Linux Forums unreachable.

Cameron Hutchison lists at xdna.net
Wed Feb 24 01:23:04 UTC 2010


Tom H <tomh0665 at gmail.com> writes:

>> ray at RaysComputer:~$ traceroute linuxforums.org
>> traceroute to linuxforums.org (174.132.123.98), 30 hops max, 40 byte packets
>> 16  www.linuxforums.org (174.132.123.98)  99.159 ms  98.833 ms  99.290 ms

>> ray at RaysComputer:~$ sudo traceroute -T linuxforums.org
>> 13  te7-2.dsr01.dllstx3.theplanet.com (70.87.253.10)  98.550 ms * *
>> 15  te6-1.car13.dllstx6.theplanet.com (70.87.254.238)  102.195 ms
>> 103.890 ms te5-1.car13.dllstx6.theplanet.com (70.87.254.234)  109.829 ms
>> 30  * * *

>3. I do not understand why traceroute works and traceroute -T does
>not. Could you ip address have been blocked by theplanet.com?!
>Strangely...

I'm weighing in late here, but this might be useful to some.

traceroute uses UDP or ICMP to test reachability. Sometimes these make
it through but http requests do not.

There is a package called tcptraceroute that uses TCP to do the
traceroute. This gives better results because if tcptraceroute can reach
the target, your web browser should be able to as well. If web traffic
is being blocked somewhere, tcptraceroute should find it.

tcptraceroute linuxforums.org 80

That should show you where your HTTP connections are being blocked.





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