OT: RE: VNC behind Watchguard SOHO

[William Hooper]

Seak, Teng-Fong said:
> 	There're lots of talks about SSH and I'm quite interested.  Where can I
> find more theoretical and technical stuffs?

Way OT, so you'll excuse me if I'm brief.  Most of these have *nix
specific info, but the concepts are still valid.

For SSH:
http://www.openssh.org/ (THE open source SSH solution)
http://ssh.com/products/tectia/server/ (Commercial SSH that used to be SSH
Secure Shell)

VPN:
http://www.tldp.org/HOWTO/VPN-HOWTO/theory.html
http://computer.howstuffworks.com/vpn.htm


> OTOH, a question of
> terminology: setting a SSH tunnel is the same as setting up a VPN tunnel?

Generally not.  SSH tunneling is generally used for a single app, where
VPN is used for all apps.  Note that if one really wanted to, you can
tunnel PPP over SSH making a sort of "poor mans" VPN.

>  How does VPN work?

It creates a transparent "tunnel" that makes your machine look and act
like it is on the network at the other end of the tunnel.

> 	It seems that there're two kinds of VPN's.  One is a single client to a
> server.  The other is a whole network to another network (it's called
> gateway to gateway?).

Yes, one connects a machine to a remote network (client to server) and the
other connects two whole networks together, creating one logical network
(gateway to gateway).

-- 
William Hooper