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# Munin plugin for named. This is a bit experimental, we will have to see
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# which statistics prove to have any meaning to get a feel with what happens
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# Nicolai Langfeldt (janl@linpro.no) 27.8.2003
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# Enviroment variables:
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# logfile - set which log file to use
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# Revision 1.1 2004/01/02 18:50:00 jimmyo
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# Renamed occurrances of lrrd -> munin
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# Revision 1.1.1.1 2004/01/02 15:18:07 jimmyo
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# Import of LRRD CVS tree after renaming to Munin
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# Revision 1.3 2003/11/26 15:57:21 jimmyo
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# Milliqueries not of interest...
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# Revision 1.2 2003/11/26 14:47:31 jimmyo
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# Revision 1.1 2003/11/26 09:26:04 jimmyo
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# Plugin contribution by Nicolai Langfeldt
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# REQUIREMENTS: in your named.conf you must have statistics-interval set:
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# statistics-interval 1;
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# The number is in minutes. At each interval just 3 lines is dumped.
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# It can be desturbing if you usually read the logs yourself, but
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# a 1 minute interval ensures very updated information to munin.
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# 5 minutes is the maximum I'd say.
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# The name of the file where syslog puts daemon output - ie the named
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# statistics output. On solaris this is /var/adm/messages, on most
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# linuxes it is /var/log/messages. But on Debian it is
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# /var/log/daemon which is read restricted so we have to run as a user
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# with read rights, or remove the restrictions.
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SYSLOGFILE=${logfile:-/var/adm/messages}
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# ----------------------------------------------------------------------
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ret=`echo "$2" | sed "s/.*$1=\([0-9]*\).*/\1/"`
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if [ ! -f $SYSLOGFILE ] ; then
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echo $SYSLOGFILE is unavailable to me >&2
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# Get out the last XSTATS and NSTATS lines
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XSTATS=`grep 'named.*XSTATS' "$SYSLOGFILE" | tail -1`
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# NSTATS=`grep 'named.*NSTATS' "$SYSLOGFILE" | tail -1`
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# We concentrate on what clients communicate with us about
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# and counters that we suspect can indicate abuse or error conditions
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# Received Queries: Total volume of queries received.
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# This should be nice and smooth.
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echo "queries.value `pick_stat RQ "$XSTATS"`"
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# Sent Answers: This should be the same as RQ except when there are
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# errors. May not be very interesting.
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echo "answers.value `pick_stat SAns "$XSTATS"`"
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# Sent and Forwarded queries, in a proxy setting this should be
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# the same as Received Queries (?)
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echo "forwarded.value `pick_stat SFwdQ "$XSTATS"`"
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# Received Zone Transfer queries - should be low. High value could
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# indicate some odd error or some kind of abuse
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echo "axfr.value `pick_stat RAXFR "$XSTATS"`" # Received AXFR Qs
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# Received TCP connections: These are used for zone transfers or
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# oversized (>512 byte) answers. A high value here could indicate
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# that you need to trim down the size of your answers somehow (Do you
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# have a ton of MXes or NSes that gets reported back?), or this could
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# be due to an error. Or it could be due to abuse.
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echo "tcp.value `pick_stat RTCP "$XSTATS"`"
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# Get a total of errors
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`pick_stat RNXD "$XSTATS"` +
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`pick_stat RFail "$XSTATS"` +
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`pick_stat RErr "$XSTATS"` +
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`pick_stat SErr "$XSTATS"` +
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`pick_stat RIQ "$XSTATS"` +
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`pick_stat RFErr "$XSTATS"` ";
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echo "errors.value `expr $errexpr`"
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graph_title BIND DNS Query statistics
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graph_vlabel Queries / minute
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queries.label Queries
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queries.cdef queries,60,*
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answers.label Answers
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answers.cdef answers,60,*
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forwarded.label Forwarded
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forwarded.type DERIVE
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forwarded.cdef forwarded,60,*
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errors.cdef errors,60,*
added
removed
node/node.d/named.in
