[OT] Rogers DNS Games? I Can't Access craigslist.org

Fri Nov 21 15:07:34 UTC 2008

James Knott wrote:
> Stephen wrote:
>> I have Roger's as my ISP.
>>
>> All of my Internet functions work fine.
>>
>> I can access web sites, all except craigslist.org
>>
>> Firefox reports the connection was refused.
>>
>> I ping, the name resolves, but I get no response.
>>
>> I try with IE (Beta) and get flipped over to Google and the results 
>> of a search for craigslist.org
>>
>> Safari reports that it could not connect to the server.
>>
>> What is really strange is that this link works: 
>> https://accounts.craigslist.org/login
>>
>> The Rogers tech verified that the site was up and created a trouble 
>> ticket.
>>
>> Anyone have any ideas on this?
>
> I can ping it, via my Rogers account.  It's likely their server 
> problem if the name resolves to the correct address.  You could try 
> traceroute to see where it goes.  Bear in mind, Rogers does not 
> maintain the records for hosts that are outside of their network.  
> When a DNS request is made to their DNS servers, they refer to a more 
> authoritative DNS server.  It may take multiple attempts, working up 
> through the .org (or other) root server, which then points to a DNS 
> server that's closer to the target.  Rogers may then temporarily cache 
> that DNS info.  Bottom line, if other lookups work fine, it's likely 
> not the Rogers DNS server.

Here's my traceroute:

traceroute 208.82.236.208
traceroute to 208.82.236.208 (208.82.236.208), 30 hops max, 40 byte packets
 1  erx02.tor.pppoe.ca (206.248.154.120)  195.200 ms  169.321 ms  236.154 ms
 2  ae0-2110.border2.pppoe.ca (69.196.136.7)  202.957 ms  132.333 ms  
44.898 ms
 3  xe-3-1-0-11.tor11.ip.tiscali.net (77.67.68.125)  143.781 ms  165.459 
ms  126                                                .374 ms
 4  xe-2-0-0.was12.ip.tiscali.net (89.149.185.9)  210.679 ms  246.306 ms 
89.149.                                                185.5 
(89.149.185.5)  210.952 ms
 5  dcp-brdr-03.inet.qwest.net (63.146.26.9)  280.056 ms 
dcp-brdr-03.inet.qwest.                                                
net (63.146.26.13)  375.944 ms  358.438 ms
 6  phn-core-02.inet.qwest.net (67.14.19.42)  411.853 ms 
phn-core-01.inet.qwest.                                                
net (67.14.19.38)  327.658 ms phn-core-02.inet.qwest.net (67.14.19.42)  
220.359                                                 ms
 7  scd-edge-01.inet.qwest.net (205.171.12.46)  266.405 ms  392.415 ms 
scd-edge-                                                
01.inet.qwest.net (205.171.12.42)  517.973 ms
 8  rtr-qwest-iophx.craigslist.org (65.101.69.178)  484.931 ms  329.948 
ms  412.                                                961 ms
 9  * 208-236-82.208.craigslist.org (208.82.236.208)  353.266 ms  399.805 ms
meng at nemesis:~$ traceroute craigslist.org
traceroute to craigslist.org (208.82.236.208), 30 hops max, 40 byte packets
 1  erx02.tor.pppoe.ca (206.248.154.120)  357.863 ms  394.322 ms  421.798 ms
 2  ae0-2110.border2.pppoe.ca (69.196.136.7)  265.821 ms  333.014 ms  
427.311 ms
 3  xe-3-1-0-11.tor11.ip.tiscali.net (77.67.68.125)  335.023 ms  206.407 
ms  96.789 ms
 4  xe-2-0-0.was12.ip.tiscali.net (89.149.185.9)  153.784 ms 
xe-1-0-0.was12.ip.tiscali.net (89.149.185.5)  81.118 ms 
xe-2-0-0.was12.ip.tiscali.net (89.149.185.9)  204.482 ms
 5  dcp-brdr-03.inet.qwest.net (63.146.26.13)  185.160 ms 
dcp-brdr-03.inet.qwest.net (63.146.26.9)  291.720 ms  254.131 ms
 6  phn-core-02.inet.qwest.net (67.14.19.42)  355.035 ms  311.311 ms 
phn-core-01.inet.qwest.net (67.14.19.38)  309.362 ms
 7  scd-edge-01.inet.qwest.net (205.171.12.46)  289.064 ms 
scd-edge-01.inet.qwest.net (205.171.12.42)  305.148 ms 
scd-edge-01.inet.qwest.net (205.171.12.46)  326.755 ms
 8  rtr-qwest-iophx.craigslist.org (65.101.69.178)  171.522 ms  137.832 
ms  236.595 ms
 9  208-236-82.208.craigslist.org (208.82.236.208)  202.878 ms  181.636 
ms  258.012 ms

Can someone explain why 208-236-82.208.craigslist.org (208.82.236.208) ?
Why the hyphens?

Regards

Meng

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