From nobody@FreeBSD.ORG  Sat Sep 16 06:21:41 2000
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Date: Sat, 16 Sep 2000 06:21:41 -0700 (PDT)
From: pino@dohd.org
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Subject: Telnetd locks up when trying to connect via NCSA telnet (DOS)
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>Number:         21310
>Category:       misc
>Synopsis:       Telnetd locks up when trying to connect via NCSA telnet (DOS)
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    mikeh
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Sep 16 06:30:03 PDT 2000
>Closed-Date:    Mon Oct 1 22:34:01 PDT 2001
>Last-Modified:  Mon Oct 01 22:34:15 PDT 2001
>Originator:     Martijn van Buul
>Release:        4.1
>Organization:
Eindhoven University of Technology
>Environment:
FreeBSD toad.stack.nl 4.1-STABLE FreeBSD 4.1-STABLE #0: Sat Aug 12 00:32:30 CEST 2000     johans@toad.stack.nl:/toad.mnt/usr/sources/4.1/obj/toad.mnt/usr/sources/4.1/sys/toad  i386
>Description:
Granted, this is not really a bug in FreeBSD 4.1, but it *used* to work with previous releases:

NCSA Telnet (the old DOS program) does not reply with a "DONT" to unknown WILL-options. This locks up telnetd, since it waits for the negotiation to settle. 
>How-To-Repeat:
use the archaic DOS-based NCSA Telnet, and try to connect to a host running FreeBSD 4.1. Telnetd will lock up, before even displaying a login message.
>Fix:


>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->feedback 
State-Changed-By: mikeh 
State-Changed-When: Thu Jun 28 20:15:59 PDT 2001 
State-Changed-Why:  
This sounds like a bug in the NCSA client. Is this still a problem 
with a newer client? 


Responsible-Changed-From-To: freebsd-bugs->mikeh 
Responsible-Changed-By: mikeh 
Responsible-Changed-When: Thu Jun 28 20:15:59 PDT 2001 
Responsible-Changed-Why:  
I'll followup. 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=21310 
State-Changed-From-To: feedback->closed 
State-Changed-By: mikeh 
State-Changed-When: Mon Oct 1 22:34:01 PDT 2001 
State-Changed-Why:  
Feedback timeout. 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=21310 
>Unformatted:
