配置网卡子接口

72 阅读 0 评论 48 点赞

我是靠谱客的博主轻松黄蜂，最近开发中收集的这篇文章主要介绍配置网卡子接口，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

配置网卡子接口

一台服务器：192.168.182.137

子接口的命名规则：ifcfg-ens33:0，ifcfg-ens33:1等等

1、关闭防火墙、selinux

[root@localhost ~]# systemctl stop firewalld
# 关闭防火墙
[root@localhost ~]# systemctl disable firewalld
# 开机自动关闭防火墙
[root@localhost ~]# getenforce
#查看selinux的状态
enforcing
[root@localhost ~]# setenforce 0
# 临时关闭selinux
[root@localhost ~]# vim /etc/selinux/config
#永久关闭selinux，但是要重启机器才会生效(reboot)
SELINUX=disabled
#将enforcing修改为disabled

2、配置子接口文件

[root@localhost ~]# cd /etc/sysconfig/network-scripts/
[root@localhost network-scripts]# ls
ifcfg-ens33
ifdown-bnep
ifdown-ipv6
ifdown-ppp
ifdown-Team
ifup
ifup-eth
ifup-isdn
ifup-post
ifup-sit
ifup-tunnel
network-functions
ifcfg-lo
ifdown-eth
ifdown-isdn
ifdown-routes
ifdown-TeamPort
ifup-aliases
ifup-ippp
ifup-plip
ifup-ppp
ifup-Team
ifup-wireless
network-functions-ipv6
ifdown
ifdown-ippp
ifdown-post
ifdown-sit
ifdown-tunnel
ifup-bnep
ifup-ipv6
ifup-plusb
ifup-routes
ifup-TeamPort
init.ipv6-global
[root@localhost network-scripts]# vim ifcfg-ens33 
[root@localhost network-scripts]# mv ifcfg-ens33 ifcfg-ens33.bak
[root@localhost network-scripts]# vim ifcfg-ens33
#ip地址为192.168.184.110
TYPE="Ethernet"
BOOTPROTO="none"
NAME="ens33"
DEVICE="ens33"
ONBOOT="yes"
IPADDR=192.168.184.110
NETMASK=255.255.255.0
[root@localhost network-scripts]# cp ifcfg-ens33 ifcfg-ens33:0 
[root@localhost network-scripts]# vim ifcfg-ens33:0
#ip地址为192.168.184.111
TYPE="Ethernet"
BOOTPROTO="none"
NAME="ens33:0"
DEVICE="ens33:0"
ONBOOT="yes"
IPADDR=192.168.184.111
NETMASK=255.255.255.0
[root@localhost network-scripts]# cp ifcfg-ens33 ifcfg-ens33:1
[root@localhost network-scripts]# vim ifcfg-ens33:1
#ip地址为192.168.184.112
TYPE="Ethernet"
BOOTPROTO="none"
NAME="ens33:1"
DEVICE="ens33:1"
ONBOOT="yes"
IPADDR=192.168.184.112
NETMASK=255.255.255.0
[root@localhost network-scripts]# ls
ifcfg-ens33
ifdown-eth
ifdown-sit
ifup-eth
ifup-ppp
init.ipv6-global
ifcfg-ens33:0
ifdown-ippp
ifdown-Team
ifup-ippp
ifup-routes
network-functions
ifcfg-ens33:1
ifdown-ipv6
ifdown-TeamPort
ifup-ipv6
ifup-sit
network-functions-ipv6
ifcfg-ens33.bak
ifdown-isdn
ifdown-tunnel
ifup-isdn
ifup-Team
ifcfg-lo
ifdown-post
ifup
ifup-plip
ifup-TeamPort
ifdown
ifdown-ppp
ifup-aliases
ifup-plusb
ifup-tunnel
ifdown-bnep
ifdown-routes
ifup-bnep
ifup-post
ifup-wireless

3、重启网络服务

[root@localhost ~]# systemctl restart network

4、测试配置

重启网卡后，如果用工具远程连接的服务器，当前的连接会断开，可以在重新登录新设置的ip地址。

[c:~]$ ssh 192.168.184.110
Connecting to 192.168.184.110:22...
Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.
WARNING! The remote SSH server rejected X11 forwarding request.
Last login: Mon Sep
9 18:53:39 2019 from 192.168.184.1
[root@localhost ~]# ip a |grep ens33
#可以查看到设置的子接口地址
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
inet 192.168.184.110/24 brd 192.168.184.255 scope global ens33
inet 192.168.184.111/24 brd 192.168.184.255 scope global secondary ens33:0
inet 192.168.184.112/24 brd 192.168.184.255 scope global secondary ens33:1