Linux网卡配置与绑定—— /etc/sysconfig/network-scripts/ifcfg-eth0

1、通过ifconfig命令，先查看本机网卡配置

格式：[root@root ~]# ifconfig

可以看到本机只有一个网卡eth2

[root@root ~]# ifconfig
eth2      Link encap:Ethernet  HWaddr 00:0C:29:60:20:0C
inet6 addr: fe80::20c:29ff:fe60:200c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:6001 errors:0 dropped:0 overruns:0 frame:0
TX packets:628 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:497208 (485.5 KiB)  TX bytes:211608 (206.6 KiB)

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:1084 errors:0 dropped:0 overruns:0 frame:0
TX packets:1084 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:54318 (53.0 KiB)  TX bytes:54318 (53.0 KiB)

2、进入本机网卡配置文件

[root@root ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0

可以发现里面没有IP地址、子网掩码、网关和DNS等

DEVICE=eth0
HWADDR=00:0C:29:8E:06:49
TYPE=Ethernet
UUID=192435b9-e0cd-4f97-b574-f7b4cfc1c4b3
ONBOOT=no
NM_CONTROLLED=yes
BOOTPROTO=dhcp

3、配置该网卡

DEVICE=eth2
HWADDR=00:0C:29:8E:06:49
TYPE=Ethernet
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.113.110
NETMASK=255.255.255.0
GATEWAY=192.168.113.245
DNS1=114.114.114.114
DNS2=8.8.8.8

4、修改相关文件信息

5、 查看又该后的网卡信息

已经修改成功，可以正常使用了。