[Bug 695968] [NEW] kerberized telnetd is not working (Error: All terminal ports in use.)

[Mark Pröhl]

Public bug reported:

Binary package hint: krb5-telnetd

when trying to log in via kerberized telnet, the client fails with the
following error:

maxm at lx01:~$ /usr/bin/telnet -a  lx02.example.com
Trying 192.168.100.110...
Connected to lx02.example.com (192.168.100.110).
Escape character is '^]'.
telnetd: All terminal ports in use.
Connection closed by foreign host.
maxm at lx01:~$ echo $?
1
maxm at lx01:~$ 

Client (lx01) and server (lx02) are running Ubuntu 10.04. The krb5.conf
option "allow_weak_crypto" is set to "yes" on the client, the KDC and
the server. User maxm has a valid TGT.

Replacing the daemon on lx02 by telnetd from krb5-appl-1.0.1
(http://web.mit.edu/kerberos/dist/krb5-appl/1.0/krb5-appl-1.0.1-signed.tar)
solves the problem.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: krb5-telnetd 1:1.0~alpha1-1
ProcVersionSignature: Ubuntu 2.6.32-27.49-generic 2.6.32.26+drm33.12
Uname: Linux 2.6.32-27-generic i686
Architecture: i386
Date: Fri Dec 31 12:56:30 2010
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100406)
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: krb5-appl

** Affects: krb5 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 lucid

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https://bugs.launchpad.net/bugs/695968

Title:
  kerberized telnetd is not working (Error: All terminal ports in use.)