Linux Enable NAT routing

This configuration is thin-provisioned and to set iptables policy in detail for security reasons

Eth0 for external network interface, eth1 for intranet interface

Intranet--eth1---eth0-->internet

vim/etc/sysctl.conf net.ipv4.ip_forward=1sysctl-piptables-fiptables-t nat-a postrouting-o eth0-j MASQUERADEiptab Les-t filter-a forward-i eth0-o eth1-j acceptiptables-t filter-a forward-o eth1-i eth0-j ACCEPTservice iptables Save

This article is from the "foolishfish" blog, make sure to keep this source http://foolishfish.blog.51cto.com/3822001/1416726