diff --git a/README.md b/README.md
index 969e59b..624eefc 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,20 @@ http {
 }
 ```
 
+测试服所使用的DNS服务:
+
+```bash
+➤ ssh weli@moicen.com
+Activate the web console with: systemctl enable --now cockpit.socket
+
+Last login: Wed Dec 29 20:10:34 2021 from 111.193.10.152
+[weli@moicen ~]$ cat /etc/resolv.conf
+# Generated by NetworkManager
+nameserver 183.60.82.98
+nameserver 183.60.83.19
+[weli@moicen ~]$
+```
+
 put `upload.lua` into:
 
 ```bash