linux修改ip和dns的方法

specify IP by self:

$vi /etc/sysconfig/network-scripts/ifcfg-eth0

fix like below:

# Xen Virtual Ethernet
DEVICE=eth0
#BOOTPROTO=dhcp
HWADDR=00:16:3E:06:22:34
ONBOOT=yes
IPADDR=192.168.75.20
NETMASK=255.255.255.0
GATEWAY=192.168.75.254
TYPE=Ethernet

specify SVN IP by self:

$vi /etc/sysconfig/network-scripts/ifcfg-vpn_vpnchina

fix like below:

# Broadcom Corporation NetXtreme BCM5721 Gigabit Ethernet PCI Express
DEVICE=vpn_vpnchina
BOOTPROTO='none'
BROADCAST='192.168.6.255'
IPADDR='192.168.6.45'
NETMASK='255.255.255.0'
NETWORK='192.168.6.0'
ONBOOT='yes'
TYPE='Ethernet'
USERCTL='no'
STARTMODE='auto'

配置文件位于:

/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.0.3
NETMASK=255.255.255.0
GATEWAY=192.168.0.1

使IP地址生效:

/sbin/ifdown eth0
/sbin/ifup eth0

通知网关更新信息:

/etc/init.d/network restart

OpenSuse的配置:

修改/etc/sysconfig/network/config文件:

NETWORKMANAGER="yes" 通过 networkmanage 的用户方法设置
NETWORKMANAGER="no"  通过 ipfu传统的方法设置(选择这个)

修改/etc/sysconfig/network/ifcfg-eth0,详细设置请看ifcfg.template:

BOOTPROTO='static'
BROADCAST='192.168.75.255'
ETHTOOL_OPTIONS=''
IPADDR='192.168.75.100'
NAME='82562EZ 10/100 Ethernet Controller'
NETMASK='255.255.255.0'
NETWORK='192.168.75.0'
STARTMODE='onboot'
USERCONTROL='no'
ONBOOT='yes'
PREFIXLEN='24'
LLADDR='00:11:43:A9:E6:D7'  (mac地址)

3./etc/sysconfig/network/routes网关设置:

default 192.168.75.254

4./etc/resolv.conf DNS设置:

nameserver 202.101.224.69

5.重启network服务:

/etc/init.d/network restart