Setting up home server – security issues?

[pulck]

Wake-On-LAN can be done, but only from another machine on the local area network.

Ah, okay. Had thought that it was possible over the internet.

[Lars Noodén]

It looks like you might be able to do it if your router supports DD-WRT

http://www.dd-wrt.com/wiki/index.php/WOL

or, obviously, any other form of Linux.