centos7配置ip地址

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版本

[root@localhost ~]# cat /etc/redhat-release

CentOS Linux release 7.1.1503 (Core)

配置ip地址

修改ifcfg-enp0s3文件红色内容（centos6是ifcfg-eth0文件）

[root@localhost ~]# cd /etc/sysconfig/network-scripts[root@localhost network-scripts]# vi ifcfg-enp0s3

TYPE=Ethernet
BOOTPROTO=static
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=enp0s3
UUID=b0a8a367-168b-401d-9c88-b91505f781dc
DEVICE=enp0s3
ONBOOT=yes
IPADDR=192.168.20.200
GATEWAY=192.168.20.1
NETMASK=255.255.255.0
NM_CONTROLLED=no

重启网络

[root@localhost network-scripts]# systemctl restart network

查看ip，使用ip add（最小化安装默认不会安装ifconfig命令，可使用# yum install net-tools -y 装好后就能使用ifconfig命令）

[root@localhost network-scripts]# ip add1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00    inet 127.0.0.1/8 scope host lo       valid_lft forever preferred_lft forever    inet6 ::1/128 scope host        valid_lft forever preferred_lft forever2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000    link/ether 08:00:27:dc:75:9a brd ff:ff:ff:ff:ff:ff    inet 192.168.20.200/24 brd 192.168.20.255 scope global enp0s3       valid_lft forever preferred_lft forever    inet6 fe80::a00:27ff:fedc:759a/64 scope link        valid_lft forever preferred_lft forever

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