[928] in linux-net channel archive
Re: telnet/ftp/rlogin/rsh not working between Linux machines. (fwd)
daemon@ATHENA.MIT.EDU (Nick Simicich)
Sat Aug 19 07:59:34 1995
Date: Fri, 18 Aug 1995 08:24:10 -29900
From: Nick Simicich <njs@scifi.maid.com>
To: Bradley McLean <bradm@phoenix.silverplatter.com>
cc: Bin Li <bli@umgis.merrick.miami.edu>, linux-net@vger.rutgers.edu
In-Reply-To: <Pine.LNX.3.91.950817144428.13724A-100000@phoenix.silverplatter.com>
On Thu, 17 Aug 1995, Bradley McLean wrote:
>
> On Wed, 16 Aug 1995, Bin Li wrote:
>
> > > > > telnet linux3
> > > > >
> > > > > I got the following response:
> > > > >
> > > > > Connected to linux3.....
> > > > > Escape characters is '^]'
> > > > > Connection closed by foreign host
>
> > "linux3" is running "in.telnetd" because it accepts connections from all
> >...
> > problem might have something to do with PC/TCP, so I recompiled the
> > kernel but am still having the same problem. Any other thoughts?
>
> No solutions, but the general comment that I've experienced this problem
> regularly over the last 2 1/2 years of using linux. Sometimes it doesn't
> like a particular machine, sometimes a particular OS, sometimes the
> status changes over the course of time. Telnets to or from Telebit
> routers were always dicey. Sometimes 5 or 6 successive attempts would
> result in it working. Sometimes opening a FTP connection to the same
> host appeared to change something so that the telnet would work. Last
> week, I was telnetting from london to boston from a Win95 client
> (Ughh!). It worked fine for two days, then suddenly stopped, and I then
> would telnet to a sun in boston, and then to the linux box (1.1.59). It
> worked fine. I've seen the same problem in .99 kernels, 1.[0-3][0-9]
> kernels. I suspect it's some kind of timing subtlety in TCP, but I've
> never had the time to set up a comprehensive test bed.
I've frequently found this when my wife telnets in from her PC, on our
household ethernet, to read her e-mail. It usually seems to be a program
stuck on the PTY.
If you can start two telnets at the same time, and it is a pty problem,
frequently one of them will work.
Nick Simicich - njs@scifi.emi.net - (last choice) njs@bcrvm1.vnet.ibm.com
http://scifi.emi.net/njs.html -- Stop by and Light Up The World!
