Configuring/etc/sysconfig/network-script/ifcfg-eth0 in Linux

Network Interface configuration file
[Email protected] ~]# Cat/etc/sysconfig/network-scripts/ifcfg-eth0
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: Static protocol –BOOTP Protocol –DHCP Protocol
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
Re-import the Ifcfg-eth0 network configuration file
[Email protected] ~]#/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]

NIC interface shutdown and activation
[Email protected] ~]# ifdown eth0 #关闭网络
[Email protected] ~]# ifup eth0 #启动网络

Network Service startup and shutdown
Method One:
[[Email protected] ~]# service network stop #关闭网络服务
[Email protected] ~]# service network start #启动网络服务
[Email protected] ~]# service network restart #重启网络服务
Method Two:
[[email protected] ~]#/etc/init.d/network stop
[[email protected] ~]#/etc/init.d/network start
[Email protected] ~]#/etc/init.d/network restart
Network card status query
[Email protected] ~]# service network status
Configured devices:
Lo eth0
Currently active devices:
Lo eth0

The

temporarily configures network card information without rebooting.
[[email protected] ~]# ifconfig eth0 10.1.1.10 netmask 255.0.0.0
View NIC interface information, all interfaces are listed by default
[[email protected] ~]# 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 :d 8920000-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)
view current Routing and gateway information
[Email protected] ~]# 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:
Host Name: CentOS
Main dns:202.106.46.151
Second dns:202.106.0.20
Third dns:8.8.8.8

Network configuration:
Eth0
Static ip:192.168.1.106
Subnet Mask 255.255.255.0
Default Gateway 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

Configuring/etc/sysconfig/network-script/ifcfg-eth0 in Linux