Master file permission denied

[Anand Buddhdev]

On 28/06/2023 20:44, Daniel Armando Rodriguez via bind-users wrote:

Hi Daniel,

[snip]

> # ls -alh /etc/bind/zonas/
> drw-r-S--- 2 bind bind 4,0K jun 28 14:55 .
> drwxr-sr-x 3 root bind 4,0K jun 28 15:06 ..
> -rwxr-xr-- 1 bind bind  323 ene 16 10:59 133.45.210.170.in-addr.arpa
> -rwxr-xr-- 1 bind bind  394 ene 16 10:58 
> 3.3.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.6.2.6.4.4.0.0.0.1.1.0.0.0.8.2.ip6.arpa
> -rwxr-xr-- 1 bind bind 5,4K jun 22 12:40 db.unau.edu.ar
> 
> Error messages
> 
> zone unau.edu.ar/IN: loading from master file 
> /etc/bind/zonas/db.unau.edu.ar failed: permission denied
> zone unau.edu.ar/IN: not loaded due to errors.
> 
> Named is running as bind user
> 
> I would be grateful for any enlightening ideas.

The directory /etc/bind/zonas is missing the eXecute bits for the owner 
and group, and so BIND can't read files in the directory. You can 
restore the permissions with:

chmod ug+x /etc/bind/zonas

I'll also note that the zone files in /etc/bind/zonas don't need their 
execute bits to be set. It doesn't really do any harm, but it is good 
practice to not have execute bits on data files.

Regards,
Anand