CentOS 7 配置网络
2016-07-18 by dongnan
配置文件
centos 7.x 与 centos 6.x 的网络配置项基本相同，需要注意的是 NM_CONTROLLED=no选项，表示该接口将通过该配置文件进行设置，而不是通过网络管理器进行管理。
示例配置
# 执行命令
vim /etc/sysconfig/network-scripts/ifcfg-eth1
# 内容类似如下
TYPE=Ethernet
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
NAME=eth1
DEVICE=eth1
ONBOOT=yes
DNS1=202.106.0.20
DNS2=202.106.45.151
IPADDR=10.0.0.20
PREFIX=24
GATEWAY=10.0.0.1
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
重启网络
systemctl restart network.service
验证
# 执行命令
ip add show eth1
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 06:bc:f5:28:f4:db brd ff:ff:ff:ff:ff:ff
inet 10.0.0.20/24 brd 10.0.0.255 scope global eth1
valid_lft forever preferred_lft forever
inet6 fe80::4bc:f5ff:fe28:f4db/64 scope link
valid_lft forever preferred_lft forever
扩展:网络管理器
nmcli dev status
DEVICE TYPE STATE CONNECTION
docker0 bridge connected docker0
eth0 ethernet connected eth0
veth9f2311a ethernet unmanaged --
vethf764244 ethernet unmanaged --
lo loopback unmanaged --
帮助
# 执行命令
nmcli dev status
NAME
nmcli - command‐line tool for controlling NetworkManager
SYNOPSIS
nmcli [ OPTIONS ] OBJECT { COMMAND | help }
OBJECT := { general | networking | radio | connection | device | agent }
OPTIONS := {
-t[erse]
-p[retty]
-m[mode] tabular | multiline
-f[ields] <field1,field2,...> | all | common
-e[scape] yes | no
-n[ocheck]
-a[sk]
-w[ait] <seconds>
-v[ersion]
-h[elp]
}