Re: Kerberos V5 Authentication for a Telnet Session

From: Eric Denekamp (ericd_at_infosupport.com)
Date: 10/27/05 

Date: Thu, 27 Oct 2005 03:32:13 -0700

afaik, this is not possible by default. I heard about some organisations
who have done this by reprogramming the telnet service and the telnet client.
So if I am correct, you have to dig into Visual Studio .NEt and the platform
SDK to accomplish this.
too bad though, you are not the only one to want this.

good luck,

Eric Denekamp
mailto:ericd@infosupport.com

> Here is what i want to do. I want to establish a telnet connection
> from a client to a server. The authentication mechanism that i want to
> use for telnet connection is kerberos v5.
>
> What I Have Done So Far:
> I have setup two virtual machines (both windows 2003 server enterprise
> edition) on VMWare. I have made one of them a server (a domain
> controller) and other a client. On the server, i
> have installed Active Directory. On the server i registered a new user
> in active directory. Using this user i can log in to the domain from
> clients machine. Now, from the clients machine, when i try to connect
> to the server using the windows builtin telnet client, the login
> attempt fails. The message that is displayed on the console is
> "Failure
> in initializing the telnet session. Shell process may not have been
> launched.". In the server event viewer, there is an error saying
> "Error
> in creating CMD proces. System Error: Access is denied.". After
> searching the internet, i found out a couple of proposed solutions for
> the first error. One of them was for win xp 64 bit edition. Tried it
> but no avail. The 2nd
> one said to make sure that Secondary Logon service is running. Tried
> that too but no affect at all. If i unset NTLM auth from the client
> side then it simply asks me to enter user name and password. Obviously
> this is not what i want. I want the user to be authenticated by means
> of kerberos v5 protocol. So now i am wondering how can i make kerberos
> v5 authentication to work with telnet. Any help would be highly
> appreciated.
> Thanks,
>
> sarshah
>

Relevant Pages

  • Re: Kerberos V5 Authentication for a Telnet Session
    ... Neither Microsoft's Telnet Server nor their Telnet client support ... Kerberos authentication. ...
    (comp.protocols.kerberos)
  • Re: Kerberos V5 Authentication for a Telnet Session
    ... I think neither Windows telnet client nor Windows telnet server support ... Kerberos authentication - with the built-ins, ...
    (microsoft.public.windows.server.security)
  • Re: network programming in c
    ... >> I thought that kind of server used telnet. ... > communicate with their client with CRLF-delimited ASCII-strings. ... protocols (or ASCII, for that matter, though since eg DNS uses ASCII ... Telnet itself doesn't use plain-text commands. ...
    (comp.programming)
  • Re: Exchange 2003/IMAP Username-PW Problem
    ... event viewer on the server or the client. ... client to migrate files to Exchange. ... I have the same problem connecting via telnet on ...
    (microsoft.public.exchange.connectivity)
  • Re: SBS 2003 SP 1 on MSDN disks
    ... the PPPoE client, which I believe it operate as, even if Earthlink does ... So, in order to do this, I have to telnet into the device, at ... I have started the Telnet service on the SBS2003 server. ...
    (microsoft.public.windows.server.sbs)