diff --git a/FAQ.md b/FAQ.md
index 00dd44b..15710bd 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -1063,3 +1063,10 @@ There are two ways.
 1. Set up http proxy: https://github.com/rustdesk/rustdesk/wiki/Set-up-http-proxy-server
 
 2. Build a custom client with [WebSocket allowed](https://rustdesk.com/docs/en/self-host/client-configuration/advanced-settings/#allow-websocket), you also need to set up server correctly with [WebSocket support](https://rustdesk.com/docs/en/self-host/rustdesk-server-pro/#6-set-up-websocket). If all your clients use WebSocket, you can close 21114-21119 UDP/TCP ports on firewall of self-host server, only open the 443 port.
+
+# Pracise of backup server
+
+- Follow https://github.com/rustdesk/rustdesk-server-pro/discussions/184 to backup files and sync database on backup server
+- Migrate license to backup server 
+- Change your dns ip to backup server
+