解决复制CentOS VM虚拟后不能上网

1. 打开目录 /etc/sysconfig/network-scripts/ifcfg-xxxx

2. 编辑ifcfg-xxxx 修改内容为：
   HWADDR=00:0c:29:44:8e:e7
   TYPE=Ethernet
   BOOTPROTO=dhcp
   DEFROUTE=yes
   PEERDNS=yes
   PEERROUTES=yes
   IPV4_FAILURE_FATAL=no
   IPV6INIT=yes
   IPV6_AUTOCONF=yes
   IPV6_DEFROUTE=yes
   IPV6_PEERDNS=yes
   IPV6_PEERROUTES=yes
   IPV6_FAILURE_FATAL=no
   NAME=enp2s0
   UUID=5b0a7d76-1602-4e19-aee6-29f57618ca01
   ONBOOT=yes

3. 控制台输入ifconfig，结果如下

   [root@localhost ~]# ifconfig
   ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
           inet 10.12.129.236  netmask 255.255.252.0  broadcast 10.12.131.255
           inet6 fe80::20c:29ff:fedb:2094  prefixlen 64  scopeid 0x20<link>
           ether 00:0c:29:db:20:94  txqueuelen 1000  (Ethernet)
           RX packets 2532  bytes 947758 (925.5 KiB)
           RX errors 0  dropped 0  overruns 0  frame 0
           TX packets 804  bytes 116326 (113.5 KiB)
           TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

4. 修改步骤2中HWADDR数值与ens33中ether数值00:0c:29:db:20:94一样

5.

service network restart