Linux Forums unreachable.

[Ray Parrish]

Cameron Hutchison wrote:
> 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.
>   
Here is what I get, do you see anything here?

ray at RaysComputer:~$ tcptraceroute linuxforums.org 80
The specified type of tracerouting is allowed for superuser only
ray at RaysComputer:~$ sudo tcptraceroute linuxforums.org 80
[sudo] password for ray:
traceroute to linuxforums.org (174.132.123.98), 30 hops max, 40 byte packets
 1  * * *
 2  eugn (67.42.192.201)  41.391 ms  42.544 ms  43.604 ms
 3  eugn (67.42.193.65)  45.158 ms  46.477 ms *
 4  * * *
 5  * * *
 6  * * *
 7  * * *
 8  cr2.st6wa.ip.att.net (12.122.146.174)  99.907 ms  100.419 ms  101.893 ms
 9  cr2.dvmco.ip.att.net (12.122.1.77)  103.766 ms  104.555 ms *
10  * * *
11  * * *
12  * 12.87.41.150 (12.87.41.150)  99.369 ms *
13  * * *
14  * * *
15  te5-1.car13.dllstx6.theplanet.com (70.87.254.234)  110.729 ms 
te6-1.car13.dllstx6.theplanet.com (70.87.254.238)  107.712 ms  104.150 ms
16  * * *
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *
ray at RaysComputer:~$


Later, Ray Parrish

-- 
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