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 59714e0..889ace6 100644
--- a/05.PVE制作虚拟机模板.md
+++ b/05.PVE制作虚拟机模板.md
@@ -444,7 +444,7 @@ Debian 模板虚拟机已经配置完成，在将其转换为模板前需要对
 $ sudo apt clean && sudo apt autoclean && sudo apt autoremove --purge
 
 ## 清理系统缓存
-$ sudo rm -rvf /var/cache/apt/* /var/lib/apt/lists/* /tmp/*
+$ sudo rm -rvf /var/cache/apt/* /var/cache/smartdns/* /var/lib/apt/lists/* /tmp/*
 
 ## 清理系统日志
 $ sudo find /var/log/ -type f | xargs sudo rm -rvf
diff --git a/06.PVE制作DNS服务器.md b/06.PVE制作DNS服务器.md
index 8431236..5968636 100644
--- a/06.PVE制作DNS服务器.md
+++ b/06.PVE制作DNS服务器.md
@@ -332,8 +332,6 @@ $ sudo nvim /etc/smartdns/smartdns.conf
 
 conf-file /etc/smartdns.d/*.conf
 
-cache-file /tmp/smartdns.cache
-
 log-level notice
 
 bind [::]:6053@lo
diff --git a/src/debian/debian_dns_smartdns.conf b/src/debian/debian_dns_smartdns.conf
index 824b7ce..471b9be 100644
--- a/src/debian/debian_dns_smartdns.conf
+++ b/src/debian/debian_dns_smartdns.conf
@@ -15,8 +15,6 @@
 
 conf-file /etc/smartdns.d/*.conf
 
-cache-file /tmp/smartdns.cache
-
 log-level notice
 
 bind [::]:6053@lo