Create Alert for BIND DNS application

In5AMe · 27 November 2019 09:19

Hi all,

Is there a way to create alerts regarding BIND DNS graphs?

Example

Create an alert when the value of graph located in Applications BIND with name “Server Results” exceed"a number of failures" to trigger an alert.

Thank you.

slashdoom · 28 November 2019 22:03

Yes, you just have to figure out the application metric name. So on the Server Results graph, depending on what you consider “number of failures” (maybe SERVFAIL and NXDOMAIN?) you could look up the metric names in the application graph include files to get their metric names and create alerts on their value.

github.com

librenms/librenms/blob/master/includes/html/graphs/application/bind_server_results.inc.php#L37


      
              'descr'    => 'Non Authoritative',
              'ds'       => 'qrinaa',
          ];
          $rrd_list[] = [
              'filename' => $rrd_filename,
              'descr'    => 'NX RR Set',
              'ds'       => 'qrin',
          ];
          $rrd_list[] = [
              'filename' => $rrd_filename,
              'descr'    => 'SERVFAIL',
              'ds'       => 'qris',
          ];
          $rrd_list[] = [
              'filename' => $rrd_filename,
              'descr'    => 'NXDOMAIN',
              'ds'       => 'qrind',
          ];
          $rrd_list[] = [
              'filename' => $rrd_filename,
              'descr'    => 'With EDNS(0)',

Possible example…

…would hopeful alert if SERVFAIL OR NXDOMAIN was 10 or more during the polling period.

In5AMe · 6 December 2019 12:59

Thanks a lot for your feedback. It was very helpfull.

Is there any way to create alert regarding the below graph?

2019-12-06_14-57-39

slashdoom · 6 December 2019 18:11

Sure, same deal, you just have to figure out the metric name.

See:

github.com

librenms/librenms/blob/master/includes/html/graphs/application/bind_server_issues.inc.php#L33


        'ds'       => 'rqr',
    );
    $rrd_list[]=array(
        'filename' => $rrd_filename,
        'descr'    => 'Trnctd Rsp Snt',
        'ds'       => 'trs',
    );
    $rrd_list[]=array(
        'filename' => $rrd_filename,
        'descr'    => 'Oth Qry Fail',
        'ds'       => 'oqf',
    );
    $rrd_list[]=array(
        'filename' => $rrd_filename,
        'descr'    => 'Qry Dropped',
        'ds'       => 'qd',
    );
} else {
    d_echo('RRD "'.$rrd_filename.'" not found');
}

so metric == server_oqf