From: David Bartley (dtbartlecsclub.uwaterloo.ca)
Date: Wed Oct 03 2007 - 19:50:38 CDT

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If you have nfs-mounted maildir's with root_squash enabled, pam_mail will
not work, in the sense that it always displays 'No mail' regardless of
whether or not you actually have mail. This is because pam_mail scans the
maildir directory as root, and root_squash then denies pam_mail access to
the maildirs. I've included a patch that calls seteuid to switch to the
user being logged in, scans the maildir, and reverts to the previous
effective uid.

I have deployed a patched pam_mail to a few machines and have not noticed
any problems.

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• TEXT/x-diff attachment: pam_mail_root_squash.patch

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