对于Debian / Ubuntu,简单的解决方案是将iptables调用添加到/ etc / network / interfaces中的post-up钩子,如下所示：

# The primary network interface
auto eth0
iface eth0 inet dhcp
post-up iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 7000