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I'm having problems setting up Single Sign On on my Mac (Snow Leopard). My program was giving the error

accept_sec_context: Unspecified GSS failure. Minor code may provide more information: \
Key table entry not found (000d0000:96c73ab5)

When using the Mac built in library (/usr/lib/libgssapi_krb.dylib). It works fine with Likewise.

I'd set up an identity for myself in Ticket Viewer, and issued a ticket. I'm now trying to go through the set up process manually from the terminal. So far so good, up until I get to the Install the Slave KDCs step, where I can't start kadmin. I get the following output:

$ kadmin
Authenticating as principal me/admin@CORP.ORG with password.
kadmin: Client not found in Kerberos database while initializing kadmin interface

I added myself to the keytab using ktadd in kadmin.local, but this hasn't worked. I'm stumped as to how to progress from here.

Update

Running kadmin -p me prompts me for my password, but still rejects me with error:

kadmin: Database error! Required KADM5 principal missing while initializing kadmin interface
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1 Answer

up vote 2 down vote accepted

"Client not found in database" means the principal you used, me/admin, does not exist.

"Required KADM5 principal missing" means that your Kerberos database is missing principals for kadmin/fqdn.of.the.kdc@CORP.ORG as well as the legacy fallback kadmin/admin@CORP.ORG. Add them through kadmin.local.

"Missing keytab entry" usually refers to the service principal on the server's keytab (e.g. host/fqdn.of.my.server).

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