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contrib-munin/plugins/network/dns/bind9_server_stats

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#!/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" = "" ]; 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