diff --git a/sync_from_old_server.sh b/sync_from_old_server.sh
index 6627361..636823d 100755
--- a/sync_from_old_server.sh
+++ b/sync_from_old_server.sh
@@ -1,6 +1,8 @@
 #!/usr/bin/env bash
 
-ipv4_old="83.223.86.121"
+# give old IPv4 address here - its mandatory"
+# 
+ipv4_old=""
 old_server_ip=$ipv4_old
 
 tmp_err_msg=$(mktemp)
@@ -51,9 +53,9 @@ sync_vhost_dirs=""
 
 # - Only needed to replace ip-addresse in virtual host configuration files
 # -
-ipv4_new="83.223.90.20"
-ipv6_old="2a01:30:0:13:2e0:7bff:fe9a:b18a"
-ipv6_new="2a01:31:0:2::f851:1"
+ipv4_new=""
+ipv6_old=""
+ipv6_new=""
 
 
 # - Sync dehydrated cert directory
@@ -267,6 +269,7 @@ fi
 
 echo ""
 
+
 echononl "   Test ssh connection to $old_server_ip"
 ssh $old_server_ip "ls" > /dev/null 2> $tmp_err_msg
 if [[ $? -eq 0 ]];then
@@ -277,6 +280,60 @@ else
 fi
 
 
+echononl "   Backup file /root/bin/.ssh/config"
+if [[ -f "/root/.ssh/config" ]] ; then
+   mv "/root/.ssh/config " "/root/.ssh/config.${cur_date}"  > /dev/null 2> $tmp_err_msg
+   if [[ $? -eq 0 ]];then
+      echo_ok
+      ssh_config_exists=true
+   else
+      echo_failed
+      error "$(cat $tmp_err_msg)"
+
+      echononl "continue anyway [yes/no]: "
+      read OK
+      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
+      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
+         echononl "Wrong entry! - repeat [yes/no]: "
+         read OK
+      done
+      [[ $OK = "yes" ]] || fatal "Interupted by user"
+
+   fi
+else
+   echo_skipped
+   ssh_config_exists=false
+fi
+
+
+echononl "   Create temporary file \033[31m\033[1m/root/.ssh/config\033[m .."
+   cat <<EOF > "/root/.ssh/config"
+Host *
+   ControlMaster auto
+   ControlPath ~/.ssh/%r@%h:%p
+   ControlPersist 30
+   StrictHostKeyChecking no
+   LogLevel FATAL
+EOF
+if [[ $? -eq 0 ]];then
+   echo_ok
+   ssh_config_exists=true
+else
+   echo_failed
+   error "$(cat $tmp_err_msg)"
+
+   echononl "continue anyway [yes/no]: "
+   read OK
+   OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
+   while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
+      echononl "Wrong entry! - repeat [yes/no]: "
+      read OK
+   done
+   [[ $OK = "yes" ]] || fatal "Interupted by user"
+
+fi
+
+
 
 # - Create log directory
 # -
@@ -959,6 +1016,22 @@ else
 fi
 
 
+echononl " Restore file \033[31m\033[1m/root/.ssh/config\033[m .."
+if [[ -f "/root/.ssh/config.${cur_date}" ]] ; then
+   mv "/root/.ssh/config.${cur_date}" "/root/.ssh/config" > /dev/null 2> $tmp_err_msg
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $tmp_err_msg)"
+   fi
+else
+   echo_skipped
+fi
+
+
+
+
 echo -e "\n\n   \033[37m\033[1mRestart Services..\033[m\n"
 
 echononl "   (Re)start PureFTPd daemon (pure-ftpd)"