KRB5KDC_ERR_ETYPE_NOSUPP in protocol transition

Nikhil Mishra nikhilm at
Mon Jul 27 05:17:56 EDT 2009

Hi All ,

I made some changes in krb5_get_credentials to work for protocol
transition and constrained delegation .

The issues I have is following :

I am able to fetch an S4U2Self ticket.While I make a S4U2proxy request
It gives me KRB5KDC_ERR_ETYPE_NOSUPP error .

The machine setup is following :

1. Domain controller : Windows server 2003 SP2 with all updates later .
2. MIT kerberos 1.6.5 with changes for protocol transition and 
constrained delegation.
I used setspn utility to create this service principal .

default-tkt-enctypes = rc4-hmac des-cbc-md5 des-hmac-sha1

I have tried other combinations like removing rc4-hmac  , but nothing
works .

I have written small utilities based on MIT kerberos library to make
S4U2Self request on behalf of some other user .



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