diff --git a/05.PVE制作虚拟机模板.md b/05.PVE制作虚拟机模板.md
index 287ecc1..7c73f41 100644
--- a/05.PVE制作虚拟机模板.md
+++ b/05.PVE制作虚拟机模板.md
@@ -246,7 +246,8 @@ $ sudo nvim /etc/systemd/timesyncd.conf.d/10-server-ntp.conf
 在配置文件中添加以下配置项，并保存。  
 
 ```bash
-## NTP 配置项
+# This configuration file is customized by fox,
+# Optimize system NTP server.
 
 [Time]
 NTP=ntp.tencent.com ntp.aliyun.com
diff --git a/06.PVE制作DNS服务器.md b/06.PVE制作DNS服务器.md
index 4d1a511..662bc98 100644
--- a/06.PVE制作DNS服务器.md
+++ b/06.PVE制作DNS服务器.md
@@ -100,7 +100,8 @@ $ sudo nvim /etc/systemd/resolved.conf.d/10-server-dns.conf
 在配置文件中添加以下配置项，并保存。  
 
 ```bash
-## systemd-resolved 配置项
+# This configuration file is customized by fox,
+# Optimize system resolve parameters for local DNS server.
 
 [Resolve]
 DNS=127.0.0.1
diff --git a/07.PVE制作TS服务器.md b/07.PVE制作TS服务器.md
index b7b5b4e..d6d50fd 100644
--- a/07.PVE制作TS服务器.md
+++ b/07.PVE制作TS服务器.md
@@ -272,7 +272,8 @@ $ sudo nvim /etc/systemd/timesyncd.conf.d/10-server-ntp.conf
 在配置文件中添加以下配置项，并保存。  
 
 ```bash
-## NTP 配置项
+# This configuration file is customized by fox,
+# Optimize system NTP server.
 
 [Time]
 NTP=ntp.tencent.com ntp.aliyun.com
@@ -437,7 +438,8 @@ $ sudo nvim /etc/systemd/resolved.conf.d/10-server-dns.conf
 在配置文件中添加以下配置项，并保存。  
 
 ```bash
-## systemd-resolved 配置项
+# This configuration file is customized by fox,
+# Optimize system resolve parameters for local TS server.
 
 [Resolve]
 DNS=127.0.0.1