[8028] in Kerberos

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Re: Help --- rlogin -x works one way only

daemon@ATHENA.MIT.EDU (Christoph Hoegl)
Wed Sep 18 18:18:06 1996

To: pcl@sable.ox.ac.uk (Paul Leyland)
In-Reply-To: pcl's message of 18 Sep 1996 17:19:03 +0000.
		<PCL.96Sep18181903@sable.ox.ac.uk> 
Cc: kerberos@MIT.EDU
Date: Wed, 18 Sep 1996 23:59:24 +0200
From: Christoph Hoegl <darkwing@bsdd.regensburg.com>

> =

> I've just installed and set up K5B7 on a DEC Ultrix 4.5 KDC and with
> an Ultrix 4.3a client.   This is an experimental setup to enable a few
> of us to explore Kerberos and what it might be able to do for us.  The
> build and install seemed to go reasonably well.
> =

> The present state of play is that I can kinit as myself, pcl@OX.AC.UK,
> on the client and then successfully get an encrypted rlogin session to
> the KDC.
> =

> I cannot get an encrypted session the other way, from the server to the=

> client.  A transcript of a sample session is:
> =

>     % kinit pcl
>     Password for pcl@OX.AC.UK: =

>     % klist
>     Ticket cache: /tmp/krb5cc_ttyp1
>     Default principal: pcl@OX.AC.UK
> =

>     Valid starting      Expires             Service principal
>     18 Sep 96 18:05:54  19 Sep 96 04:05:47  krbtgt/OX.AC.UK@OX.AC.UK
>     % whoami
>     pcl
>     % usr/local/bin/rlogin foo.oucs.ox.ac.uk -x
>     foo.oucs.ox.ac.uk: Connection refused
>     rlogin: kcmd to host foo.oucs.ox.ac.uk failed - Unknown code ____ 2=
55
> =

> foo.oucs.ox.ac.uk is my client machine and that session is running on
> the server with an encrypted session from my client.
> =

> I believe that I have correctly created a host/foo.oucs.ox.ac.uk
> principal and created a /etc/v5srvtab file on the client machine.
> Any suggestions as to where I may be going wrong?
> Responses by email or follow-up are fine.

> Paul

There client and server have to be able to encrypt
your KDC ist able to -> it=B4s telnetd allows to encrypt
your clientmachine doesn=B4t support the encryption and/or couldn=B4t fin=
d the =

right port/programm
Have a look at your inetd.conf / services
and the file ${KERBEROS}/doc/install.{dvi,info}

e.g.

/etc/services
eklogin         2105/tcp              # Kerberos encrypted rlogin
/etc/inetd.conf
eklogin stream  tcp     nowait  root    /usr/local/sbin/klogind klogind -=
k -c =

-e


Christoph

-- =

Christoph Hoegl / darkwing@bsdd.regensburg.com / (Darkwing@berkeley.edu)
Siedlungsstr. 18 93128 Regenstauf Germany  Fax:+49 940270611
Tellerrd. 12a 93720 Berkeley CA USA        Fax:+1 (510) 642 1043



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