SSH or VPN servers

[hess303]

What are SSH/VPN servers, what do they do, and how are they acquired and used?

[PrntRhd]

A couple of links to do some reading:
SSH Wiki
http://en.wikipedia.org/wiki/Secure_Shell

and VPN
http://en.wikipedia.org/wiki/VPN

SSH is using secure shell in a server/client environment to enable encrypted communications.

VPN is a protocol that allows encrypted tunneling through the public Internet.

Variable or other professionals, if you see this can you add some practical info for the OP?

[hess303]

PrntRhd, Thanks! Both, for the informative links and the function-descriptions.