diff --git a/acme.sh b/acme.sh
index 260733a2..37c625d2 100755
--- a/acme.sh
+++ b/acme.sh
@@ -2332,6 +2332,26 @@ _readdomainconf() {
   _read_conf "$DOMAIN_CONF" "$1"
 }
 
+#_migratedomainconf   oldkey  newkey  base64encode
+_migratedomainconf() {
+  _old_key="$1"
+  _new_key="$2"
+  _b64encode="$3"
+  _value=$(_readdomainconf "$_old_key")
+  if [ -z "$_value" ]; then
+    return 1 # oldkey is not found
+  fi
+  _savedomainconf "$_new_key" "$_value" "$_b64encode"
+  _cleardomainconf "$_old_key"
+  _debug "Domain config $_old_key has been migrated to $_new_key"
+}
+
+#_migratedeployconf   oldkey  newkey  base64encode
+_migratedeployconf() {
+  _migratedomainconf "$1" "SAVED_$2" "$3" ||
+  _migratedomainconf "SAVED_$1" "SAVED_$2" "$3" # try only when oldkey itself is not found
+}
+
 #key  value  base64encode
 _savedeployconf() {
   _savedomainconf "SAVED_$1" "$2" "$3"
diff --git a/deploy/ssh.sh b/deploy/ssh.sh
index 7d9e82e8..73d71597 100644
--- a/deploy/ssh.sh
+++ b/deploy/ssh.sh
@@ -23,8 +23,8 @@
 # export DEPLOY_SSH_BACKUP=""  # yes or no, default to yes or previously saved value
 # export DEPLOY_SSH_BACKUP_PATH=".acme_ssh_deploy"  # path on remote system. Defaults to .acme_ssh_deploy
 # export DEPLOY_SSH_MULTI_CALL=""  # yes or no, default to no or previously saved value
-# export DEPLOY_SSH_USE_SCP="" yes or no , default to no
-# export DEPLOY_SSH_SCP_CMD="" defaults to "scp -q "
+# export DEPLOY_SSH_USE_SCP="" yes or no, default to no
+# export DEPLOY_SSH_SCP_CMD="" defaults to "scp -q"
 #
 ########  Public functions #####################
 
@@ -44,110 +44,134 @@ ssh_deploy() {
   _debug _cfullchain "$_cfullchain"
 
   # USER is required to login by SSH to remote host.
+  _migratedeployconf Le_Deploy_ssh_user DEPLOY_SSH_USER
   _getdeployconf DEPLOY_SSH_USER
   _debug2 DEPLOY_SSH_USER "$DEPLOY_SSH_USER"
   if [ -z "$DEPLOY_SSH_USER" ]; then
-    if [ -z "$Le_Deploy_ssh_user" ]; then
-      _err "DEPLOY_SSH_USER not defined."
-      return 1
-    fi
-  else
-    Le_Deploy_ssh_user="$DEPLOY_SSH_USER"
-    _savedeployconf Le_Deploy_ssh_user "$Le_Deploy_ssh_user"
+    _err "DEPLOY_SSH_USER not defined."
+    return 1
   fi
+  _savedeployconf DEPLOY_SSH_USER "$DEPLOY_SSH_USER"
 
   # SERVER is optional. If not provided then use _cdomain
+  _migratedeployconf Le_Deploy_ssh_server DEPLOY_SSH_SERVER
   _getdeployconf DEPLOY_SSH_SERVER
   _debug2 DEPLOY_SSH_SERVER "$DEPLOY_SSH_SERVER"
-  if [ -n "$DEPLOY_SSH_SERVER" ]; then
-    Le_Deploy_ssh_server="$DEPLOY_SSH_SERVER"
-    _savedeployconf Le_Deploy_ssh_server "$Le_Deploy_ssh_server"
-  elif [ -z "$Le_Deploy_ssh_server" ]; then
-    Le_Deploy_ssh_server="$_cdomain"
+  if [ -z "$DEPLOY_SSH_SERVER" ]; then
+    DEPLOY_SSH_SERVER="$_cdomain"
   fi
+  _savedeployconf DEPLOY_SSH_SERVER "$DEPLOY_SSH_SERVER"
 
   # CMD is optional. If not provided then use ssh
+  _migratedeployconf Le_Deploy_ssh_cmd DEPLOY_SSH_CMD
   _getdeployconf DEPLOY_SSH_CMD
   _debug2 DEPLOY_SSH_CMD "$DEPLOY_SSH_CMD"
-  if [ -n "$DEPLOY_SSH_CMD" ]; then
-    Le_Deploy_ssh_cmd="$DEPLOY_SSH_CMD"
-    _savedeployconf Le_Deploy_ssh_cmd "$Le_Deploy_ssh_cmd"
-  elif [ -z "$Le_Deploy_ssh_cmd" ]; then
-    Le_Deploy_ssh_cmd="ssh -T"
-  fi
-
-  # USE_SCP is optional. If not provided then default to previously saved
-  # value (which may be undefined... equivalent to "no").
-  if [ "$DEPLOY_SSH_USE_SCP" = "yes" ]; then
-    Le_Deploy_ssh_use_scp="yes"
-    _savedeployconf Le_Deploy_ssh_use_scp "$Le_Deploy_ssh_use_scp"
-  elif [ "$DEPLOY_SSH_USE_SCP" = "no" ]; then
-    Le_Deploy_ssh_use_scp=""
-    _cleardomainconf Le_Deploy_ssh_use_scp
-  fi
-
-  # SCP_CMD is optional. If not provided then use scp
-  if [ -n "$DEPLOY_SSH_SCP_CMD" ]; then
-    Le_Deploy_ssh_scp_cmd="$DEPLOY_SSH_SCP_CMD"
-    _savedeployconf Le_Deploy_ssh_scp_cmd "$Le_Deploy_ssh_scp_cmd"
-  elif [ -z "$Le_Deploy_ssh_scp_cmd" ]; then
-    Le_Deploy_ssh_scp_cmd="scp -q"
+  if [ -z "$DEPLOY_SSH_CMD" ]; then
+    DEPLOY_SSH_CMD="ssh -T"
   fi
+  _savedeployconf DEPLOY_SSH_CMD "$DEPLOY_SSH_CMD"
 
   # BACKUP is optional. If not provided then default to previously saved value or yes.
+  _migratedeployconf Le_Deploy_ssh_backup DEPLOY_SSH_BACKUP
   _getdeployconf DEPLOY_SSH_BACKUP
   _debug2 DEPLOY_SSH_BACKUP "$DEPLOY_SSH_BACKUP"
-  if [ "$DEPLOY_SSH_BACKUP" = "no" ]; then
-    Le_Deploy_ssh_backup="no"
-  elif [ -z "$Le_Deploy_ssh_backup" ] || [ "$DEPLOY_SSH_BACKUP" = "yes" ]; then
-    Le_Deploy_ssh_backup="yes"
+  if [ -z "$DEPLOY_SSH_BACKUP" ]; then
+    DEPLOY_SSH_BACKUP="yes"
   fi
-  _savedeployconf Le_Deploy_ssh_backup "$Le_Deploy_ssh_backup"
+  _savedeployconf DEPLOY_SSH_BACKUP "$DEPLOY_SSH_BACKUP"
 
   # BACKUP_PATH is optional. If not provided then default to previously saved value or .acme_ssh_deploy
+  _migratedeployconf Le_Deploy_ssh_backup_path DEPLOY_SSH_BACKUP_PATH
   _getdeployconf DEPLOY_SSH_BACKUP_PATH
   _debug2 DEPLOY_SSH_BACKUP_PATH "$DEPLOY_SSH_BACKUP_PATH"
-  if [ -n "$DEPLOY_SSH_BACKUP_PATH" ]; then
-    Le_Deploy_ssh_backup_path="$DEPLOY_SSH_BACKUP_PATH"
-  elif [ -z "$Le_Deploy_ssh_backup_path" ]; then
-    Le_Deploy_ssh_backup_path=".acme_ssh_deploy"
+  if [ -z "$DEPLOY_SSH_BACKUP_PATH" ]; then
+    DEPLOY_SSH_BACKUP_PATH=".acme_ssh_deploy"
   fi
-  _savedeployconf Le_Deploy_ssh_backup_path "$Le_Deploy_ssh_backup_path"
+  _savedeployconf DEPLOY_SSH_BACKUP_PATH "$DEPLOY_SSH_BACKUP_PATH"
 
   # MULTI_CALL is optional. If not provided then default to previously saved
   # value (which may be undefined... equivalent to "no").
+  _migratedeployconf Le_Deploy_ssh_multi_call DEPLOY_SSH_MULTI_CALL
   _getdeployconf DEPLOY_SSH_MULTI_CALL
   _debug2 DEPLOY_SSH_MULTI_CALL "$DEPLOY_SSH_MULTI_CALL"
-  if [ "$DEPLOY_SSH_MULTI_CALL" = "yes" ]; then
-    Le_Deploy_ssh_multi_call="yes"
-    _savedeployconf Le_Deploy_ssh_multi_call "$Le_Deploy_ssh_multi_call"
-  elif [ "$DEPLOY_SSH_MULTI_CALL" = "no" ]; then
-    Le_Deploy_ssh_multi_call=""
-    _cleardomainconf Le_Deploy_ssh_multi_call
+  if [ -z "$DEPLOY_SSH_MULTI_CALL" ]; then
+    DEPLOY_SSH_MULTI_CALL="no"
+  fi
+  _savedeployconf DEPLOY_SSH_MULTI_CALL "$DEPLOY_SSH_MULTI_CALL"
+
+  # KEYFILE is optional.
+  # If provided then private key will be copied to provided filename.
+  _migratedeployconf Le_Deploy_ssh_keyfile DEPLOY_SSH_KEYFILE
+  _getdeployconf DEPLOY_SSH_KEYFILE
+  _debug2 DEPLOY_SSH_KEYFILE "$DEPLOY_SSH_KEYFILE"
+  if [ -n "$DEPLOY_SSH_KEYFILE" ]; then
+    _savedeployconf DEPLOY_SSH_KEYFILE "$DEPLOY_SSH_KEYFILE"
+  fi
+
+  # CERTFILE is optional.
+  # If provided then certificate will be copied or appended to provided filename.
+  _migratedeployconf Le_Deploy_ssh_certfile DEPLOY_SSH_CERTFILE
+  _getdeployconf DEPLOY_SSH_CERTFILE
+  _debug2 DEPLOY_SSH_CERTFILE "$DEPLOY_SSH_CERTFILE"
+  if [ -n "$DEPLOY_SSH_CERTFILE" ]; then
+    _savedeployconf DEPLOY_SSH_CERTFILE "$DEPLOY_SSH_CERTFILE"
+  fi
+
+  # CAFILE is optional.
+  # If provided then CA intermediate certificate will be copied or appended to provided filename.
+  _migratedeployconf Le_Deploy_ssh_cafile DEPLOY_SSH_CAFILE
+  _getdeployconf DEPLOY_SSH_CAFILE
+  _debug2 DEPLOY_SSH_CAFILE "$DEPLOY_SSH_CAFILE"
+  if [ -n "$DEPLOY_SSH_CAFILE" ]; then
+    _savedeployconf DEPLOY_SSH_CAFILE "$DEPLOY_SSH_CAFILE"
+  fi
+
+  # FULLCHAIN is optional.
+  # If provided then fullchain certificate will be copied or appended to provided filename.
+  _migratedeployconf Le_Deploy_ssh_fullchain DEPLOY_SSH_FULLCHAIN
+  _getdeployconf DEPLOY_SSH_FULLCHAIN
+  _debug2 DEPLOY_SSH_FULLCHAIN "$DEPLOY_SSH_FULLCHAIN"
+  if [ -n "$DEPLOY_SSH_FULLCHAIN" ]; then
+    _savedeployconf DEPLOY_SSH_FULLCHAIN "$DEPLOY_SSH_FULLCHAIN"
+  fi
+
+  # REMOTE_CMD is optional.
+  # If provided then this command will be executed on remote host.
+  _migratedeployconf Le_Deploy_ssh_remote_cmd DEPLOY_SSH_REMOTE_CMD
+  _getdeployconf DEPLOY_SSH_REMOTE_CMD
+  _debug2 DEPLOY_SSH_REMOTE_CMD "$DEPLOY_SSH_REMOTE_CMD"
+  if [ -n "$DEPLOY_SSH_REMOTE_CMD" ]; then
+    _savedeployconf DEPLOY_SSH_REMOTE_CMD "$DEPLOY_SSH_REMOTE_CMD"
   fi
 
   # USE_SCP is optional. If not provided then default to previously saved
   # value (which may be undefined... equivalent to "no").
-  if [ "$DEPLOY_SSH_USE_SCP" = "yes" ]; then
-    Le_Deploy_ssh_use_scp="yes"
-    _savedeployconf Le_Deploy_ssh_use_scp "$Le_Deploy_ssh_use_scp"
-    Le_Deploy_ssh_multi_call="yes"
-    _savedeployconf Le_Deploy_ssh_multi_call "$Le_Deploy_ssh_multi_call"
-  elif [ "$DEPLOY_SSH_USE_SCP" = "no" ]; then
-    Le_Deploy_ssh_use_scp=""
-    _cleardomainconf Le_Deploy_ssh_use_scp
+  _getdeployconf DEPLOY_SSH_USE_SCP
+  _debug2 DEPLOY_SSH_USE_SCP "$DEPLOY_SSH_USE_SCP"
+  if [ -z "$DEPLOY_SSH_USE_SCP" ]; then
+    DEPLOY_SSH_USE_SCP="no"
   fi
+  _savedeployconf DEPLOY_SSH_USE_SCP "$DEPLOY_SSH_USE_SCP"
 
   # SCP_CMD is optional. If not provided then use scp
-  if [ -n "$DEPLOY_SSH_SCP_CMD" ]; then
-    Le_Deploy_ssh_scp_cmd="$DEPLOY_SSH_SCP_CMD"
-    _savedeployconf Le_Deploy_ssh_scp_cmd "$Le_Deploy_ssh_scp_cmd"
-  elif [ -z "$Le_Deploy_ssh_scp_cmd" ]; then
-    Le_Deploy_ssh_scp_cmd="scp -T -q "
+  _getdeployconf DEPLOY_SSH_SCP_CMD
+  _debug2 DEPLOY_SSH_SCP_CMD "$DEPLOY_SSH_SCP_CMD"
+  if [ -z "$DEPLOY_SSH_SCP_CMD" ]; then
+    DEPLOY_SSH_SCP_CMD="scp -q"
+  fi
+  _savedeployconf DEPLOY_SSH_SCP_CMD "$DEPLOY_SSH_SCP_CMD"
+
+  if [ "$DEPLOY_SSH_USE_SCP" = "yes" ]; then
+    DEPLOY_SSH_MULTI_CALL="yes"
+    _info "Using scp as alternate method for copying files. Multicall Mode is implicit"
+  elif [ "$DEPLOY_SSH_MULTI_CALL" = "yes" ]; then
+    _info "Using MULTI_CALL mode... Required commands sent in multiple calls to remote host"
+  else
+    _info "Required commands batched and sent in single call to remote host"
   fi
 
-  _deploy_ssh_servers=$Le_Deploy_ssh_server
-  for Le_Deploy_ssh_server in $_deploy_ssh_servers; do
+  _deploy_ssh_servers=$DEPLOY_SSH_SERVER
+  for DEPLOY_SSH_SERVER in $_deploy_ssh_servers; do
     _ssh_deploy
   done
 }
@@ -161,20 +185,10 @@ _ssh_deploy() {
   _local_ca_file=""
   _local_full_file=""
 
-  _info "Deploy certificates to remote server $Le_Deploy_ssh_user@$Le_Deploy_ssh_server"
-  if [ "$Le_Deploy_ssh_use_scp" = "yes" ]; then
-    _info "Using scp as alternate method for copying files. Multicall Mode is implicit"
-    Le_Deploy_ssh_multi_call="yes"
-    _savedeployconf Le_Deploy_ssh_multi_call "$Le_Deploy_ssh_multi_call"
-  fi
-  if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
-    _info "Using MULTI_CALL mode... Required commands sent in multiple calls to remote host"
-  else
-    _info "Required commands batched and sent in single call to remote host"
-  fi
+  _info "Deploy certificates to remote server $DEPLOY_SSH_USER@$DEPLOY_SSH_SERVER"
 
-  if [ "$Le_Deploy_ssh_backup" = "yes" ]; then
-    _backupprefix="$Le_Deploy_ssh_backup_path/$_cdomain-backup"
+  if [ "$DEPLOY_SSH_BACKUP" = "yes" ]; then
+    _backupprefix="$DEPLOY_SSH_BACKUP_PATH/$_cdomain-backup"
     _backupdir="$_backupprefix-$(_utc_date | tr ' ' '-')"
     # run cleanup on the backup directory, erase all older
     # than 180 days (15552000 seconds).
@@ -186,7 +200,7 @@ then rm -rf \"\$fn\"; echo \"Backup \$fn deleted as older than 180 days\"; fi; d
     _cmdstr="mkdir -p $_backupdir; $_cmdstr"
     _info "Backup of old certificate files will be placed in remote directory $_backupdir"
     _info "Backup directories erased after 180 days."
-    if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
+    if [ "$DEPLOY_SSH_MULTI_CALL" = "yes" ]; then
       if ! _ssh_remote_cmd "$_cmdstr"; then
         return $_err_code
       fi
@@ -194,19 +208,11 @@ then rm -rf \"\$fn\"; echo \"Backup \$fn deleted as older than 180 days\"; fi; d
     fi
   fi
 
-  # KEYFILE is optional.
-  # If provided then private key will be copied to provided filename.
-  _getdeployconf DEPLOY_SSH_KEYFILE
-  _debug2 DEPLOY_SSH_KEYFILE "$DEPLOY_SSH_KEYFILE"
   if [ -n "$DEPLOY_SSH_KEYFILE" ]; then
-    Le_Deploy_ssh_keyfile="$DEPLOY_SSH_KEYFILE"
-    _savedeployconf Le_Deploy_ssh_keyfile "$Le_Deploy_ssh_keyfile"
-  fi
-  if [ -n "$Le_Deploy_ssh_keyfile" ]; then
-    if [ "$Le_Deploy_ssh_backup" = "yes" ]; then
+    if [ "$DEPLOY_SSH_BACKUP" = "yes" ]; then
       # backup file we are about to overwrite.
-      _cmdstr="$_cmdstr cp $Le_Deploy_ssh_keyfile $_backupdir >/dev/null;"
-      if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
+      _cmdstr="$_cmdstr cp $DEPLOY_SSH_KEYFILE $_backupdir >/dev/null;"
+      if [ "$DEPLOY_SSH_MULTI_CALL" = "yes" ]; then
         if ! _ssh_remote_cmd "$_cmdstr"; then
           return $_err_code
         fi
@@ -215,15 +221,16 @@ then rm -rf \"\$fn\"; echo \"Backup \$fn deleted as older than 180 days\"; fi; d
     fi
 
     # copy new key into file.
-    if [ "$Le_Deploy_ssh_use_scp" = "yes" ]; then
+    if [ "$DEPLOY_SSH_USE_SCP" = "yes" ]; then
       # scp the file
-      if ! _scp_remote_cmd "$_ckey" "$Le_Deploy_ssh_keyfile"; then
+      if ! _scp_remote_cmd "$_ckey" "$DEPLOY_SSH_KEYFILE"; then
         return $_err_code
       fi
     else
-      _cmdstr="$_cmdstr echo \"$(cat "$_ckey")\" > $Le_Deploy_ssh_keyfile;"
-      _info "will copy private key to remote file $Le_Deploy_ssh_keyfile"
-      if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
+      # ssh echo to the file
+      _cmdstr="$_cmdstr echo \"$(cat "$_ckey")\" > $DEPLOY_SSH_KEYFILE;"
+      _info "will copy private key to remote file $DEPLOY_SSH_KEYFILE"
+      if [ "$DEPLOY_SSH_MULTI_CALL" = "yes" ]; then
         if ! _ssh_remote_cmd "$_cmdstr"; then
           return $_err_code
         fi
@@ -232,48 +239,38 @@ then rm -rf \"\$fn\"; echo \"Backup \$fn deleted as older than 180 days\"; fi; d
     fi
   fi
 
-  # CERTFILE is optional.
-  # If provided then certificate will be copied or appended to provided filename.
-  _getdeployconf DEPLOY_SSH_CERTFILE
-  _debug2 DEPLOY_SSH_CERTFILE "$DEPLOY_SSH_CERTFILE"
   if [ -n "$DEPLOY_SSH_CERTFILE" ]; then
-    Le_Deploy_ssh_certfile="$DEPLOY_SSH_CERTFILE"
-    _savedeployconf Le_Deploy_ssh_certfile "$Le_Deploy_ssh_certfile"
-  fi
-  if [ -n "$Le_Deploy_ssh_certfile" ]; then
     _pipe=">"
-    if [ "$Le_Deploy_ssh_certfile" = "$Le_Deploy_ssh_keyfile" ]; then
+    if [ "$DEPLOY_SSH_CERTFILE" = "$DEPLOY_SSH_KEYFILE" ]; then
       # if filename is same as previous file then append.
       _pipe=">>"
+    elif [ "$DEPLOY_SSH_BACKUP" = "yes" ]; then
+      # backup file we are about to overwrite.
+      _cmdstr="$_cmdstr cp $DEPLOY_SSH_CERTFILE $_backupdir >/dev/null;"
+      if [ "$DEPLOY_SSH_MULTI_CALL" = "yes" ]; then
+        if ! _ssh_remote_cmd "$_cmdstr"; then
+          return $_err_code
+        fi
+        _cmdstr=""
+      fi
+    fi
+
+    # copy new certificate into file.
+    if [ "$DEPLOY_SSH_USE_SCP" = "yes" ]; then
+      # scp the file
       _local_cert_file=$(_mktemp)
-      cat "$_ckey" >"$_local_cert_file"
-      cat "$_ccert" >>"$_local_cert_file"
-    elif [ "$Le_Deploy_ssh_backup" = "yes" ]; then
-      # backup file we are about to overwrite.
-      _cmdstr="$_cmdstr cp $Le_Deploy_ssh_certfile $_backupdir >/dev/null;"
-      if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
-        if ! _ssh_remote_cmd "$_cmdstr"; then
-          return $_err_code
-        fi
-        _cmdstr=""
+      if [ "$DEPLOY_SSH_CERTFILE" = "$DEPLOY_SSH_KEYFILE" ]; then
+        cat "$_ckey" >> "$_local_cert_file"
       fi
-    fi
-
-    if [ "$Le_Deploy_ssh_use_scp" = "yes" ]; then
-      if [ -n "$_local_cert_file" ]; then
-        if ! _scp_remote_cmd "$_local_cert_file" "$Le_Deploy_ssh_certfile"; then
-          return $_err_code
-        fi
-      else
-        if ! _scp_remote_cmd "$_ccert" "$Le_Deploy_ssh_certfile"; then
-          return $_err_code
-        fi
+      cat "$_ccert" >> "$_local_cert_file"
+      if ! _scp_remote_cmd "$_local_cert_file" "$DEPLOY_SSH_CERTFILE"; then
+        return $_err_code
       fi
     else
-      # copy new certificate into file.
-      _cmdstr="$_cmdstr echo \"$(cat "$_ccert")\" $_pipe $Le_Deploy_ssh_certfile;"
-      _info "will copy certificate to remote file $Le_Deploy_ssh_certfile"
-      if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
+      # ssh echo to the file
+      _cmdstr="$_cmdstr echo \"$(cat "$_ccert")\" $_pipe $DEPLOY_SSH_CERTFILE;"
+      _info "will copy certificate to remote file $DEPLOY_SSH_CERTFILE"
+      if [ "$DEPLOY_SSH_MULTI_CALL" = "yes" ]; then
         if ! _ssh_remote_cmd "$_cmdstr"; then
           return $_err_code
         fi
@@ -282,56 +279,42 @@ then rm -rf \"\$fn\"; echo \"Backup \$fn deleted as older than 180 days\"; fi; d
     fi
   fi
 
-  # CAFILE is optional.
-  # If provided then CA intermediate certificate will be copied or appended to provided filename.
-  _getdeployconf DEPLOY_SSH_CAFILE
-  _debug2 DEPLOY_SSH_CAFILE "$DEPLOY_SSH_CAFILE"
   if [ -n "$DEPLOY_SSH_CAFILE" ]; then
-    Le_Deploy_ssh_cafile="$DEPLOY_SSH_CAFILE"
-    _savedeployconf Le_Deploy_ssh_cafile "$Le_Deploy_ssh_cafile"
-  fi
-  if [ -n "$Le_Deploy_ssh_cafile" ]; then
     _pipe=">"
-    if [ "$Le_Deploy_ssh_cafile" = "$Le_Deploy_ssh_keyfile" ] ||
-      [ "$Le_Deploy_ssh_cafile" = "$Le_Deploy_ssh_certfile" ]; then
+    if [ "$DEPLOY_SSH_CAFILE" = "$DEPLOY_SSH_KEYFILE" ] ||
+      [ "$DEPLOY_SSH_CAFILE" = "$DEPLOY_SSH_CERTFILE" ]; then
       # if filename is same as previous file then append.
       _pipe=">>"
+    elif [ "$DEPLOY_SSH_BACKUP" = "yes" ]; then
+      # backup file we are about to overwrite.
+      _cmdstr="$_cmdstr cp $DEPLOY_SSH_CAFILE $_backupdir >/dev/null;"
+      if [ "$DEPLOY_SSH_MULTI_CALL" = "yes" ]; then
+        if ! _ssh_remote_cmd "$_cmdstr"; then
+          return $_err_code
+        fi
+        _cmdstr=""
+      fi
+    fi
+
+    # copy new certificate into file.
+    if [ "$DEPLOY_SSH_USE_SCP" = "yes" ]; then
+      # scp the file
       _local_ca_file=$(_mktemp)
-      if [ "$Le_Deploy_ssh_cafile" = "$Le_Deploy_ssh_keyfile" ]; then
-        cat "$_ckey" >>"$_local_ca_file"
+      if [ "$DEPLOY_SSH_CAFILE" = "$DEPLOY_SSH_KEYFILE" ]; then
+        cat "$_ckey" >> "$_local_ca_file"
       fi
-      if [ "$Le_Deploy_ssh_cafile" = "$Le_Deploy_ssh_certfile" ]; then
-        cat "$_ccert" >>"$_local_ca_file"
+      if [ "$DEPLOY_SSH_CAFILE" = "$DEPLOY_SSH_CERTFILE" ]; then
+        cat "$_ccert" >> "$_local_ca_file"
       fi
-
       cat "$_cca" >>"$_local_ca_file"
-
-    elif [ "$Le_Deploy_ssh_backup" = "yes" ]; then
-      # backup file we are about to overwrite.
-      _cmdstr="$_cmdstr cp $Le_Deploy_ssh_cafile $_backupdir >/dev/null;"
-      if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
-        if ! _ssh_remote_cmd "$_cmdstr"; then
-          return $_err_code
-        fi
-        _cmdstr=""
-      fi
-    fi
-
-    if [ "$Le_Deploy_ssh_use_scp" = "yes" ]; then
-      if [ -n "$_local_ca_file" ]; then
-        if ! _scp_remote_cmd "$_local_ca_file" "$Le_Deploy_ssh_cafile"; then
-          return $_err_code
-        fi
-      else
-        if ! _scp_remote_cmd "$_cca" "$Le_Deploy_ssh_cafile"; then
-          return $_err_code
-        fi
+      if ! _scp_remote_cmd "$_local_ca_file" "$DEPLOY_SSH_CAFILE"; then
+        return $_err_code
       fi
     else
-      # copy new certificate into file.
-      _cmdstr="$_cmdstr echo \"$(cat "$_cca")\" $_pipe $Le_Deploy_ssh_cafile;"
-      _info "will copy CA file to remote file $Le_Deploy_ssh_cafile"
-      if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
+      # ssh echo to the file
+      _cmdstr="$_cmdstr echo \"$(cat "$_cca")\" $_pipe $DEPLOY_SSH_CAFILE;"
+      _info "will copy CA file to remote file $DEPLOY_SSH_CAFILE"
+      if [ "$DEPLOY_SSH_MULTI_CALL" = "yes" ]; then
         if ! _ssh_remote_cmd "$_cmdstr"; then
           return $_err_code
         fi
@@ -340,37 +323,17 @@ then rm -rf \"\$fn\"; echo \"Backup \$fn deleted as older than 180 days\"; fi; d
     fi
   fi
 
-  # FULLCHAIN is optional.
-  # If provided then fullchain certificate will be copied or appended to provided filename.
-  _getdeployconf DEPLOY_SSH_FULLCHAIN
-  _debug2 DEPLOY_SSH_FULLCHAIN "$DEPLOY_SSH_FULLCHAIN"
   if [ -n "$DEPLOY_SSH_FULLCHAIN" ]; then
-    Le_Deploy_ssh_fullchain="$DEPLOY_SSH_FULLCHAIN"
-    _savedeployconf Le_Deploy_ssh_fullchain "$Le_Deploy_ssh_fullchain"
-  fi
-  if [ -n "$Le_Deploy_ssh_fullchain" ]; then
     _pipe=">"
-    if [ "$Le_Deploy_ssh_fullchain" = "$Le_Deploy_ssh_keyfile" ] ||
-      [ "$Le_Deploy_ssh_fullchain" = "$Le_Deploy_ssh_certfile" ] ||
-      [ "$Le_Deploy_ssh_fullchain" = "$Le_Deploy_ssh_cafile" ]; then
+    if [ "$DEPLOY_SSH_FULLCHAIN" = "$DEPLOY_SSH_KEYFILE" ] ||
+      [ "$DEPLOY_SSH_FULLCHAIN" = "$DEPLOY_SSH_CERTFILE" ] ||
+      [ "$DEPLOY_SSH_FULLCHAIN" = "$DEPLOY_SSH_CAFILE" ]; then
       # if filename is same as previous file then append.
       _pipe=">>"
-      _local_full_file=$(_mktemp)
-      if [ "$Le_Deploy_ssh_fullchain" = "$Le_Deploy_ssh_keyfile" ]; then
-        cat "$_ckey" >>"$_local_full_file"
-      fi
-      if [ "$Le_Deploy_ssh_fullchain" = "$Le_Deploy_ssh_certfile" ]; then
-        cat "$_ccert" >>"$_local_full_file"
-      fi
-      if [ "$Le_Deploy_ssh_fullchain" = "$Le_Deploy_ssh_cafile" ]; then
-        cat "$_cca" >>"$_local_full_file"
-      fi
-      cat "$_cfullchain" >>"$_local_full_file"
-
-    elif [ "$Le_Deploy_ssh_backup" = "yes" ]; then
+    elif [ "$DEPLOY_SSH_BACKUP" = "yes" ]; then
       # backup file we are about to overwrite.
-      _cmdstr="$_cmdstr cp $Le_Deploy_ssh_fullchain $_backupdir >/dev/null;"
-      if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
+      _cmdstr="$_cmdstr cp $DEPLOY_SSH_FULLCHAIN $_backupdir >/dev/null;"
+      if [ "$DEPLOY_SSH_FULLCHAIN" = "yes" ]; then
         if ! _ssh_remote_cmd "$_cmdstr"; then
           return $_err_code
         fi
@@ -378,21 +341,28 @@ then rm -rf \"\$fn\"; echo \"Backup \$fn deleted as older than 180 days\"; fi; d
       fi
     fi
 
-    if [ "$Le_Deploy_ssh_use_scp" = "yes" ]; then
-      if [ -n "$_local_full_file" ]; then
-        if ! _scp_remote_cmd "$_local_full_file" "$Le_Deploy_ssh_fullchain"; then
-          return $_err_code
-        fi
-      else
-        if ! _scp_remote_cmd "$_cfullchain" "$Le_Deploy_ssh_fullchain"; then
-          return $_err_code
-        fi
+    # copy new certificate into file.
+    if [ "$DEPLOY_SSH_USE_SCP" = "yes" ]; then
+      # scp the file
+      _local_full_file=$(_mktemp)
+      if [ "$DEPLOY_SSH_FULLCHAIN" = "$DEPLOY_SSH_KEYFILE" ]; then
+        cat "$_ckey" >> "$_local_full_file"
+      fi
+      if [ "$DEPLOY_SSH_FULLCHAIN" = "$DEPLOY_SSH_CERTFILE" ]; then
+        cat "$_ccert" >> "$_local_full_file"
+      fi
+      if [ "$DEPLOY_SSH_FULLCHAIN" = "$DEPLOY_SSH_CAFILE" ]; then
+        cat "$_cca" >> "$_local_full_file"
+      fi
+      cat "$_cfullchain" >> "$_local_full_file"
+      if ! _scp_remote_cmd "$_local_full_file" "$DEPLOY_SSH_FULLCHAIN"; then
+        return $_err_code
       fi
     else
-      # copy new certificate into file.
-      _cmdstr="$_cmdstr echo \"$(cat "$_cfullchain")\" $_pipe $Le_Deploy_ssh_fullchain;"
-      _info "will copy fullchain to remote file $Le_Deploy_ssh_fullchain"
-      if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
+      # ssh echo to the file
+      _cmdstr="$_cmdstr echo \"$(cat "$_cfullchain")\" $_pipe $DEPLOY_SSH_FULLCHAIN;"
+      _info "will copy fullchain to remote file $DEPLOY_SSH_FULLCHAIN"
+      if [ "$DEPLOY_SSH_MULTI_CALL" = "yes" ]; then
         if ! _ssh_remote_cmd "$_cmdstr"; then
           return $_err_code
         fi
@@ -400,30 +370,22 @@ then rm -rf \"\$fn\"; echo \"Backup \$fn deleted as older than 180 days\"; fi; d
       fi
     fi
   fi
+
   # cleanup local files if any
-
-  if [ -n "$_local_cert_file" ]; then
-    rm "$_local_cert_file" >/dev/null 1>&2
+  if [ -f "$_local_cert_file" ]; then
+    rm -f "$_local_cert_file"
   fi
-  if [ -n "$_local_ca_file" ]; then
-    rm "$_local_ca_file" >/dev/null 1>&2
+  if [ -f "$_local_ca_file" ]; then
+    rm -f "$_local_ca_file"
   fi
-  if [ -n "$_local_full_file" ]; then
-    rm "$_local_full_file" >/dev/null 1>&2
+  if [ -f "$_local_full_file" ]; then
+    rm -f "$_local_full_file"
   fi
 
-  # REMOTE_CMD is optional.
-  # If provided then this command will be executed on remote host.
-  _getdeployconf DEPLOY_SSH_REMOTE_CMD
-  _debug2 DEPLOY_SSH_REMOTE_CMD "$DEPLOY_SSH_REMOTE_CMD"
   if [ -n "$DEPLOY_SSH_REMOTE_CMD" ]; then
-    Le_Deploy_ssh_remote_cmd="$DEPLOY_SSH_REMOTE_CMD"
-    _savedeployconf Le_Deploy_ssh_remote_cmd "$Le_Deploy_ssh_remote_cmd"
-  fi
-  if [ -n "$Le_Deploy_ssh_remote_cmd" ]; then
-    _cmdstr="$_cmdstr $Le_Deploy_ssh_remote_cmd;"
-    _info "Will execute remote command $Le_Deploy_ssh_remote_cmd"
-    if [ "$Le_Deploy_ssh_multi_call" = "yes" ]; then
+    _cmdstr="$_cmdstr $DEPLOY_SSH_REMOTE_CMD;"
+    _info "Will execute remote command $DEPLOY_SSH_REMOTE_CMD"
+    if [ "$DEPLOY_SSH_MULTI_CALL" = "yes" ]; then
       if ! _ssh_remote_cmd "$_cmdstr"; then
         return $_err_code
       fi
@@ -445,10 +407,11 @@ then rm -rf \"\$fn\"; echo \"Backup \$fn deleted as older than 180 days\"; fi; d
 _ssh_remote_cmd() {
   _cmd="$1"
   _secure_debug "Remote commands to execute: $_cmd"
-  _info "Submitting sequence of commands to remote server by ssh"
+  _info "Submitting sequence of commands to remote server by $DEPLOY_SSH_CMD"
+
   # quotations in bash cmd below intended.  Squash travis spellcheck error
   # shellcheck disable=SC2029
-  $Le_Deploy_ssh_cmd "$Le_Deploy_ssh_user@$Le_Deploy_ssh_server" sh -c "'$_cmd'"
+  $DEPLOY_SSH_CMD "$DEPLOY_SSH_USER@$DEPLOY_SSH_SERVER" sh -c "'$_cmd'"
   _err_code="$?"
 
   if [ "$_err_code" != "0" ]; then
@@ -460,9 +423,12 @@ _ssh_remote_cmd() {
 
 # cmd scp
 _scp_remote_cmd() {
-  _secure_debug "Remote scp source $1 and destination $2 using : $Le_Deploy_ssh_scp_cmd"
-  _info "Submitting secure copy command : $Le_Deploy_ssh_scp_cmd"
-  $Le_Deploy_ssh_scp_cmd "$1" "$Le_Deploy_ssh_user"@"$Le_Deploy_ssh_server":"$2"
+  _src=$1
+  _dest=$2
+  _secure_debug "Remote copy source $_src to destination $_dest using: $DEPLOY_SSH_SCP_CMD"
+  _info "Submitting secure copy command: $DEPLOY_SSH_SCP_CMD"
+
+  $DEPLOY_SSH_SCP_CMD "$_src" "$DEPLOY_SSH_USER"@"$DEPLOY_SSH_SERVER":"$_dest"
   _err_code="$?"
 
   if [ "$_err_code" != "0" ]; then