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Date: Sat, 16 Sep 2000 06:21:41 -0700 (PDT)
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Subject: misc/21310: 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:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Sep 16 06:30:03 PDT 2000
>Closed-Date:
>Last-Modified:
>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:
>Unformatted:


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