目录
Ubuntu 16.04.5 LTS、Ubuntu 20.04.6 LTS
查看网卡信息
ifconfig
ifconfig -aUbuntu 16.04.5 LTS、Ubuntu 20.04.6 LTS
修改配置
vim /etc/network/interfaces# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
auto enp159s0f0
iface enp159s0f0 inet static
address 192.168.0.10
netmask 255.255.255.0
gateway 192.168.0.1
dns-nameservers 10.0.0.1
应用生效
systemctl status networking
systemctl restart networking如果状态日志中出现找不到enp159s0f0的报错，请检查配置文件中的enp159s0f0是否书写正确！
Ubuntu 18.04.6 LTS
修改配置
vim /etc/netplan/01-netcfg.yamlnetwork:
version: 2
renderer: networkd
ethernets:
eno1:
dhcp4: no
addresses: [192.168.0.20/24]
gateway4: 192.168.0.1
nameservers:
search: [ubuntu]
addresses:
- "192.168.0.20"应用生效
netplan apply如果IP地址没有变化，请确认网卡是否正确，一般是有IPv6地址的网卡！
Centos 8.0
cd /etc/sysconfig/network-scripts
ls
vim ifcfg-对应网卡修改IP地址
修改配置
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=enp125s0f0
UUID=5ff52bad-2bdb-3d7f-a8b2-57a9bafasdfg
ONBOOT=yes
AUTOCONNECT_PRIORITY=-999
DEVICE=enp125s0f0
IPADDR=192.168.0.30
PREFIX=22
GATEWAY=192.168.0.1
DNS1=10.0.0.1
DNS2=10.0.0.2
DNS3=10.0.0.3
IPV6_PRIVACY=no
应用生效
service NetworkManager restart
nmcli c reload
nmcli c up enp125s0f0如果IP地址在子网掩码范围内但不是设置的值，请确认 BOOTPROTO 参数配置是否正确！
将IP地址置空
修改配置
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=enp125s0f0
UUID=5ff52bad-2bdb-3d7f-a8b2-57a9bafasdfg
ONBOOT=yes
AUTOCONNECT_PRIORITY=-999
DEVICE=enp125s0f0应用生效
service NetworkManager restart
nmcli c down enp125s0f0
nmcli c show
如果出现 No suitable device found for this connection 错误，则说明修改已生效，enp125s0f0已不存在！
确认修改是否生效
ping 192.168.0.10
ping 192.168.0.20如果IP地址正常但无法ping通，请确认：
联网的网口MAC地址与修改的网卡MAC地址是否对应
是否存在两个网卡IP地址相同，可使用以下命令启用/禁用网卡：
# 启用网卡
ifconfig enp125s0f1 up
# 禁用网卡
ifconfig enp125s0f1 down参考资料：
