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Plugin: python.d.plugin Module: bind_rndc


Monitor ISCBind (RNDC) performance for optimal DNS server operations. Monitor query rates, response times, and error rates to ensure reliable DNS service delivery.

This collector uses the rndc tool to dump (named.stats) statistics then read them to gather Bind Name Server summary performance metrics.

This collector is supported on all platforms.

This collector only supports collecting metrics from a single instance of this integration.

Default Behavior


If no configuration is given, the collector will attempt to read named.stats file at /var/log/bind/named.stats


The default configuration for this integration does not impose any limits on data collection.

Performance Impact

The default configuration for this integration is not expected to impose a significant performance impact on the system.


Metrics grouped by scope.

The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.

Per ISC Bind (RNDC) instance

These metrics refer to the entire monitored application.

This scope has no labels.


bind_rndc.name_server_statisticsrequests, rejected_queries, success, failure, responses, duplicate, recursion, nxrrset, nxdomain, non_auth_answer, auth_answer, dropped_queriesstats
bind_rndc.incoming_queriesa dimension per incoming query typequeries
bind_rndc.outgoing_queriesa dimension per outgoing query typequeries


The following alerts are available:

Alert nameOn metricDescription
bind_rndc_stats_file_size bind_rndc.stats_sizeBIND statistics-file size



Minimum bind version and permissions

Version of bind must be >=9.6 and the Netdata user must have permissions to run rndc stats

Setup log rotate for bind stats

BIND appends logs at EVERY RUN. It is NOT RECOMMENDED to set update_every below 30 sec. It is STRONGLY RECOMMENDED to create a bind-rndc.conf file for logrotate.

To set up BIND to dump stats do the following:

  1. Add to 'named.conf.options' options {}: statistics-file "/var/log/bind/named.stats";

  2. Create bind/ directory in /var/log: cd /var/log/ && mkdir bind

  3. Change owner of directory to 'bind' user: chown bind bind/

  4. RELOAD (NOT restart) BIND: systemctl reload bind9.service

  5. Run as a root 'rndc stats' to dump (BIND will create named.stats in new directory)

To allow Netdata to run 'rndc stats' change '/etc/bind/rndc.key' group to netdata: chown :netdata rndc.key

Last, BUT NOT least, is to create bind-rndc.conf in logrotate.d/:

/var/log/bind/named.stats {

rotate 4
create 0644 bind bind
rndc reload > /dev/null

To test your logrotate conf file run as root: logrotate /etc/logrotate.d/bind-rndc -d (debug dry-run mode)



The configuration file name for this integration is python.d/bind_rndc.conf.

You can edit the configuration file using the edit-config script from the Netdata config directory.

cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config python.d/bind_rndc.conf


There are 2 sections:

  • Global variables
  • One or more JOBS that can define multiple different instances to monitor.

The following options can be defined globally: priority, penalty, autodetection_retry, update_every, but can also be defined per JOB to override the global values.

Additionally, the following collapsed table contains all the options that can be configured inside a JOB definition.

Every configuration JOB starts with a job_name value which will appear in the dashboard, unless a name parameter is specified.

Config options
update_everySets the default data collection frequency.5no
priorityControls the order of charts at the netdata dashboard.60000no
autodetection_retrySets the job re-check interval in seconds.0no
penaltyIndicates whether to apply penalty to update_every in case of failures.yesno
nameJob name. This value will overwrite the job_name value. JOBS with the same name are mutually exclusive. Only one of them will be allowed running at any time. This allows autodetection to try several alternatives and pick the one that
named_stats_pathPath to the named stats, after being dumped by nrdc/var/log/bind/named.statsno


Local bind stats

Define a local path to bind stats file

named_stats_path: '/var/log/bind/named.stats'


Debug Mode

To troubleshoot issues with the bind_rndc collector, run the python.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

  • Navigate to the plugins.d directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the plugins setting under [directories].

    cd /usr/libexec/netdata/plugins.d/
  • Switch to the netdata user.

    sudo -u netdata -s
  • Run the python.d.plugin to debug the collector:

    ./python.d.plugin bind_rndc debug trace

Do you have any feedback for this page? If so, you can open a new issue on our netdata/learn repository.