linux 下 ifcfg-eth0 配置

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 eth0

DNS：
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     192.168.1.1


DEVICE=eth0
IPADDR=192.168.1.106
NETMASK=255.255.255.0
BROADCAST=192.168.1.255
ONBOOT=yes
BOOTPROTO=none
GATEWAY=192.168.1.1
TYPE=Ethernet
"/etc/sysconfig/network-scripts/ifcfg-eth0" 11L, 187C

 

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