[转载]LINUX修改IP等

 

1、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


2、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


3、修改dns
修改/etc/resolv.conf
修改后可即时生效，启动同样有效


4、修改host name
即时生效:
# hostname catter

启动生效:
修改/etc/sysconfig/network