Created attachment 428465 [details]
Description of problem:
When my ticket expires or gets close to expiring, krb5-auth-dialog starts spinning, using up lots of CPU time and network bandwidth continuously re-acquiring both DNS responses for kerberos servers and successful TGS requests.
Version-Release number of selected component (if applicable):
Very reproducible; it always happens when my credentials are just about to expire.
Steps to Reproduce:
1. Configure krb5-auth-dialog
2. Get credentials
3. Allow to expire
CPU time and network usage shoot up.
krb5-auth-dialog should only query one kerberos server once for a TGS--and it really should only do this *after* prompting me for a password, given that I could be away for hours and the credential it gets could have a massive time skew.
I will attach my krb5.conf and a text wireshark packet dump of a minute or two of traffic as generated by krb5-auth-dialog
Created attachment 428466 [details]
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