(一)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,…