Firefox w/PAC file over SOCKS5 not working

Posted on 2011-02-14
Medium Priority
Last Modified: 2012-05-11
I am having issues getting a (relatively) straightforward proxy setup with Firefox working.

The setup is:

1. Putty used to open an SSH tunnel with SOCKS5 (this works)
2. Firefox configured to use a PAC file for certain web addresses (*.specialdomain.com)
3. Remote DNS enabled in firefox

The setup works on an XP box no problem.

It is not working on the Win7 box nor on a "clean" XP VM on the Win7 box.

Troubleshooting steps so far include:

- painstakingly verifying the browser and pac file settings including clean install of FF, etc.
- disabling all AV and firewalling on the win7 and vm xp boxes
- repeat above several times

Any help or insight on additional troubleshooting w/b greatly appreciated.

Thanks in advance.

Question by:tfcallahan
  • 3

Author Comment

ID: 34892049
p.s. More detailed info available if you think you can help :)

Accepted Solution

tfcallahan earned 0 total points
ID: 35087831
Sorry for leaving this hanging.

I actually found the solution.

The putty/ff setup was using port 8001.

We found a conflict on that port by:

1. turned on logging in Putty and saw that remote forwarding was being denied on port 8001.
2. ran NETSTAT –a –p TCP | find “8001” with Putty inactive and saw that something was listening on port 8001.
3. then ran NETSTAT –a –b –p TCP and looked for the 8001 entry and saw that an app called mlb-nexdef-autobahn was the one listening on port 8001.
4. his app is the Major League Baseball streaming video plugin
5. uninstalled this plug-in and everything worked.
Another solution would be to change the port in Putty and the Pac file to be somethign other than the confilicting port.


Author Comment

ID: 35087862
Please do not delete as there is a solution that I posted.

Please close but not delete.



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