Active Directory Kerberos Server and Windows MIT Tools Client

Douglas E. Engert deengert at
Mon May 11 10:24:37 EDT 2009

In addition to what Jeff proposed, you can use the runas command with other
commands. cmd.exe is one, as it then gives you a command window to start
other commands, including explorer or iexplorer, so you only have to
enter the user/password once.

The runas.exe /netonly can also be used on machines not joined to the domain,
to get credentials from the domain, usable on the network.

Also see:
  "Secondary Logon (Run As): Starting Programs and Tools in Local Administrative Context"

And to get explorer to run also see:
  "How do you set the “separate process” flag, then?"
  "How do I tell my admin windows from my normal windows?"

Schreiter,Jonathan M. wrote:
> Hello,
> I currently have an AD 2003 environment that serves as a Kerberos server.  Normally, with a standard Windows XP / Vista client (that is joined to the domain), when I login with a domain account I get a TGT for the AD domain / realm.  This TGT is then used to get tickets for various other services that require Kerberos.  When I run a klist from the MIT tools installed on this client, I show my ticket cache: MSLSA.
> I need to log in with a local account on this same computer (still joined to the domain).  I'd like to be able via command line to enter in my AD credentials to acquire a tgt just as if I was a login from the original CTRL+ALT+DEL screen.
> After logging in locally, I tried to do a simple kinit myuser at MYDOMAIN.COM and it took the password.  However, if I use Internet Explorer to go to an IIS server that requires kerberos authentication, I am still prompted for my username and password.
> I then drilled in to the GUI Network Identity Manager.  Under Kerberos v5 Credential Cache I have Include Windows LSA cache (MSLSA:) checked.  Uner Realms I added a new realm MYDOMAIN.COM.  I added an AD DC for the Kerberos Server, but I left Domains that map to MYDOMAIN.COM empty (not sure what's supposed to go here).
> I then entered my kerberos authentication in to the GUI and it took my password.  However, it still doesn't see the tgt in the MSLSA (if I try to use a klist from the Windows NT Resource Kit).  If I run klist from c:\Program Files\MIT\Kerberos\Bin I get a klist: No credentials cache found (ticket cache API:myuser at MYDOMAIN.COM.  Also, If I try to run IE to hit an IIS web server requiring Kerberos, it still prompts me for my credentials.
> I think I'm almost there - but can someone help me connect the pieces?  Again, I would like to log in to a windows xp / vista computer, enter a username and password to obtain a tgt in the mslsa, so that IE can hit an IIS server that requires kerberos w/o typing in the password again.
> Any help would be GREATLY appreciated.
> Many thanks,
> Jonathan
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  Douglas E. Engert  <DEEngert at>
  Argonne National Laboratory
  9700 South Cass Avenue
  Argonne, Illinois  60439
  (630) 252-5444

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