DNS Problem (I think)
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- Re: DNS Problem (I think)
DNS Problem (I think)
14-06-2011 9:25 PM
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The website is www.warminstervbrd.zxq.net and is hosted by Zymic.
To make matters worse, despite refreshing and rebooting, neither of my home computers will open any website with a zxq.net extension. The guys at Zymic have confirmed that my website is running fine and suggest that the problem could be a DNS updating problem at Plusnet.
Can anyone suggest how I can get this resolved as obviously it is making it rather difficult for me to keep my website up to date.
Any help would be appreciated.
Travelman
Re: DNS Problem (I think)
14-06-2011 9:30 PM
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Re: DNS Problem (I think)
14-06-2011 9:38 PM
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"In The Beginning Was The Word, And The Word Was Aardvark."
Re: DNS Problem (I think)
14-06-2011 9:43 PM
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You could try manually setting the DNS in one of your computers network properties, to say 208.67.222.222 (OpenDNS) and 8.8.8.8 (GoogleDNS).
If you can then see your site on that computer but not on the one still using the Plusnet DNS, then you will know where the problem is
Re: DNS Problem (I think)
14-06-2011 9:45 PM
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Re: DNS Problem (I think)
14-06-2011 9:49 PM
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$ ping www.warminstervbrd.zxq.net
PING www.warminstervbrd.zxq.net (67.220.217.230) 56(84) bytes of data.
64 bytes from 67-220-217-230.hosted.static.webnx.com (67.220.217.230): icmp_req=1 ttl=54 time=160 ms
64 bytes from 67-220-217-230.hosted.static.webnx.com (67.220.217.230): icmp_req=2 ttl=54 time=161 ms
64 bytes from 67-220-217-230.hosted.static.webnx.com (67.220.217.230): icmp_req=3 ttl=54 time=160 ms
$ telnet www.warminstervbrd.zxq.net 80
Trying 67.220.217.230...
telnet: connect to address 67.220.217.230: No route to host
Wireshark tells me I got an ICMP response from 212.159.2.101 (some part of plusnet) saying Time-to-live exceeded (Time to live exceeded in transit). I'm on ptn-ag02.
Re: DNS Problem (I think)
14-06-2011 9:57 PM
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Re: DNS Problem (I think)
14-06-2011 9:58 PM
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# traceroute -T -p 80 www.warminstervbrd.zxq.net
traceroute to www.warminstervbrd.zxq.net (67.220.217.230), 30 hops max, 60 byte packets
1 192.168.0.1 (192.168.0.1) 1.801 ms 2.865 ms 4.124 ms
2 lo0-central1.ptn-ag02.plus.net (195.166.128.205) 22.795 ms 24.893 ms 26.670 ms
3 gi2-7-211.ptn-gw01.plus.net (84.92.5.137) 29.559 ms 30.660 ms 32.493 ms
4 tun0.ptn-gw01.plus.net (212.159.2.101) 34.799 ms 36.734 ms 37.685 ms
5 vl69.thn-gw2.plus.net (212.159.3.253) 39.611 ms 41.556 ms 43.045 ms
6 po4.ptn-gw01.plus.net (212.159.1.138) 46.036 ms 45.099 ms 46.398 ms
7 tun0.ptn-gw01.plus.net (212.159.2.101) 47.095 ms 29.515 ms 27.280 ms
8 vl69.thn-gw2.plus.net (212.159.3.253) 29.088 ms 28.790 ms 29.841 ms
9 po4.ptn-gw01.plus.net (212.159.1.138) 29.985 ms 29.382 ms 29.409 ms
10 tun0.ptn-gw01.plus.net (212.159.2.101) 30.954 ms * 22.258 ms
11 vl69.thn-gw2.plus.net (212.159.3.253) 24.078 ms 21.539 ms 22.420 ms
12 po4.ptn-gw01.plus.net (212.159.1.138) 24.892 ms 26.352 ms 28.065 ms
13 tun0.ptn-gw01.plus.net (212.159.2.101) 30.631 ms 32.229 ms 33.886 ms
14 vl69.thn-gw2.plus.net (212.159.3.253) 35.687 ms 37.229 ms 38.902 ms
15 po4.ptn-gw01.plus.net (212.159.1.138) 40.603 ms 42.317 ms 44.768 ms
16 tun0.ptn-gw01.plus.net (212.159.2.101) 46.541 ms 27.928 ms 28.832 ms
17 vl69.thn-gw2.plus.net (212.159.3.253) 27.999 ms 28.189 ms 28.212 ms
18 po4.ptn-gw01.plus.net (212.159.1.138) 27.797 ms 28.333 ms 28.391 ms
19 tun0.ptn-gw01.plus.net (212.159.2.101) 28.604 ms 28.829 ms 28.308 ms
20 vl69.thn-gw2.plus.net (212.159.3.253) 28.428 ms 28.527 ms 28.547 ms
21 po4.ptn-gw01.plus.net (212.159.1.138) 27.702 ms 27.872 ms 28.518 ms
22 tun0.ptn-gw01.plus.net (212.159.2.101) 29.027 ms 28.910 ms 28.361 ms
23 vl69.thn-gw2.plus.net (212.159.3.253) 28.565 ms 28.117 ms 28.518 ms
24 po4.ptn-gw01.plus.net (212.159.1.138) 27.350 ms 27.507 ms 28.210 ms
25 tun0.ptn-gw01.plus.net (212.159.2.101) 28.999 ms 29.118 ms 28.428 ms
26 vl69.thn-gw2.plus.net (212.159.3.253) 28.659 ms 28.459 ms 27.959 ms
27 po4.ptn-gw01.plus.net (212.159.1.138) 27.239 ms 27.366 ms 28.573 ms
28 tun0.ptn-gw01.plus.net (212.159.2.101) 28.414 ms 28.612 ms 27.951 ms
29 vl69.thn-gw2.plus.net (212.159.3.253) 28.957 ms 28.369 ms 29.457 ms
30 po4.ptn-gw01.plus.net (212.159.1.138) 28.319 ms 27.637 ms 27.780 ms
There's a loop. Don't ask me why it's only for port 80.
Re: DNS Problem (I think)
14-06-2011 10:16 PM
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Quote $ mtr -r -c 100 www.warminstervbrd.zxq.net
HOST: my_pc Loss% Snt Last Avg Best Wrst StDev
1. my_gateway 95.0% 100 1.7 2.7 1.4 7.0 2.4
2. lo0-homesurf.pcl-ag07.plus.n 14.0% 100 13.7 17.0 12.8 43.3 5.3
3. gi7-10-855.pcl-gw01.plus.net 96.0% 100 45.5 51.1 13.2 103.1 37.6
4. po4.pcl-gw02.plus.net 10.0% 100 14.0 18.9 12.2 224.7 23.5
5. tun0.pcl-gw01.plus.net 93.0% 100 147.7 66.9 14.2 165.4 67.8
6. 195.50.122.129 4.0% 100 12.8 16.8 12.2 115.3 11.7
7. ae-34-52.ebr2.London1.Level3 94.0% 100 36.7 20.4 13.3 36.7 9.1
8. ae-41-41.ebr1.NewYork1.Level 2.0% 100 81.6 86.3 80.9 164.6 12.4
9. ae-81-81.csw3.NewYork1.Level 3.0% 100 86.7 89.4 81.3 179.3 11.4
10. ae-82-82.ebr2.NewYork1.Level 81.0% 100 82.6 94.3 82.3 161.9 22.3
11. ae-3-3.ebr2.Dallas1.Level3.n 14.0% 100 116.5 123.4 114.9 217.5 14.0
12. ae-92-92.csw4.Dallas1.Level3 7.0% 100 116.6 121.1 114.8 266.3 16.6
13. ae-93-93.ebr3.Dallas1.Level3 90.0% 100 143.2 172.1 117.9 294.7 66.8
14. ae-3-3.ebr2.LosAngeles1.Leve 5.0% 100 156.5 157.7 153.3 245.8 12.2
15. ae-92-92.csw4.LosAngeles1.Le 13.0% 100 160.7 156.0 151.5 225.7 9.0
16. ae-4-90.edge3.LosAngeles1.Le 83.0% 100 200.9 176.2 152.4 270.6 37.0
17. cr1.lax1.us.packetexchange.n 15.0% 100 153.4 160.2 149.6 277.9 18.1
18. 67.199.135.234 85.0% 100 328.5 197.2 145.3 378.3 77.3
19. 67-220-192-106.hosted.static 93.0% 100 155.4 155.4 146.8 164.0 5.8
20. 67-220-217-230.hosted.static 92.0% 100 145.9 175.0 145.7 274.8 50.0
Still working fine using Firefox on Ubuntu with non-Plusnet DNS - despite the apparent packet losses !
Re: DNS Problem (I think)
14-06-2011 10:28 PM
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I think what you are saying is that is is not necessarily an issue with Plusnet as some plusnet users can open it and some can not.
EJS - your last post suggests that you may have found where the problem lies - suggestions as to what I should do next or who I should contact to get it sorted.
Travelman
Re: DNS Problem (I think)
14-06-2011 10:42 PM
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Re: DNS Problem (I think)
14-06-2011 10:53 PM
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Quote $ traceroute -T -p 80 www.warminstervbrd.zxq.net
traceroute to www.warminstervbrd.zxq.net (67.220.217.230), 30 hops max, 44 byte packets
1 my_gateway (192.168.xxx.xxx) 2.481ms 2.507ms 4.261ms
2 lo0-homesurf.pcl-ag07.plus.net (195.166.130.54) 18.047ms 18.635ms *
3 * * *
4 67-220-217-230.hosted.static.webnx.com (67.220.217.230) 39.230ms 22.451ms 22.996ms
Re: DNS Problem (I think)
14-06-2011 11:33 PM
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To me that suggests that the problem is somehow connected to Plusnet, unless you guys can suggest some other reason.
Re: DNS Problem (I think)
14-06-2011 11:45 PM
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Re: DNS Problem (I think)
15-06-2011 12:01 AM
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