macOS Sequoia Kerberos authentication to MIT Kerberos server not working after upgrade

I just set up a Kerberos realm for my personal domain, and found that macOS Sequoia 15.1 on my MacBook Air doesn't seem to have an /etc/krb5.conf file.

You'll need to add one (or add the equivalent to your directory server, if you're bound to one) so Kerberos on your Mac knows about your realm.

I added an /etc/krb5.conf with the necessary information modeled on the one shown by "man krb5.conf" and was able to authenticate just fine after that.

ghorchem wrote:

after upgrading to Sequoia Kerberos stopped working. It worked fine before. The error I'm getting when trying it from the Terminal is: "kinit: krb5_get_init_creds: unable to reach any KDC in realm SERVER-1.MSP.GARY-SPRINGFIELD-MO.NET, tried 0 KDCs" I haven't changed any thing on my firewall either.

Did you try turning off the firewall and compare your results....(?)

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Forgive what may be a dumb question on my part, but have you confirmed with MIT that their authentication server is operational and that they haven't made any configuration changes? I only ask because once I spent a long time trying to figure out why a system I was working on wouldn't connect to a server only to find out that the server had been turned off. It would be a strange coincidence to have that happen at the same time you upgraded, but I've seen less likely things happen.

Regards.

Just FYI, "MIT Kerberos" does not refer to "the Kerberos server at MIT" but "the MIT distribution of Kerberos," rather than "the Heimdal distribution of Kerberos."