Centos 7开启网卡自动获取IP的详细方法_Centos

Centos 7开启网卡自动获取IP的详细方法

2021-12-29 16:26凌锋 Centos

本篇文章主要介绍了Centos 7开启网卡自动获取IP的详细方法，小编觉得挺不错的，现在分享给大家，也给大家做个参考。一起跟随小编过来看看吧

Centos7默认安装是没有开启配置网卡信息的，无法访问外网。

下边配置打开网络自动获取Ip地址

1.查看网卡信息

执行Ifconfig

				?

									eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500

									    inet6 fe80::20c:29ff:fee8:8637 prefixlen 64 scopeid 0x20<link>

									    ether 00:0c:29:e8:86:37 txqueuelen 1000 (Ethernet)

									    RX packets 1121 bytes 98968 (96.6 KiB)

									    RX errors 0 dropped 0 overruns 0 frame 0

									    TX packets 179 bytes 25233 (24.6 KiB)

									    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 

									lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536

									    inet 127.0.0.1 netmask 255.0.0.0

									    inet6 ::1 prefixlen 128 scopeid 0x10<host>

									    loop txqueuelen 0 (Local Loopback)

									    RX packets 900 bytes 78372 (76.5 KiB)

									    RX errors 0 dropped 0 overruns 0 frame 0

									    TX packets 900 bytes 78372 (76.5 KiB)

									    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

1.eno16777736代表网卡的名称，ether 00:0c:29:e8:86:37代表网卡的Mac地址

2.配置网卡开始网络连接

				?

									cd /etc/system/network-scripts/

									vi ifcfg-eno16777736

				?

									HWADDR=00:0C:29:E8:86:37

									TYPE=Ethernet

									BOOTPROTO=dhcp

									DEFROUTE=yes

									PEERDNS=yes

									PEERROUTES=yes

									IPV4_FAILURE_FATAL=no

									IPV6INIT=yes

									IPV6_AUTOCONF=yes

									IPV6_DEFROUTE=yes

									IPV6_PEERDNS=yes

									IPV6_PEERROUTES=yes

									IPV6_FAILURE_FATAL=no

									NAME=eno16777736

									UUID=79d6c916-aab8-45e4-a163-37ae73393d26

									ONBOOT=no

将ONBOOT= no改成ONBOOT=yes

3.重启网络

				?

									service network restart

4.再执行ifconfig

				?

									eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500

									    inet 192.168.159.128 netmask 255.255.255.0 broadcast 192.168.159.255

									    inet6 fe80::20c:29ff:fee8:8637 prefixlen 64 scopeid 0x20<link>

									    ether 00:0c:29:e8:86:37 txqueuelen 1000 (Ethernet)

									    RX packets 1699 bytes 140091 (136.8 KiB)

									    RX errors 0 dropped 0 overruns 0 frame 0

									    TX packets 333 bytes 42669 (41.6 KiB)

									    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

									lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536

									    inet 127.0.0.1 netmask 255.0.0.0

									    inet6 ::1 prefixlen 128 scopeid 0x10<host>

									    loop txqueuelen 0 (Local Loopback)

									    RX packets 900 bytes 78372 (76.5 KiB)

									    RX errors 0 dropped 0 overruns 0 frame 0

									    TX packets 900 bytes 78372 (76.5 KiB)

									    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0