How Skype Gets Around Firewalls

HardOCP News

[H] News
Joined
Dec 31, 1969
Messages
0
I’m positive that most people, Skype users in particular, will find this article extremely interesting. If you’ve ever wondered how Skype can connect two PC users across the country, both behind firewalls, this article explains it.

Peer-to-peer software applications are a network administrator's nightmare. In order to be able to exchange packets with their counterpart as directly as possible they use subtle tricks to punch holes in firewalls, which shouldn't actually be letting in packets from the outside world.
 

Xilikon

[H]ard|DCer of the Year 2008
Joined
Oct 12, 2004
Messages
14,519
I already knew this and this is precisely why our workplace specifically forbid installing software of this type. It's a real security nightmare if we allow them on the company network/computers.
 
Top