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Re: BIND less restrictive modes and policy



On Mon, Jan 21, 2008 at 02:19:02PM +0100, Florian La Roche wrote:
> > All other will be readable for all. Also complete /var/named/* subtree
> > will be writable by named (for generating core files, DDNS updates,
> > secondary servers, generally for easier configuration).
> > 
> > Has anyone arguments against such change?
> 
> 
> Would it be possible to keep write access within subdirs, so that
> it e.g. is possible to keep master named files owned by root.root?
> (Not sure this buys anything, but still looks good...)
> 

We should make /var/named directory writable for named (upstream has
same opinion, see
https://bugzilla.redhat.com/show_bug.cgi?id=400461#c17). So if We have
this directory writable it is not needed ship
/var/named/{data,slaves,dynamic} subdirectories because non-writable
/var/named directory is only one reason for them. Master zones
installed by default will be root:named 644 (so no write access) and
other perms will be controlled by administrator. So in the end new
schema will be:

- /etc/{named.conf,rndc.conf,rndc.key} + logfile non-readable for
  others (ok, world readable named.conf is quite suspicious so leave
  it private as is)
- /var/named will be writable and read-only permissions will be set
  per-zone by admin
- /var/named/* subdirectories will stop exist and files will be moved
  to /var/named/

Adam

-- 
Adam Tkac, Red Hat, Inc.


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