From: Myles Uyema <mlists@uyema.net>
To: linux-nfs <linux-nfs@vger.kernel.org>
Subject: linux / automount not respecting sec=sys parameter when NFS server supports sys:krb5
Date: Fri, 8 Apr 2011 16:30:32 -0700 [thread overview]
Message-ID: <BANLkTintp8Hx-D46L0WC6-+JJK=jDvz1KQ@mail.gmail.com> (raw)
We have a Netapp filer (8.0.1) exporting NFSv3 homedirs with -sec=sys:krb5,rw
We have automount using LDAP for homedir mounts, explicitly specifying
sec=sys for all users, except for the krb5 beta testers.
We are rolling out users with kerberos slowly across our linux
machines. However, when a krb5 beta tester accessing any homedir,
Linux and automount will choose to mount that homedir using sec=krb5.
It's quite apparent that /etc/mtab shows the mount parameter as
sec=sys, but /proc/mounts shows the same mount as sec=krb5
/etc/mtab
nfstest101:/vol/krbtest01/testuser /home/testuser nfs
rw,hard,intr,sec=sys,addr=10.21.127.101 0 0
/proc/mounts
nfstest101:/vol/krbtest01/testuser /home/testuser nfs
rw,vers=3,rsize=65536,wsize=65536,hard,intr,proto=tcp,timeo=600,retrans=2,sec=krb5,addr=10.21.127.101
0 0
If testuser then logs in (without a kerberos ticket) they cannot
access their own home directory.
Why is linux/automount ignoring our explicit sec=sys parameter?
Linux 2.6.20 kernel CentOS 5.x
Autofs 5.0.1
mount (util-linux 2.13-pre7)
MIT-Kerberos 5
next reply other threads:[~2011-04-08 23:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-08 23:30 Myles Uyema [this message]
2011-04-10 0:06 ` linux / automount not respecting sec=sys parameter when NFS server supports sys:krb5 Richard Smits
2011-04-16 0:07 ` Myles Uyema
2011-04-16 12:00 ` Richard Smits
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