Red Hat Bugzilla – Bug 623068
Failed to init credentials: KDC has no support for encryption type
Last modified: 2011-06-28 10:44:10 EDT
Description of problem:
We got a mixed network of Windows 2003 and 2008R2 KDCs.
kinit successfully retreives a ticket if service discovery leads to one of the 2008R2 KDCs, if it leads to a 2003 Server, I got an error message like:
KDC has no support for encryption type
If session key enctypes are forced using:
default_tkt_enctypes = arcfour-hmac-md5
default_tgs_enctypes = arcfour-hmac-md5
everything works fine but shouldn't auto-negotiation work as well?
This problem ONLY occurs if dns_lookup_kdc = true and no KDCs are set.
If one of the 2003 Servers is defined manually and dns lookup is off, ticket is retreived correctly.
Sorry, I was wrong, problem even exists if KDC is specified manually.
After re-verification it really turned out that it only occurs on service discovery.
default_tkt_enctypes = aes-256-cts arcfour-hmac-md5
default_tgs_enctypes = aes-256-cts arcfour-hmac-md5
works as well. So I wonder why default enctypes needs to be set if dns lookup is enabled?
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