服务器折腾之间出现的问题和想法

[Unit]
Description=Tun2Socks Tunnel Service
After=network.target

[Service]
Type=simple
ExecStart=/usr/local/bin/tun2socks /etc/tun2socks/config.yaml

# 启动后配置路由规则
ExecStartPost=/bin/bash -c "/sbin/ip rule add fwmark 438 lookup main pref 10; /sbin/ip -6 rule add fwmark 438 lookup main pref 10; /sbin/ip route add default dev tun0 table 20; /sbin/ip rule add lookup 20 pref 20"

# 停止服务时清理规则
ExecStop=/bin/bash -c "/sbin/ip route del default dev tun0 table 20; /sbin/ip rule del lookup 20 pref 20; /sbin/ip rule del fwmark 438 lookup main pref 10; /sbin/ip -6 rule del fwmark 438 lookup main pref 10"

Restart=on-failure

[Install]
WantedBy=multi-user.target

# 落地机信息
[[endpoints]]
listen = "[::]:4000"
remote = "v4ip:v4端口"

[[endpoints]]
listen = "[::]:5000"
remote = "[v6ip]:v6端口"

# 设置开机启动
systemctl enable realm

# 启动 realm 服务
systemctl start realm

# 重启 realm 服务
systemctl restart realm

# 查看服务状态
systemctl status realm