linux下修改IP、DNS、路由命令行设置

fengqize

ubuntu 版本命令行设置IP

cat /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
        address 192.168.1.104
        netmask 255.255.255.0
        network 192.168.1.0
        broadcast 192.168.1.255
        gateway 192.168.1.2
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 58.22.96.66 218.104.128.106 202.101.138.8
        dns-search .COM

重启网卡: /etc/init.d/networking restatr

redhat linux版本命令行设置IP:

ifconfig eth0 新ip
然后编辑/etc/sysconfig/network-scripts/ifcfg-eth0，修改ip
一、修改IP地址
[aeolus@db network-scripts]$ vi ifcfg-eth0

DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=219.136.241.211
NETMASK=255.255.255.128
GATEWAY=219.136.241.254

二、修改网关
vi /etc/sysconfig/network

NETWORKING=yes
HOSTNAME=Aaron
GATEWAY=192.168.1.1

三、修改DNS
[aeolus@db 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
五、例子
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
修改dns
修改/etc/resolv.conf
修改后可即时生效，启动同样有效
3、修改host name
即时生效:
# hostname fc2
启动生效:
修改/etc/sysconfig/network

ps:

DEVICE=eth0
BOOTPROTO=static
IPADDR=192.168.8.85

NETMASK=255.255.248.0
GATEWAY=192.168.8.1

HWADDR=00:0uu3:47:2C5:40
ONBOOT=yes
TYPE=Ethernet

jason20060306

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jason20060306

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