CentOS/Ubuntu修改IP

## CentOS vi /etc/sysconfig/network-scripts/ifcfg-enp3s0 ```ini TYPE=Ethernet PROXY_METHOD=none BROWSER_ONLY=no # BOOTPROTO=dhcp # 注释掉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=enp3s0 UUID=5508de66-197a-473a-b0cd-3a2fb95e2f2b DEVICE=enp3s0 ONBOOT=yes # 启用网卡 BOOTPROTO=static IPADDR=192.168.31.100 # 根据你的网络情况填写 NETMASK=255.255.255.0 # 根据你的网络情况填写 GATEWAY=192.168.31.2 # 根据你的网络情况填写 DNS1=114.114.114.114 # 根据你的网络情况填写 DNS2=8.8.8.8 # 根据你的网络情况填写 ``` centos6的网卡重启方法：service network restart centos7的网卡重启方法：systemctl restart network ## Ubuntu sudo vi /etc/netplan/00-installer-config.yaml ```yaml network: ethernets: ens33: #配置的网卡的名称 addresses: [192.168.31.100/24] #配置的静态ip地址和掩码 dhcp4: no #关闭DHCP，如果需要打开DHCP则写yes optional: true gateway4: 192.168.31.2 #网关地址 nameservers: addresses: [114.114.114.114,8.8.8.8] #DNS服务器地址，多个DNS服务器地址需要用英文逗号分隔开 version: 2 renderer: networkd #指定后端采用systemd-networkd或者Network Manager，可不填写则默认使用systemd-workd ``` sudo netplan apply 新版本ubuntu gateway4 已被弃用，用下面的方式 ``` network: ethernets: eno1: dhcp4: no addresses: [192.168.31.253/24] optional: true routes: - to: default via: 192.168.31.1 nameservers: addresses: [114.114.114.114,8.8.8.8] version: 2 ```