Linux系统网络管理

命令行提示

ip address add, delete and show (or list )

ip address { add | change | replace } IFADDR dev IFNAME [ LIFETIME ] [ CONFFLAG-LIST ]

Cenotos6
system-config-network
setup

Centos7
nmtui

基于配置文件

• 网卡配置文件

/etc/sysconfig/network-script/ifcfg-IFACE

如需要给一个接口配置多个地址

1）ifconfig eth1:0 192.168.20.100/24 (重启网卡失效)
2） 配置文件 cp eth1 eth1:0  后进行修改	
	DEVICE=IFACE_LABLE
	BOOTPORTO：网上别名不支持动态获取IP地址，需要配置为[static|none]

• 网卡路由配置
  /etc/sysconfig/network-scripts/route-IFACE

  1. 每行一条路由条目
     TARGET via GW
  2. 每三行一个路由条目
     ADDRESS=TARGET
     NETMASK=MASK
     GATEWAY=NextHop

• 网络服务

  network

  NetworkManager (不完善，建议服务禁用掉，使用network)

  Centos6 : service SERVICE {start|stop| restart| status}

  Centos7: systemctl {start|stop| restart| status} SERVICE[.service]

  当配置文件修改后需要重启网络服务才使之生效

  service network restart

  systemctl restart network.service

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nmcli

nmcli - command-line tool for controlling NetworkManager
nmcli [OPTIONS…] {help | general | networking | radio | connection | device | agent | monitor} [COMMAND] [ARGUMENTS…]

Usage: nmcli [OPTIONS] OBJECT { COMMAND | help }

nmcli device