Linux网络配置文件

网卡配置文件

/etc/sysconfig/network-scripts/ 这个目录下会有一个以"ifcfg-<设备名>"命名的文件与网卡的名字之对应

[root@localhost ~]# ls /etc/sysconfig/network-scripts/
ifcfg-eth0   ifdown-ipv6    ifdown-Team      ifup-eth    ifup-post      ifup-tunnel
ifcfg-lo     ifdown-isdn    ifdown-TeamPort  ifup-ippp   ifup-ppp       ifup-wireless
ifdown       ifdown-post    ifdown-tunnel    ifup-ipv6   ifup-routes    init.ipv6-global
ifdown-bnep  ifdown-ppp     ifup             ifup-isdn   ifup-sit       network-functions
ifdown-eth   ifdown-routes  ifup-aliases     ifup-plip   ifup-Team      network-functions-ipv6
ifdown-ippp  ifdown-sit     ifup-bnep        ifup-plusb  ifup-TeamPort

[root@localhost ~]# ifconfig | head -1
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500

[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 
/etc/sysconfig/network-scripts/ifcfg-eth0
# Generated by dracut initrd 
DEVICE="eth0" 				//网卡设备名
ONBOOT="yes" 				//
NM_CONTROLLED="no"	
TYPE="Ethernet" 			//类型为以太网
BOOTPROTO="static" 		
IPADDR="192.168.1.100" 		//IP地址
NETMASK="255.255.255.0" 	//子网掩码
GATEWAY="192.168.1.254"		//网关