[36874] in Kerberos
Re: Ticket expires 120 seconds early?
daemon@ATHENA.MIT.EDU (Stephen Carville (Kerberos List))
Thu Apr 2 10:34:41 2015
Message-ID: <551D536B.9010406@opayq.com>
Date: Thu, 02 Apr 2015 07:34:19 -0700
From: "Stephen Carville (Kerberos List)" <b44261a2@opayq.com>
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My first suspicion is that the clock on the client is about 120 seconds
ahead of the KDC.
On 04/02/2015 06:16 AM, Robbert Eggermont [Masked] wrote:
> Hi,
>
> For some time (years) I've been using tickets with a 1 minute lifetime
> (in cron jobs). Lately, this is giving me problems:
>
> $ kinit -l 1m -k -t <keytab> <principal> && kvno 'host/<host>'
> kvno: Ticket expired while getting credentials for host/<host>@<domain>
>
> With RHEL7 (krb5-1.12.2), the problems seem to be much worse, so I did a
> little experimentation which seems to indicate some kind of limit at 120s:
>
> $ kinit -l 120s -k -t <keytab> <principal> && kvno 'host/<host>'
> kvno: Ticket expired while getting credentials for host/<host>@<domain>
> $ kinit -l 121s -k -t <keytab> <principal> && kvno 'host/<host>'
> host/<host>@<domain>: kvno = 3
>
> The first fails 90% of the time, the second succeeds 90% of the time.
>
> What am I seeing here, and is it supposed to be like this?
>
> Thanks,
>
> Robbert
>
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