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Does having an SSH tunnel open increase security risk?

post #1 of 3
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I'm a newb to security and just getting started learning about it, so sorry if this is a dumb question. Does having an SSH tunnel open increase security risk to the end-user who's running it? I'm not asking about the security on the server-side it's connected to, etc (ie - "well, if you're tunneled to a less secure server it is"). What I mean is, does it leave open ports or anything that someone can take advantage of to gain access to your pc. The distro I run (openSUSE) comes with a firewall that blocks all incoming traffic by default, so I just want to make sure I'm not opening up a security hole in it.
    
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post #2 of 3
The client who's using the tunnel? No... it's exactly the same as connecting to any other kind of server.
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Akiyama Mio
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post #3 of 3
Only increases the potential if your box is already compromised (keylogger on client PC, etc).

As far as a connection, you don't open any service ports on the client side to accept incoming connections from anywhere else but your destination server. You're also likely behind a NAT Overload mechanism that refuses any incoming connections unless they are explicitly created by the router for outgoing connectivity.
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