Ownership of /var/named Changes on Reboot.
kraduk at googlemail.com
Thu Jun 17 08:37:06 UTC 2010
On 17 June 2010 08:47, Matthew Seaman <m.seaman at infracaninophile.co.uk>wrote:
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> On 17/06/2010 04:21:34, Peter Boosten wrote:
> > On 17-6-2010 4:58, Robert Huff wrote:
> >> Martin McCormick writes:
> >>> Is there a way to keep /var/named owned by bind across
> >>> reboots?
> >> Yes. I had this happen for a long time.
> >> The bad news is it had been years since I fixed it, and I no
> >> longer remember exactly what I did. I will keep trying.
> > Permissions are set using the mtree files:
> > /etc/mtree/
> Furthermore, the default setup *is* for named to run as an unprivileged
> process. The setup is very carefully designed so that named doesn't
> have write permission on the directory where its configuration files are
> stored, or on directories that contain static zone files, but it does
> have write permission on directories it uses for zone files AXFR'd from
> a master, or zone files maintained using dynamic DNS.
> This used to generate a warning from bind about not having a writable
> current working directory -- which was basically harmless and could be
> ignored. However recent changes mean bind needs a writable working
> directory, so the latest layouts include /var/named/etc/namedb/working
> - --
> Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
> Flat 3
> PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
> JID: matthew at infracaninophile.co.uk Kent, CT11 9PW
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so the logical extension to this is by changing the ownership of the
directory to bind, you are making the configuration directory writeable, and
therefore you are actually lowering security.
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