0、解決虛擬機連接不上外網，不能互相ping通
直接在linux系統下，編輯修改如下文件：
//編輯文件/etc/sysconfig/network-scripts/ifcfg-eth0 [root@localhost install]# vi /etc/sysconfig/network-scripts/ifcfg-eth0 //查看文件/etc/sysconfig/network-scripts/ifcfg-eth0 [root@localhost install]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=static IPADDR=192.168.20.129 NETMASK=255.255.255.0 GATEWAY=192.168.20.2 DNS1=101.198.199.200 DNS2=114.114.114.114 //重啟網卡 [root@localhost install]# service network restart 正在關閉接口 eth0： [確定] 關閉環回接口： [確定] 彈出環回接口： [確定] 彈出界面 eth0： [確定] //嘗試ping主機 [root@localhost install]# ping 192.168.1.125 PING 192.168.1.125 (192.168.1.125) 56(84) bytes of data. 64 bytes from 192.168.1.125: icmp_seq=1 ttl=128 time=0.893 ms 64 bytes from 192.168.1.125: icmp_seq=2 ttl=128 time=0.747 ms 64 bytes from 192.168.1.125: icmp_seq=3 ttl=128 time=0.583 ms ^C --- 192.168.1.125 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2952ms rtt min/avg/max/mdev = 0.583/0.741/0.893/0.126 ms //嘗試ping外網百度 [root@localhost install]# ping www.baidu.com PING www.a.shifen.com (115.239.211.112) 56(84) bytes of data. 64 bytes from 115.239.211.112: icmp_seq=1 ttl=128 time=42.6 ms 64 bytes from 115.239.211.112: icmp_seq=2 ttl=128 time=39.1 ms ^C --- www.a.shifen.com ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1653ms rtt min/avg/max/mdev = 39.128/40.876/42.625/1.760 ms
注意：
DNS一定要和主機的一樣，如下圖：
1、 如果還是不能解決，可以嘗試將文件按照如下格式修改：
//編輯文件/etc/sysconfig/network-scripts/ifcfg-eth0 [root@localhost install]# vi /etc/sysconfig/network-scripts/ifcfg-eth0 //查看文件/etc/sysconfig/network-scripts/ifcfg-eth0 [root@localhost install]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 [root@localhost install]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 TYPE=Ethernet BOOTPROTO=static DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6INIT=no IPV6_AUTOCONF=no IPV6_DEFROUTE=no IPV6_PEERDNS=no IPV6_PEERROUTES=no IPV6_FAILURE_FATAL=no NAME=eth0 UUID=17c77773-bc60-40d0-b4e3-e9f22ca1841b DEVICE=eth0 ONBOOT=yes IPADDR=192.168.20.129 PREFIX=24 GATEWAY=192.168.20.2 DNS1=101.198.199.200 DNS2=114.114.114.114 HWADDR="00:0C:29:0B:91:B7"
注意：
UUID的獲取：
[root@localhost install]# uuidgen eth0
17c77773-bc60-40d0-b4e3-e9f22ca1841b
HWADDR的獲取：
這下就能虛擬機完美上網了：
