Thursday, March 31, 2011

Is Comcast Blocking SSH?

There have been suspicions in the past that Comcast blocked SSH. This was supposedly selective, and geared towards blocking users "abusing" SSH for file sharing.

Well, I use SSH for work, to log into a linux box I host websites on, and I dont' share files doing this. Today, after a long successful history of use, I can't SSH into the box on my Comcast Business Class connection. Nothing on my network has changed, and I was able to connect a terminal as late as yesterday.

I can get a terminal through my AT&T Business Class DSL connection, my iPhone's 3g connection, and my Air Card's 3G connection. I rebooted my Comcast modem, and still no dice.

Is Comcast playing dirty poker and blocking SSH connections on Port 22?

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