diff --git a/5.PVE制作虚拟机模板.md b/5.PVE制作虚拟机模板.md
index 1852d3f..6577665 100644
--- a/5.PVE制作虚拟机模板.md
+++ b/5.PVE制作虚拟机模板.md
@@ -169,20 +169,30 @@ sudo nano /etc/sysctl.d/99-sysctl.conf
 在配置文件末尾输入以下内容，注意命令中间的空格：
 
 ```bash
+# This configuration file is customized by fox
+# Optimize system parameters
+
+kernel.panic = 20
+kernel.panic_on_oops = 1
+
 net.core.default_qdisc = fq_codel
 net.ipv4.tcp_congestion_control = bbr
 
-net.ipv4.tcp_fastopen = 1
+# Other adjustable system parameters
+
+net.ipv4.conf.all.log_martians = 1
+
+net.ipv4.icmp_ratelimit = 100
+net.ipv4.igmp_max_memberships = 100
+
+net.ipv4.tcp_fin_timeout = 30
+net.ipv4.tcp_keepalive_time = 120
+net.ipv4.tcp_max_orphans = 4096
+net.ipv4.tcp_max_tw_buckets = 4096
 net.ipv4.tcp_syncookies = 1
-net.ipv4.tcp_notsent_lowat = 131072
 
-net.ipv4.tcp_ecn = 1
-net.ipv4.tcp_sack = 1
-net.ipv4.tcp_dsack = 1
-
-net.ipv4.icmp_ratelimit = 50
-
-kernel.panic = 20
+net.ipv6.conf.all.use_tempaddr = 0
+net.ipv6.conf.default.use_tempaddr = 0
 ```
 
 保存该配置文件后，重启系统或者执行以下命令让配置生效：