linux下配置IP地址

哎，慚愧啊，ＬＩＮＵＸ學的不好，把這個寫上當作筆記了！！！

 

 

示例環境：
OS: FC2
NIC: eth0
host name: fc2
ip: 192.168.0.20/24
default gateway: 192.168.0.254

修改ip地址
即時生效:
# ifconfig eth0 192.168.0.20 netmask 255.255.255.0
啓動生效:
修改/etc/sysconfig/network-scripts/ifcfg-eth0

修改default gateway
即時生效:
# route add default gw 192.168.0.254
啓動生效:
修改/etc/sysconfig/network-scripts/ifcfg-eth0

修改dns
修改/etc/resolv.conf
修改後可即時生效，啓動同樣有效

修改host name
即時生效:
# hostname fc2
啓動生效:
修改/etc/sysconfig/network