Linux将动态IP改为静态IP

原文链接：https://blog.csdn.net/lsm135/article/details/51824132#commentbox

 

1、编辑 ifcfg-eth0 文件，vim 最小化安装时没有被安装，需要自行安装不描述。

[root@root123 ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0

 

2、修改如下内容

1 bootproto="static" #dhcp改为static 
2 onboot="yes" #开机启用本配置
3 ipaddr=192.168.197.131#静态ip
4 gateway=192.168.197.2#默认网关
5 netmask=255.255.255.0#子网掩码
6 dns1=192.168.197.2#dns 配置

 

3、修改后效果

[root@root123 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
hwaddr="00:15:5d:07:f1:02"
type="ethernet"
bootproto="static" #dhcp改为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="eth0"
uuid="bb3a302d-dc46-461a-881e-d46cafd0eb71"
onboot="yes" #开机启用本配置
ipaddr=192.168.197.131#静态ip
gateway=192.168.197.2#默认网关
netmask=255.255.255.0#子网掩码
dns1=192.168.197.2#dns 配置

 

4、重启下网络服务

[root@root123 ~]# service network restart

　　

5、查看改动后的效果，centois 7 不再使用 ifconfig 而是用 ip 命令查看网络信息。

[root@root123 ~]# ip addr
1: lo: <loopback,up,lower_up> mtu 16436 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
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth1: <broadcast,multicast,up,lower_up> mtu 1500 qdisc pfifo_fast state unknown qlen 1000
    link/ether 00:0c:29:b3:a8:5e brd ff:ff:ff:ff:ff:ff
    inet 192.168.197.131/24 brd 192.168.197.255 scope global eth0
    inet 192.168.197.129/24 brd 192.168.197.255 scope global secondary eth0
    inet6 fe80::20c:29ff:feb3:a85e/64 scope link 
       valid_lft forever preferred_lft forever