I am a big fan of
dns_lookup_realm = true
in /etc/krb5.conf. Of course, our AD administrators maintain good SRV
records for the various AD controllers -- so there's that.
also they maintain a load-balanced pool per location for those apps that
are not site-aware. Worst case, I could set my kdc = that.
That LB pool will always been right, as they slip in and out AD controllers.
Spike
On Fri, Oct 5, 2018 at 6:04 AM Conwell, Nik <nik(a)bu.edu> wrote:
Hi all, just curious what do you all do for Active Directory domain
controllers in the krb5.conf? Seems like "realm join" by default populates
the krb5.conf with the hostnames of all the AD KDCs discovered for the
domain. All good until we decided we are going to rename the KDCs to all
new names. Windows boxes don't care, apparently they will automatically
rediscover based on the "_srv_" record queries. But from an SSSD-AD and
krb5.conf perspective we may end up having to "realm leave" "realm
join"
the linux boxes to pick up the new DCs or possibly edit the krb5.conf to
change the discovered servers to be just "_srv_" so it will be dynamically
queried.
What are you all doing for SSSD-AD and the list of AD Domain Controllers?
Do you manage the krb5.conf list directly, or do you just always change the
list to be "_srv_"?
Thanks.
-nik
*Nik Conwell *| Manager, Systems Engineering
Boston University Information Services & Technology
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