diff --git a/02.PVE初始化配置.md b/02.PVE初始化配置.md
index 3c3b789..b4143d8 100644
--- a/02.PVE初始化配置.md
+++ b/02.PVE初始化配置.md
@@ -174,7 +174,7 @@ $ apt update
 $ apt install htop lm-sensors unzip neovim tmux unattended-upgrades powermgmt-base
 
 ## 安装网络工具
-$ apt install iperf iperf3 iftop openvswitch-switch
+$ apt install iperf iperf3 iftop sshguard openvswitch-switch
 
 ## 安装 CPU 调度调整工具
 $ apt install linux-cpupower
diff --git a/03.PVE系统调整.md b/03.PVE系统调整.md
index 2bf3698..bbe4354 100644
--- a/03.PVE系统调整.md
+++ b/03.PVE系统调整.md
@@ -12,7 +12,7 @@ $ apt update
 $ apt install htop lm-sensors unzip neovim tmux unattended-upgrades powermgmt-base
 
 ## 安装网络工具
-$ apt install iperf iperf3 iftop openvswitch-switch
+$ apt install iperf iperf3 iftop sshguard openvswitch-switch
 
 ## 安装 CPU 调度调整工具
 $ apt install linux-cpupower