There is a krb5.conf setting that I see suggested in a few guides and that points to DNS problems as well, and that is `rdns`. It is suggested to set it to `false`.
If there is no /etc/krb5.conf file, then one has to be created just for this:
[libdefaults]
rdns = false
And, while at it, maybe also add "defaults_realm = <yourrealm>"
There is a krb5.conf setting that I see suggested in a few guides and that points to DNS problems as well, and that is `rdns`. It is suggested to set it to `false`.
If there is no /etc/krb5.conf file, then one has to be created just for this:
[libdefaults]
rdns = false
And, while at it, maybe also add "defaults_realm = <yourrealm>"