1、vmnet2用于内网之间的访问，外部网络访问不了它。它可以访问外网，要想访问外网就必须有真实主机共享网络给它
2、[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
BROWSER_ONLY=no
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
DEFROUTE=yes
NAME=ens33
DEVICE=ens33
IPADDR=192.168.50.155
NETMASK=255.255.255.0
GATEWAY=192.168.50.1
DNS1=202.96.0.133
DNS2=114.114.144.114
ONBOOT=yes
3、[root@localhost ~]# ping www.baidu.com
PING www.a.shifen.com (61.135.169.125) 56(84) bytes of data.
64 bytes from 61.135.169.125 (61.135.169.125): icmp_seq=1 ttl=55 time=2.88 ms
64 bytes from 61.135.169.125 (61.135.169.125): icmp_seq=2 ttl=55 time=2.65 ms