Linux网络属性配置——ifcfg命令家族

时间：2017-06-16 11:33:54 阅读：275 评论：0 收藏：0 [点我收藏+]

标签：host roo class ifconf scope http ack 文件中 byte

ifconfig命令

功能：可以手动启动、查看和修改网络接口的相关参数。
用法：
- ifconfig //查看默认显示激活状态的网卡信息
- ifconfig etho　　　 //显示指定网卡的信息
- ifconfig -a //显示所有网卡的信息
- ifconfig INTERFACE up|down] //禁用或者启动某个网卡
- ifconfig INTERFACE IP //设定IP　　　　
eg：

　　　　　技术分享

...

[li@centos7 ~]$ ifconfig ens33
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.22.12.233  netmask 255.255.0.0  broadcast 172.22.255.255
        inet6 fe80::7bf5:16a7:f734:b7c4  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:0f:5d:ea  txqueuelen 1000  (Ethernet)
        RX packets 287788  bytes 20207460 (19.2 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 993  bytes 197981 (193.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

　　给出指定的IP地址并激活

　　　　1、方式一：#ifconfig IFACEIP/MASK [up]

[root@localhost~]# ifconfig eno16777736 192.168.10.100/24 up
[root@localhost~]# ifconfig 
eno16777736:flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.10.100  netmask 255.255.255.0  broadcast 192.168.10.255
        inet6 fe80::20c:29ff:fee5:2d6a  prefixlen 64 scopeid 0x20<link>
        ether 00:0c:29:e5:2d:6a  txqueuelen 1000  (Ethernet)
        RX packets 126  bytes 44856 (43.8 KiB)
        RX errors 0  dropped 0 overruns 0  frame 0
        TX packets 341  bytes 63010 (61.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0 collisions 0

　　　　2、方式二：#ifconfig IFACEIP netmask NETMASK

[root@localhost~]# ifconfig eno16777736 192.168.10.101 netmask 255.255.255.0
[root@localhost~]# ifconfig 
eno16777736:flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.10.101  netmask 255.255.255.0  broadcast 192.168.10.255
        inet6 fe80::20c:29ff:fee5:2d6a  prefixlen 64 scopeid 0x20<link>
        ether 00:0c:29:e5:2d:6a  txqueuelen 1000  (Ethernet)
        RX packets 126  bytes 44856 (43.8 KiB)
        RX errors 0  dropped 0 overruns 0  frame 0
        TX packets 343  bytes 63150 (61.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0 collisions 0