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- From: soner@.cs.pitt.edu.cs.pitt.edu ( & Onder)
- Newsgroups: comp.protocols.tcp-ip
- Subject: Re: PC-NFS SLIP and telnet problem
- Message-ID: <17979@pitt.UUCP>
- Date: 5 Jan 93 17:31:21 GMT
- References: <105803@bu.edu>
- Sender: news@cs.pitt.edu
- Organization: Univ. of Pittsburgh Computer Science
- Lines: 28
- X-Newsreader: Tin 1.1 PL3
-
- apollo@buengc.bu.edu (Doug A. Chan) writes:
- : In article <1992Dec23.043717.1680@colorado.edu> garnett@refuge.Colorado.EDU (Santiago de la Paz) writes:
- : >In article <105528@bu.edu> apollo@buengc.bu.edu (Doug A. Chan) writes:
- : >>Whenever I try to telnet to a host, it just hangs there...
- : >>What is wrong with telnet?
- : >One of the primary reasons why a telnet attempt like this will hang is if
- : >the remote host cannot reverse-lookup the IP address of the host you're
- : >coming from. Make sure that both hosts are forward and reverse-mapped
- : >(just for thoroughness, doncha know) if you're using DNS, or that they're
- : >both in your machine's hosts files.
- :
- : It wasn't any host/IP address problem (FTP, ping, nfsping, NFS, finger all
- : work fine!) The host table is okay... just telnet was broken.
- : I turned on all of PC-NFS' telnet debugging and it got stuck during
- : the initial negotiation (after it has established a connection with
- : the host).
- : -Doug
- Reminds me of some sort of Telnet option negotiation loop or deadlock. Your
- telnet program may be responding WILL to some option but may not be
- properly doing so. Something like this may cause the other system to wait
- indefinitely. The other possibility is the two pairs are entering to
- an WILL/DO or DON'T/WONT kind of negotiation loop. I don't know how PC-NFS
- telnet debugging feature works, but depending on the implementation, I
- think you may not be able to see anything on the trace if a loop occurs.
-
-
- Soner Onder
-
-