/etc
一、修改配置文档(需要重启网络配置,永远生效)
1、修改IP地址
[[email protected] network-scripts]$ vi ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.30.197
NETMASK=255.255.255.0
GATEWAY=192.168.30.1
-------------------------------------------------------------------------------------
2、修改网关
vi /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=Aaron
GATEWAY=192.168.30.1
-------------------------------------------------------------------------------------
3、修改DNS
[[email protected] etc]$ vi resolv.conf
nameserver 202.131.80.1
nameserver 202.131.80.5
4、使用命令修改(直接即时生效,重启失效)
#ifconfig eth0 192.168.0.1 netmask 255.255.255.0 up
说明:eth0是第一个网卡,其他依次为eth1,eth*192.168.0.1是给网卡配置的第一个网卡配置的ip地址netmask 255.255.255.0 配置的是子网掩码up是表示立即激活ifconfig的更多参数说明查看相关帮助gateway:# route add default gw 192.168.30.1 eth0dns:# vi etc/resolv.confnameserver 202.131.80.1nameserver 202.131.80.5如果要重起生效,就把这些写到起动脚本rc.local中====================================================配置文件通常是/etc/sysconfig/network-scripts/ifcfg-interface-name