Sunday, June 27, 2004

sshd through dns

A while ago, I wrote about how t-mobile silently traps SMTP traffic. Boing Boing has an article about some one who as done a presentation on how ssh could be tunnled through dns.

This seems like this could be a way to get free internet access from an internet cafe. But, I also think that this would be pretty easy to block. All a dns server would have to do is to not forward dns queries that are not in a known format.

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