linux centos下配置静态ip地址
[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
HWADDR="00:0C:29:FD:FF:2A"
NM_CONTROLLED="yes"
ONBOOT="yes"
IPADDR=192.168.1.31
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
BOOTPROTO=static
前面三行是系统睚带的,后面就是手动添加的。
这样设置扣,记得重启网卡:
[root@localhost
~]# /etc/init.d/network stop
[root@localhost ~]# /etc/init.d/network
start
行了,现在就可以PING得通网关了,如果还得上网,不必须设置DNS。设置DNS就详见步骤2
步骤2、修改dns
[root@localhost
~]# vi /etc/resolv.conf
在里面添加二个dns:
nameserver
202.96.134.133
nameserver 8.8.8.8
ok,大攻告成,即可上网了!!!!
以下是参考,如果按上面步骤不行,可以详细看以下内容:
网络接口配置文件
[root@localhost
~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# Intel Corporation 82545EM
Gigabit Ethernet Controller (Copper)
TYPE=Ethernet
#网卡类型
DEVICE=eth0 #网卡接口名称
ONBOOT=yes
#系统启动时是否自动加载
BOOTPROTO=static #启用地址协议 --static:静态协议 --bootp协议
--dhcp协议
IPADDR=192.168.1.11 #网卡IP地址
NETMASK=255.255.255.0
#网卡网络地址
GATEWAY=192.168.1.1 #网卡网关地址
DNS1=10.203.104.41
#网卡DNS地址
HWADDR=00:0C:29:13:5D:74 #网卡设备MAC地址
BROADCAST=192.168.1.255
#网卡广播地址
重新导入ifcfg-eth0网络配置文件
[root@localhost ~]# /etc/init.d/network
reload
Shutting down interface eth0: [ OK
]
Shutting down loopback interface: [ OK
]
Bringing up loopback interface: [ OK
]
Bringing up interface eth0: [ OK ]
网卡接口关闭与激活
[root@localhost ~]# ifdown eth0 #关闭网络
[root@localhost ~]#
ifup eth0 #启动网络
网络服务启动与关闭
方法一:
[root@localhost ~]# service network stop
#关闭网络服务
[root@localhost ~]# service network start
#启动网络服务
[root@localhost ~]# service network restart
#重启网络服务
方法二:
[root@localhost ~]# /etc/init.d/network
stop
[root@localhost ~]# /etc/init.d/network start
[root@localhost ~]#
/etc/init.d/network restart
网卡状态查询
[root@localhost ~]# service network
status
Configured devices:
lo eth0
Currently active devices:
lo
eth0
临时配置网卡信息,无需重启。
[root@localhost ~]# ifconfig eth0 10.1.1.10 netmask
255.0.0.0
查看网卡接口信息,默认列出所有接口
[root@localhost ~]# ifconfig
eth0 Link
encap:Ethernet HWaddr 00:0C:29:13:5D:74
inet addr:192.168.1.11
Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr:
fe80::20c:29ff:fe13:5d74/64 Scope:Link
UP BROADCAST RUNNING
MULTICAST MTU:1500 Metric:1
RX packets:413 errors:0 dropped:0
overruns:0 frame:0
TX packets:572 errors:0 dropped:0 overruns:0
carrier:0
collisions:0 txqueuelen:1000
RX bytes:47701
(46.5 KiB) TX bytes:64842 (63.3 KiB)
Base address:0x2000
Memory:d8920000-d8940000
lo Link encap:Local Loopback
inet addr:127.0.0.1
Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP
LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:407 errors:0
dropped:0 overruns:0 frame:0
TX packets:407 errors:0 dropped:0
overruns:0 carrier:0
collisions:0 txqueuelen:0
RX
bytes:70759 (69.1 KiB) TX bytes:70759 (69.1
KiB)
查看当前路由及网关信息
[root@localhost ~]# netstat -r
Kernel IP routing
table
Destination Gateway Genmask Flags MSS Window
irtt Iface
192.168.1.0 * 255.255.255.0 U 0
0 0 eth0
169.254.0.0 * 255.255.0.0 U 0
0 0 eth0
default 192.168.1.1 0.0.0.0 UG 0
0 0
eth0DNS:主机名:CentOS主DNS:202.106.46.151第二DNS:202.106.0.20第三DNS:8.8.8.8网络配置:eth0静态ip:192.168.1.106子网掩码
255.255.255.0默认网关 IP
192.168.1.1DEVICE=eth0IPADDR=192.168.1.106NETMASK=255.255.255.0BROADCAST=192.168.1.255ONBOOT=yesBOOTPROTO=noneGATEWAY=192.168.1.1TYPE=Ethernet"/etc/sysconfig/network-scripts/ifcfg-eth0"
11L, 187C