Integrating BIND9 with external graphing like Cacti

[Phil Mayers]

On 13/10/10 15:50, Phil Mayers wrote:
> On 13/10/10 15:16, Eivind Olsen wrote:
>> Has anyone here made use of the XML statistics interface in BIND9, to get
>> some numbers into Cacti (or another similar tool)? If so, how, and which
>> numbers did you feel were worth turning into graphs?
>
> Yes.
>
> We have a system where local scripts on our machines can plugin to the
> net-snmp daemon via "pass_persist" and export a table. I wrote a script
> to present the XML stats to an SNMP table.
>
> We basically graph, total, successful and failed queries; it's more just
> to get an idea of load than anything.

I've had a few queries asking to see these scripts, so rather than reply 
individually to them all, I'll re-post my reply here:

===

It's tied into our homegrown server monitoring and management platform;
I can't just extract it I'm afraid.

There are Perl and Python libraries which implement the difficult bits
of pass_persist helper scripts; e.g.

http://search.cpan.org/~nito/SNMP-MibProxy-1.0771/bin/mibProxy
http://search.cpan.org/~saper/SNMP-Extension-PassPersist-0.03/
http://github.com/nagius/snmp_passpersist

In essence, it's just a python script that reads the pass_persist 
command from stdin, and looks the OIDs up in a dictionary; the 
dictionary is cached and re-built when >30 seconds old by requesting the 
XML.