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Date: Sun, 01 Aug 2010 21:00:12 +0200
From: =?ISO-8859-1?Q?Michael_Gr=FCnewald?=
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To: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
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Cc: freebsd-questions@freebsd.org, me <gurpreet007@gmail.com>
Subject: Re: sudo -K/-k ineffective
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Hi,

Lowell Gilbert wrote:
> me<gurpreet007@gmail.com>  writes:
>> Upon doing sudo<some-command>  as a normal user (non-root), sudo asks for
>> password only once, subsequent invocations of sudo doesn't ask for password
>> - even though I do sudo -k or sudo -K in between.
>> Although sudo starts asking for password after the time stamp expiry.
> [...]
> I don't think sudo even knows about pam(3), so I'm not sure what could
> be happening here...

Maybe there is something funny with sudo's timestamp directory?  If it 
is mounted with option `noatime' it may have consequences similar to 
what you discribe.

Michael