2014.06.24晚上新装虚拟机ping问题小结：

connect: Network is unreachable

ping: unknown host www.qq.com

我日 忽然通 大部分时间不通 搞什么

[root@mode ~]# ping www.163.com

PING 163.xdwscache.glb0.lxdns.com (61.179.107.52) 56(84) bytes of data.

64 bytes from 61.179.107.52: icmp_seq=1 ttl=50 time=33.0 ms

64 bytes from 61.179.107.52: icmp_seq=2 ttl=50 time=33.3 ms

64 bytes from 61.179.107.52: icmp_seq=3 ttl=50 time=32.6 ms

64 bytes from 61.179.107.52: icmp_seq=4 ttl=50 time=32.5 ms

--- 163.xdwscache.glb0.lxdns.com ping statistics ---

4 packets transmitted, 4 received, 0% packet loss, time 3000ms

rtt min/avg/max/mdev = 32.520/32.910/33.392/0.335 ms

[root@mode ~]# ping www.qq.com

PING www.qq.com (182.254.8.146) 56(84) bytes of data.

64 bytes from 182.254.8.146: icmp_seq=1 ttl=53 time=73.4 ms

64 bytes from 182.254.8.146: icmp_seq=2 ttl=53 time=48.6 ms

64 bytes from 182.254.8.146: icmp_seq=3 ttl=53 time=52.3 ms

64 bytes from 182.254.8.146: icmp_seq=4 ttl=53 time=48.3 ms

64 bytes from 182.254.8.146: icmp_seq=5 ttl=53 time=50.7 ms

64 bytes from 182.254.8.146: icmp_seq=6 ttl=53 time=47.7 ms

--- www.qq.com ping statistics ---

6 packets transmitted, 6 received, 0% packet loss, time 5001ms

rtt min/avg/max/mdev = 47.758/53.552/73.419/9.023 ms

[root@mode ~]# ping www.baidu.com

PING www.a.shifen.com (119.75.218.77) 56(84) bytes of data.

64 bytes from 119.75.218.77: icmp_seq=1 ttl=57 time=5.25 ms

64 bytes from 119.75.218.77: icmp_seq=2 ttl=57 time=4.82 ms

64 bytes from 119.75.218.77: icmp_seq=3 ttl=57 time=19.1 ms

64 bytes from 119.75.218.77: icmp_seq=4 ttl=57 time=4.64 ms

64 bytes from 119.75.218.77: icmp_seq=5 ttl=57 time=2.91 ms

--- www.a.shifen.com ping statistics ---

5 packets transmitted, 5 received, 0% packet loss, time 4003ms

rtt min/avg/max/mdev = 2.914/7.357/19.146/5.948 ms

[root@mode ~]# ping www.baidu.com               

ping: unknown host www.baidu.com

[root@mode ~]# ping www.baidu.com               

connect: Network is unreachable

桥接虚拟机的date时间同步要注意一下是否正常，已经关机了，重启之后要注意观察一下！

解决办法：

[root@mode yum.repos.d]# date

201465:11:17 CST

[root@mode yum.repos.d]# LANG=en

[root@mode yum.repos.d]# date

Wed Jun 25 02:11:22 CST 2014

本文出自 “Try to be brave” 博客，谢绝转载！

ping 问题网络翻滚问题小结