[PLUG] Re: Can someone explain this ssh behavior?

[Tom Diehl <tdiehl@rogueind.com>]

On Thu, 4 Mar 2004, kaze wrote:

> When I ssh over the Internet from home to this Linux box I'm setting up as a
> SpamAssassin server elsewhere the session just hangs there, and will
> timeout.
> 
> If I remotely access a Windows box at that same location and ssh with the
> Putty client to the box I'm one router hop away and can log in fine. Once
> this ssh session (from the Windows box at the same location) is up, the
> original one from home directly to the box will work - even if I start the
> one from home first it just hangs there, but once the local one logs in the
> remote one pops up with the logon prompt.
> 
> What's going on here? Is this by design or just some weirdness?

Could be several things. Is port 22 open through the firewall/router?
If using NAT is port 22 forwarded to the machine you are trying to reach?
What do you see if you do ssh -vvv machine_name? Is it even trying to connect
or is something blocking it. If you have the lft program try 
lft -d 22 machine_name. See where it craps out. Just because windoze remote 
desktop works does not mean ssh will. Windows remote desktop uses port 3398
by default. ssh uses port 22.

HTH,

Tom
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