linux修改ip相關知識

即時生效:

# ifconfig eth0 192.168.0.20 netmask 255.255.255.0

啟動生效:

修改/etc/sysconfig/network-scripts/ifcfg-eth0

修改default gateway

即時生效:

# route add default gw 192.168.0.254

啟動生效:

修改/etc/sysconfig/network-scripts/ifcfg-eth0

修改dns

修改/etc/resolv.conf

修改後可即時生效，啟動同樣有效

修改host name

即時生效:

# hostname fc2

啟動生效:

修改/etc/sysconfig/network