diff --git a/README.md b/README.md
index 0c5433e1..52e57998 100644
--- a/README.md
+++ b/README.md
@@ -315,15 +315,10 @@ You don't have to do anything manually!
 1. Azure DNS
 1. selectel.com(selectel.ru) DNS API
 1. zonomi.com 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
    (DigitalOcean, DNSimple, DNSMadeEasy, DNSPark, EasyDNS, Namesilo, NS1, PointHQ, Rage4 and Vultr etc.)
+1. DNSEver(https://www.dnsever.com)
 
-
-   
 **More APIs coming soon...**
 
 If your DNS provider is not on the supported list above, you can write your own DNS API script easily. If you do, please consider submitting a [Pull Request](https://github.com/Neilpang/acme.sh/pulls) and contribute it to the project.
diff --git a/acme.sh b/acme.sh
index ebddf81d..a4224fc9 100755
--- a/acme.sh
+++ b/acme.sh
@@ -2763,9 +2763,9 @@ _isRealNginxConf() {
 
         _left="$(sed -n "${_start_nn},99999p" "$2")"
         _debug2 _left "$_left"
-        if echo "$_left" | tr "\t" ' ' | grep -n "^ *server *" >/dev/null; then
-          _end=$(echo "$_left" | tr "\t" ' ' | grep -n "^ *server *" | _head_n 1)
-          _debug "_end" "$_end"
+        _end="$(echo "$_left" | tr "\t" ' ' | grep -n "^ *server *" | grep -v server_name | _head_n 1)"
+        _debug "_end" "$_end"
+        if [ "$_end" ]; then
           _end_n=$(echo "$_end" | cut -d : -f 1)
           _debug "_end_n" "$_end_n"
           _seg_n=$(echo "$_left" | sed -n "1,${_end_n}p")
diff --git a/dnsapi/README.md b/dnsapi/README.md
index 6d7bdfb5..f2f6a217 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -585,7 +585,7 @@ For issues, please report to https://github.com/non7top/acme.sh/issues.
 
 ## 31. Use Hurricane Electric
 
-Hurricane Electric doesn't have an API so just set your login credentials like so:
+Hurricane Electric (https://dns.he.net/) doesn't have an API so just set your login credentials like so:
 
 ```
 export HE_Username="yourusername"
diff --git a/dnsapi/dns_he.sh b/dnsapi/dns_he.sh
index 4d1973ad..7b854ead 100755
--- a/dnsapi/dns_he.sh
+++ b/dnsapi/dns_he.sh
@@ -19,14 +19,16 @@ dns_he_add() {
   _txt_value=$2
   _info "Using DNS-01 Hurricane Electric hook"
 
+  HE_Username="${HE_Username:-$(_readaccountconf_mutable HE_Username)}"
+  HE_Password="${HE_Password:-$(_readaccountconf_mutable HE_Password)}"
   if [ -z "$HE_Username" ] || [ -z "$HE_Password" ]; then
     HE_Username=
     HE_Password=
     _err "No auth details provided. Please set user credentials using the \$HE_Username and \$HE_Password envoronment variables."
     return 1
   fi
-  _saveaccountconf HE_Username "$HE_Username"
-  _saveaccountconf HE_Password "$HE_Password"
+  _saveaccountconf_mutable HE_Username "$HE_Username"
+  _saveaccountconf_mutable HE_Password "$HE_Password"
 
   # Fills in the $_zone_id
   _find_zone "$_full_domain" || return 1
@@ -62,7 +64,8 @@ dns_he_rm() {
   _full_domain=$1
   _txt_value=$2
   _info "Cleaning up after DNS-01 Hurricane Electric hook"
-
+  HE_Username="${HE_Username:-$(_readaccountconf_mutable HE_Username)}"
+  HE_Password="${HE_Password:-$(_readaccountconf_mutable HE_Password)}"
   # fills in the $_zone_id
   _find_zone "$_full_domain" || return 1
   _debug "Zone id \"$_zone_id\" will be used."