[SR-Users] $HN(d) null when DNS cache is enabled

[Julien Klingenmeyer]

Hello,



I have a small question regarding the internal DNS resolver.

Here is my current Kamailio DNS configuration:



dns_try_naptr=on

use_dns_failover=yes

use_dns_cache=yes



I need the $HN variable inside my script and it appeared while testing that
$HN(d) was null (and consequently $HN(f) was only containing the hostname
part of the FQDN).

I know /etc/hosts file is bypassed when the DNS cache is activated, so I
thought Kamailio was using the domain parameter set in the /etc/resolv.conf
file in such cases in order to get the domain. But it was not.



I figured out Kamailio correctly retrieves the domain name as long as it is
explicitly part of the /etc/hostname file.

Is my understanding correct or am I wrong somewhere? What if /etc/hostname
does not contain the domain name but hostname only?



Thanks!



Cheers

Julien
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