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Munin (contrib)
Last change
2018-04-07
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License
GPL-2.0-only

bind9_server_stats

Sadly there is no documentation for this plugin

#!/bin/bash
#
# Plugin to monitor Bind9 Name Server Stats
#
# Author:
#    Dave Fennell <dave@microtux.co.uk>
#
# Created:
#    20th December 2012
#
# License:
#    GPLv2
#
# Usage:
#    Place in /etc/munin/plugins/ (or link it there using ln -s)
#

# change those to reflect your bind configuration (use plugin configuration)
# stat file
if [ "$stat_file" = "" ]; then
	stat_file="/var/cache/bind/named.stats"
fi

# rndc path
if [ "$rndc" = "" ]; then
	rndc="/usr/sbin/rndc"
fi

# Blank the stats file (else stats are appended not replaced)
rm ${stat_file}

# Ask to bind to build new one
${rndc} stats

# The section we are looking for in the stats.
section="Name Server Statistics"

# Get all the lines in the section:
# - cat the file
# - use sed to get lines after (and excluding) the section start tag
# - use sed to get lines up to (and excluding) the next section start tag
# - use grep to remove any lines starting with a [
cmd='cat "/var/cache/bind/named.stats" | sed "0,/^\+\+ '${section}' \+\+/d" | sed -e "/^\+\+/,\$d" | grep -v "^\["'

# Config mode.
if [ "$1" = "config" ]; then
	echo 'graph_args --lower-limit 0'
	echo 'graph_category dns'
	echo 'graph_info '${section}' for the Bind9 Name Server'
	echo 'graph_scale no'
	echo 'graph_title Bind9 '${section}
	echo 'graph_vlabel requests/${graph_period}'

	# Output the stat configs.
	eval ${cmd} | while read num name
	do
		# Shorten some names.
		label=${name//queries resulted in /}
		label=${label// answer/}

		# All lowercase.
		label=$(echo "$label" | tr 'A-Z' 'a-z')

		# Now change names to all have no spaces.
		key=${label// /_}

		echo ${key}.label ${label}
		echo ${key}.info ${name}
		echo ${key}.type COUNTER
	done

	# If dirty config capability is enabled then fall through
	# to output the data with the config information.
	if [ "${MUNIN_CAP_DIRTYCONFIG:-0}" != "1" ]; then exit 0; fi
fi

# Output the stats.
eval ${cmd} | while read num name
do
	# Shorten some names.
	label=${name//queries resulted in /}
	label=${label// answer/}

	# All lowercase.
	label=$(echo "$label" | tr 'A-Z' 'a-z')

	# Now change names to all have no spaces.
	key=${label// /_}

	echo ${key}.value ${num}
done