linux – Wget有效,Ping没有

Virtuozzo虚拟化Debian 4有一些异常(我知道,我会尽快升级这个,但有依赖).我们在这个网站上运行了一些网站.一个观点几天前,exmi4无法向某些人发送邮件.我将使用live.com作为exampledomain！

所以这些人中的一些人收到了邮件而一些人没收到邮件.
有些邮件被困在队列中,2天后他们就出去了!!
我的Nagios从未出现过互联网连接或磁盘空间问题

现在我想安装“挖掘”以了解他是如何解决dns请求的.而这个Debian告诉我他不知道挖…

简而言之,Debian能够下载具有确切IP甚至wget live.com的网站,但它无法ping通live.com.

我99％肯定网络是正确的,路由也是！

以下是我的一些例子：

wget live.com

下载网站

ping live.com
ping http://www.live.com
ping http://live.com

收益：

编辑：

我现在使用heise.de不再是live.com了.
我发现我可以使用它的IP地址ping heise.de服务器.

@H_55_28@myserver:~# ping 193.99.144.85 PING 193.99.144.85 (193.99.144.85) 56(84) bytes of data. 64 bytes from 193.99.144.85: icmp_seq=1 ttl=248 time=12.7 ms 64 bytes from 193.99.144.85: icmp_seq=2 ttl=248 time=12.6 ms 64 bytes from 193.99.144.85: icmp_seq=3 ttl=248 time=12.9 ms 64 bytes from 193.99.144.85: icmp_seq=4 ttl=248 time=13.1 ms 64 bytes from 193.99.144.85: icmp_seq=5 ttl=248 time=13.1 ms --- 193.99.144.85 ping statistics --- 5 packets transmitted,5 received,0% packet loss,time 4001ms rtt min/avg/max/mdev = 12.671/12.924/13.163/0.238 ms

编辑2：

@H_55_28@myserver:/etc/apt# dig heise.de ; <<>> DiG 9.3.4-P1.2 <<>> heise.de ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY,status: NOERROR,id: 40551 ;; flags: qr rd ra; QUERY: 1,ANSWER: 1,AUTHORITY: 5,ADDITIONAL: 3 ;; QUESTION SECTION: ;heise.de. IN A ;; ANSWER SECTION: heise.de. 2266 IN A 193.99.144.80 ;; AUTHORITY SECTION: heise.de. 1622 IN NS ns.pop-hAnnover.de. heise.de. 1622 IN NS ns.s.plusline.de. heise.de. 1622 IN NS ns.plusline.de. heise.de. 1622 IN NS ns2.pop-hAnnover.net. heise.de. 1622 IN NS ns.heise.de. ;; ADDITIONAL SECTION: ns.plusline.de. 265 IN A 212.19.48.14 ns.pop-hAnnover.de. 5113 IN A 193.98.1.200 ns2.pop-hAnnover.net. 15150 IN A 62.48.67.66 ;; Query time: 2 msec ;; SERVER: 193.200.112.80#53(193.200.112.80) ;; WHEN: Tue Oct 9 13:03:50 2012 ;; MSG SIZE rcvd: 216

[mpenning@tsunami tests]$dig +short @193.200.113.30 live.com
65.55.206.154
[mpenning@tsunami tests]$dig +short @193.200.112.80 live.com
65.55.206.154
[mpenning@tsunami tests]$

[mpenning@tsunami tests]$ping -w 1 live.com
PING live.com (65.55.206.154) 56(84) bytes of data.

--- live.com ping statistics ---
1 packets transmitted,0 received,100% packet loss,time 0ms

[mpenning@tsunami tests]$

[mpenning@tsunami tests]$ping heise.de
PING heise.de (193.99.144.80) 56(84) bytes of data.
64 bytes from redirector.heise.de (193.99.144.80): icmp_req=1 ttl=241 time=144 ms
64 bytes from redirector.heise.de (193.99.144.80): icmp_req=2 ttl=241 time=144 ms
64 bytes from redirector.heise.de (193.99.144.80): icmp_req=3 ttl=241 time=144 ms
64 bytes from redirector.heise.de (193.99.144.80): icmp_req=4 ttl=241 time=143 ms
^C
--- heise.de ping statistics ---
4 packets transmitted,4 received,time 3002ms
rtt min/avg/max/mdev = 143.734/144.344/144.730/0.598 ms
[mpenning@tsunami tests]$