CentOS 配置网卡

• root用户执行 dhclient 会自动分配一个ip，假如是 192.268.31.100
• sudo vi /etc/sysconfig/network-scripts/ifcfg-ens*修改网卡配置
  • BOOTPROTO = static (默认是dhcp)
  • ONBOOT = yes (默认是no)
• 增加字段
  • IPADDR = 192.268.31.100 (ip地址)
  • NETMASK = 255.255.255.0 (子网掩码)
  • GATEWAY = 192.268.31.1 (网关)
  • DNS1 = 119.29.29.29 (DNS)
• 保存，重启网络 systemctl restart network.service

DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=172.16.4.90
NETMASK=255.255.255.0
GATEWAY=172.16.4.254
DNS1=172.16.10.22
DNS2=172.16.10.13