Month: March 2007

SSH Local Port Forwarding Made Easy

SSH Local Port Forwarding Made Easy

I’ve been using this for a while now, and have found it a great little trick for accessing services that are blocked due to a firewall.

It’s pretty simple, you just have a few parts to the command string.  The first command argument tells ssh to forward a local port (LP) to a remote machine Remote) on a remote port (RP).  The second part is something you’re probably familiar with, the destination that you’re connecting to (Destination).

An example with the abbreviations above would be:

Say for example, you ran the command “ssh -L 1234:myInternalServer.com:80 myExternalServer”.  In order to access port 80 on myInternalServer.com you’d open up your web browser and point it to http://localhost:1234.  It’s as easy as that!

Problems with AllPeers in Firefox

Problems with AllPeers in Firefox

I found out recently, like a lot of people, that the AllPeers Firefox extension went Open Source. So naturally, I realized the hype it created and installed it.

Unfortunately, I never tested it, because none of my friends wanted to install it, so there it sat right there in my Firefox installation, dormant. It wasn’t until today that I had problems with it.

I restarted my computer today, and tried to start up Firefox, and it did nothing… So I started up the console, and started Firefox. It started starting up fine, with loading of AllPeers, then had a segmentation fault error…

I ended up having to remove the extension finally. To do this use the following steps:

  1. Open up your terminal emulator
  2. Navigate to ~/.mozilla/firefox
  3. There should be a directory there that has a bunch of seemingly random characters. Mine’s tr1d6tmr.default. Navigate to that directory.
  4. Navigate to the extensions directory.
  5. Execute ‘find ./ | grep peers’ and delete the directory things were found in.

Now if you were having the same problems as me, you should be able to start Firefox again!

Jon Howe

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