[Novices] SSH Tutorials / Guides?

[yvh11a]

Hey all,

Does anyone know of a good online guide to SSH or (better) a book with a 
chapter or three devoted to it?  Ideally, something that includes info 
on working with both the client side and the server side would be great.

As it stands, I know just enough to realize I need to know a lot more 
before I can fiddle around with it and be confident I haven't mistakenly 
opened up a bunch of security holes.

Thanks,
Steve V.