linux常用操作

1.写死ip地址

auto eth0
iface eth0 inet static
        address 10.32.10.235
        netmask 255.255.252.0
        gateway 10.32.8.1

 2.开放端口并保存

iptables -A INPUT -p tcp --dport 80 -j ACCEPT
iptables-save > /etc/iptables/ipt_save.def