[Dclug] Remote X security
djr1952 at hotpop.com
Thu Mar 1 19:50:19 EST 2007
On Thu, 2007-03-01 at 14:32 -0800, Andre Lehovich wrote:
> > Where was the TCP over TCP level of communication involved?
> > If you think it's in the 'telnet' level think again and then go read
> > about what the 'telnet' is program again. Note the existences of a
> > 'telnet' like program may even predate TCP/ip being generally available.
> The connection between the terminal server driving the modem and the
> workstation running the SLiRP server was over TCP.
You are sure that TCP was used for that link?
There are/where a number of different protocols use(d) for connections
between "terminal server driving the modem" and workstations/whatever.
> PPP was going over that
> connection, and then on top of PPP was a second layer of TCP.
The following is from <http://sunsite.nus.sg/pub/slirp/features.html>
SLiRP is a TCP/IP emulator over the (C)SLIP/PPP link-level protocols
which allows a normal user with a shell account on a Unix host turn it
into something like a (C)SLIP/PPP account.
Also see: <http://sunsite.nus.sg/pub/slirp/>
Notice the "TCP/IP emulator over", SLiRP is at best acting as the
carrier level for any TCP/IP communication it is carry-ing over it.
So even after reading a lot about SLiRP and/or stating the above, I
still have to agree with the statement "In some situations TCP over TCP
works quite well."
Don E. Groves, Jr.
$ /usr/games/fortune :
Many enraged psychiatrists are inciting a weary butcher. The butcher is
weary and tired because he has cut meat and steak and lamb for hours and
weeks. He does not desire to chant about anything with raving
psychiatrists, but he sings about his gingivectomist, he dreams about a
single cosmologist, he thinks about his dog. The dog is named Herbert.
-- Racter, "The Policeman's Beard is Half-Constructed"
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