
+  _debug2 response "$response"
+  return 0
+}
+
+