ifconfig eth0 新ip

然后编辑/etc/sysconfig/network-scripts/ifcfg-eth0，修改ip 一、修改IP地址 [aeolus@db1 network-scripts]$ vi ifcfg-eth0 DEVICE=eth0 ONBOOT=yes BOOTPROTO=static IPADDR=192.168.1.1 NETMASK=255.255.255.0 GATEWAY=192.168.1.254 二修改网关 vi /etc/sysconfig/network NETWORKING=yes HOSTNAME=Aaron GATEWAY=192.168.1.254 三修改DNS [aeolus@db1 etc]$ vi resolv.conf nameserver 202.96.128.68 nameserver 219.136.241.206 四重新启动网络配置 /etc/init.d/network restart 修改ip地址 即时生效: # ifconfig eth0 192.168.0.20 netmask 255.255.255.0 启动生效: 修改/etc/sysconfig/network-scripts/ifcfg-eth0 修改default gateway 即时生效: # route add default gw 192.168.0.254 启动生效: 修改/etc/sysconfig/network-scripts/ifcfg-eth0 修改dns 修改/etc/resolv.conf 修改后可即时生效，启动同样有效 修改host name 即时生效: # hostname fc2 启动生效: 修改/etc/sysconfig/network