Linux下配置IP地址笔记

ifconfig 命令

通过ifconfig命令配置的网卡IP地址用来临时测试使用。
重启后ip地址的配置将自动失效

ifconfig <网卡名称> <IP地址> netmask <x.x.x.x掩码>
ifconfig <interface> [[<AF>] <address>] [netmask <address>]

interfaces文件

在ubuntu16.04系统中配置管用

vi /etc/network/interfaces

network-manager

一般桌面版的ubuntu使用network-manager管理

sudo servicenetwork-manager stop
sudo servicenetwork-manager stop

如果用户希望在Desktop版本中，直接使用interfaces 进行网络配置，那最好删除network-manager 。

dns修改

vi /etc/resolv.conf

nameserver 192.168.1.254 #希望修改成的DNS

重启网络

$ systemctl list-units --type=service | grep network
networking.service                                                                        loaded active exited  Raise network interfaces
sudo/etc/init.d/networking restart

$ systemctl list-unit-files --type=service | grep network
dbus-org.freedesktop.network1.service      disabled
networking.service                         enabled 
systemd-networkd-resolvconf-update.service static  
systemd-networkd-wait-online.service       disabled
systemd-networkd.service                   disabled

$ systemctl status networking.service
● networking.service - Raise network interfacesLoaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)Drop-In: /run/systemd/generator/networking.service.d└─50-insserv.conf-$network.confActive: active (exited) since 四 2021-12-23 19:52:43 CST; 1 months 21 days agoDocs: man:interfaces(5)Process: 908 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=0/SUCCESS)Process: 902 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=lo)" ] && udevadm settle (code=exited, status=0/SUCCESS)Main PID: 908 (code=exited, status=0/SUCCESS)Tasks: 0Memory: 0BCPU: 0CGroup: /system.slice/networking.serviceWarning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.