Comcast Blocking SSH Traffic?
I don’t use Comcast for internet access (or anything else, for that matter), and I don’t know anyone who does, so I can’t independently confirm this - but a comment left not-too-long ago on a post here about bypassing Comcast’s blocking of P2P traffic (i.e. bittorrent file-sharing) suggests that Comcast might have recently (in the last week) initiated some new program which breaks SSH traffic on (the standard) port 22. Whatever your views on filesharing, disrupting SSH is not acceptable behaviour from an ISP, because it has very legitimate - and very important - uses quite unrelated to filesharing.
I’m extremely interested in hearing from anyone who can confirm, deny, or provide further insight into the current availability of port 22 from Comcast’s network. Leave a comment on this post, or contact me through this page if you’ve anything to say.