Full system VPN with shadowsocks-rust on linux using tun

gistfile1.txt

#!/bin/sh

# Function to restore network configuration
restore_network_config() {
  ip route del default via 10.255.0.1 dev tun0
  sysctl -w net.ipv4.ip_forward=0
  ifconfig tun0 down
  ip tuntap del mode tun tun0
}

# Trap SIGTERM and SIGINT signals to restore network config on shutdown
trap restore_network_config SIGTERM SIGINT

# Set up the tunnel
ip tuntap add mode tun tun0
ifconfig tun0 inet 10.255.0.1 netmask 255.255.255.0 up
sysctl -w net.ipv4.ip_forward=1
ip route add default via 10.255.0.1 dev tun0

# Run sslocal
sslocal --protocol tun -s "ip:port" -m "encryption-algo" -k "password"  --outbound-bind-interface your-network-interface --tun-interface-name tun0