On Aug 31, 2005, at 9:42 PM, Jon Drews wrote:
I must say I don't see the advantage of Vpn as compared to regular
SSH. Prehaps I am missing something here but if VPN is going to
project an entire desktop to a client won't that be taxing on the
bandwidth?
The idea is similar, but different. Both methods use some kind of
tunneling to wrap up packets before forwarding them to a remote
location. With ssh tunneling you can only forward a single TCP socket
[1]. A VPN creates a virtual network interface and so can forward
the entire network stack[2]. In the Internet Protocol the two
methods work at different network layers[3] with ssh tunneling
operating at the transport layer and a VPN operating at the network
layer.
That's grossly oversimplifying the process, but is probably close.
Everyone is free to correct me.
[1] a socket is the combination of an IP address, a port, and a protocol
http://en.wikipedia.org/wiki/Socket#Internet_sockets
[2] http://en.wikipedia.org/wiki/Vpn
[3] http://en.wikipedia.org/wiki/Internet_Protocol
Regards,
- Robert
http://www.cwelug.org/downloads
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