虚拟机Centos设置静态ip

NAT模式相当于宿主机内部的一个虚拟网络,与宿主机公用一个IP.桥接相当于和宿主机平行,独立的IP和网卡.

1 设置开机自启

# vi /etc/sysconfig/network-scripts/ifcfg-ens33
将no改为yes
# ONBOOT=yes
# systemctl restart network #重启网络

2 下载网络工具

如果有就不需要安装了

# yum install net-tools

3 查看网卡信息

# ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.31.132  netmask 255.255.255.0  broadcast 192.168.31.255
        inet6 fe80::928c:470b:c58a:906b  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:d8:cb:ba  txqueuelen 1000  (Ethernet)
        RX packets 25785  bytes 35787047 (34.1 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 14758  bytes 925754 (904.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

其中ip地址是 192.168.31.132,掩码是255.255.255.0,mac地址是00:0c:29:d8:cb:ba
在看一下网关地址,网络管理->NAT设置->网关地址

4 将网卡信息录入到配置文件中

# vi /etc/sysconfig/network-scripts/ifcfg-ens33
IPADDR=本机分配的ip地址
GATEWAY=网关
DNS1=114.114.114.114
NETMASK=子网掩码
HWADDR=mac地址
# systemctl restart network
# ping www.baidu.com