From owner-freebsd-questions Wed Feb 21 15:40:38 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id PAA10285 for questions-outgoing; Wed, 21 Feb 1996 15:40:38 -0800 (PST) Received: from fslg8.fsl.noaa.gov (fslg8.fsl.noaa.gov [137.75.131.171]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id PAA10280 for ; Wed, 21 Feb 1996 15:40:36 -0800 (PST) Received: by fslg8.fsl.noaa.gov (5.57/Ultrix3.0-C) id AA15367; Wed, 21 Feb 96 17:40:27 -0600 Received: by emu.fsl.noaa.gov (1.38.193.4/SMI-4.1 (1.38.193.4)) id AA15494; Wed, 21 Feb 1996 16:40:26 -0700 Date: Wed, 21 Feb 1996 16:40:26 -0700 Message-Id: <9602212340.AA15494@emu.fsl.noaa.gov> From: Sean Kelly To: nirva@zynet.com Cc: freebsd-questions@freebsd.org In-Reply-To: <199602212050.NAA32483@thelair.zynet.com> (message from Danny Dulai on Wed, 21 Feb 1996 13:50:59 -0700) Subject: Re: Telnet Slowdown Sender: owner-questions@freebsd.org Precedence: bulk >>>>> "Danny" == Danny Dulai writes: Danny> I am trying to telnet from a FreeBSD 2.1.0 machine to Danny> a FreeBSD machine, and it is VERY slow, it takes a few Danny> minutes for my login prompt to appear (this is over a 28.8k Danny> link). However, when I telnet to a Linux machine and then Danny> telnet to the FreeBSD machine, its an acceptable speed. Danny> Pings from the FreeBSD to the FreeBSD machines are Danny> normal. Rlogin and FTP are a bit better than telnet, but Danny> not much... still that horrible slowdown. Danny> Any suggestions on a solution to this problem? Try turning off TCP extensions by entering these two commands (as root): sysctl -w net.inet.tcp.rfc1323=0 sysctl -w net.inet.tcp.rfc1644=0 then see if the telnet's any snappier. If it does help, then edit /etc/sysconfig. Look for the line tcp_extensions=YES and change the YES to NO. -- Sean Kelly NOAA Forecast Systems Laboratory, Boulder Colorado USA I scrambled to the top of the precipice where Nick was waiting. "That was fun," I said. "You bet it was," said Nick. "Let's climb higher." "No," I said. "I think we should be heading back now." "We have time," Nick insisted. I said we didn't, and Nick said we did. We argued back and forth like that for about 20 minutes, then finally decided to head back. I didn't say it was an interesting story. -- Jack Handey