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06Oct

HOWTO make online listeners graphics for Icecast2 (with rrdtool)

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Hi, this is another line-by-line on commandline real world example on howto create graphics for icecast2 online listeners by me - B2 ;) Enjoy

Well , lets assume we have some linux/unix distro with installed rrdtool , php, apache and running icecast2 with four mount points - instudio54, play, playhigh, and playlow.
Now , we want to know how many online listeners we have at each mount point. In this example we have status file with this info looks like :

MountPoint,Connections,Stream Name,Current Listeners,Description,Currently Playing,Stream URL
Global,Client:4785 Source: ,,,,
/instudio54,,,6,, - ,/play,,,5,, - ,/playhigh,,,10,, - ,/playlow,,,1,, - ,

this means that we have 6 listeners @ mount point insudio54 , 5 listeners @ play , 10 listeners @ playhigh and 1 listener @ playlow.
now i’ll show you how to use this info for graphs. Let’s go …

b2:~# cd /home/gad/scripts/;mcedit listeners.sh

#!/bin/bash
wget http://play.instudio54.com/status2.xsl -O /tmp/i54.counter 2&>1; cd /tmp;
cat /tmp/i54.counter |grep play \
|sed -e ’s/\/instudio54,,,//’ \
-e ’s/,,//’  \
-e ’s/[-$]//’  \
-e ’s/\/playhigh,,,//’ \
-e ’s/\/playlow,,,//’ \
-e ’s/,\/play,,,//’ \
-e ’s/,,//’ \
-e ’s/,//’ \
-e ’s/- //’ \
-e ’s/ //’ \
-e ’s/,,//’ \
-e ’s/ -//’ \
-e ’s/,//’ \
-e ’s/,, -//’  \
|awk {’print $1″ “$2″ “$3″ “$4′} > /tmp/new_file

one=`cat /tmp/new_file |awk {’print $1′}`
two=`cat /tmp/new_file |awk {’print $2′}`
three=`cat /tmp/new_file |awk {’print $3′}`
four=`cat /tmp/new_file |awk {’print $4′}`

rrdtool update /home/gad/scripts/instudio54.rrd N:$one:$two:$three:$four

b2:/home/gad/scripts# mcedit rrdcreate.sh

rrdtool create /home/gad/scripts/instudio54.rrd \
–start N \
‘DS:online_instudio54:GAUGE:600:U:U’ \
‘DS:online_play:GAUGE:600:U:U’ \
‘DS:online_playhigh:GAUGE:600:U:U’ \
‘DS:online_playlow:GAUGE:600:U:U’ \
‘RRA:LAST:0.5:1:600′ \
‘RRA:MIN:0.5:1:600′ \
‘RRA:MAX:0.5:1:600′ \
‘RRA:AVERAGE:0.5:1:600′ \
‘RRA:LAST:0.5:6:700′ \
‘RRA:MIN:0.5:6:700′ \
‘RRA:MAX:0.5:6:700′ \
‘RRA:AVERAGE:0.5:6:700′ \
‘RRA:LAST:0.5:24:775′ \
‘RRA:MIN:0.5:24:775′ \
‘RRA:MAX:0.5:24:775′ \
‘RRA:AVERAGE:0.5:24:775′ \
‘RRA:LAST:0.5:288:797′ \
‘RRA:MIN:0.5:288:797′ \
‘RRA:MAX:0.5:288:797′ \
‘RRA:AVERAGE:0.5:288:797′

b2:/home/gad/scripts# chmod +x rrdcreate.sh && rrdcreate.sh
b2:/home/gad/scripts# chmod +x listeners.sh
b2:/home/gad/scripts# mcedit graph.sh

#!/bin/bash
cd /var/www/instudio54
rrdtool graph dayly.instudio54.instudio54.png \
-a PNG \
–start=-86400 \
–end=-300 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”Listeners @ instudio54″ \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_instudio54:AVERAGE’ \
‘AREA:in#00CF00:instudio54′ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s\n’ \

rrdtool graph dayly.play.instudio54.png \
-a PNG \
–start=-86400 \
–end=-300 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”Listeners @ Play” \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_play:AVERAGE’ \
‘AREA:in#00CF00:play’ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s\n’ \

rrdtool graph dayly.playhigh.instudio54.png \
-a PNG \
–start=-86400 \
–end=-300 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”Listeners @ PlayHIGH” \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_playhigh:AVERAGE’ \
‘AREA:in#00CF00:playhigh’ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s\n’ \

rrdtool graph dayly.playlow.instudio54.png \
-a PNG \
–start=-86400 \
–end=-300 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”Listeners @ PlayLOW” \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_playlow:AVERAGE’ \
‘AREA:in#00CF00:playlow’ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s\n’

rrdtool graph weekly.instudio54.instudio54.png \
-a PNG \
–start=-604800 \
–end=-1800 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”WEEKLY @ /Instudio54″ \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_instudio54:AVERAGE’ \
‘AREA:in#00CF00:instudio54′ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s\n’ \

rrdtool graph weekly.play.instudio54.png \
-a PNG \
–start=-604800 \
–end=-1800 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”WEEKLY @ /play” \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_play:AVERAGE’ \
‘AREA:in#00CF00:play’ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s’ \

rrdtool graph weekly.playhigh.instudio54.png \
-a PNG \
–start=-604800 \
–end=-1800 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”WEEKLY @ /playhigh” \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_playhigh:AVERAGE’ \
‘AREA:in#00CF00:playhigh’ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s’

rrdtool graph weekly.playlow.instudio54.png \
-a PNG \
–start=-604800 \
–end=-1800 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”WEEKLY @ /playlow” \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_playlow:AVERAGE’ \
‘AREA:in#00CF00:playlow’ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s’

rrdtool graph mounthly.instudio54.instudio54.png \
-a PNG \
–start=-2678400 \
–end=-7200 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”MONTHLY @ /instudio54″ \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_instudio54:AVERAGE’ \
‘AREA:in#00CF00:instudio54′ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s’

rrdtool graph mounthly.play.instudio54.png \
-a PNG \
–start=-2678400 \
–end=-7200 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”MONTHLY @ /play” \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_play:AVERAGE’ \
‘AREA:in#00CF00:play’ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s’ \

rrdtool graph mounthly.playhigh.instudio54.png \
-a PNG \
–start=-2678400 \
–end=-7200 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”MONTHLY @ /playhigh” \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_playhigh:AVERAGE’ \
‘AREA:in#00CF00:playhigh’ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s’

rrdtool graph mounthly.playlow.instudio54.png \
-a PNG \
–start=-2678400 \
–end=-7200 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”MONTHLY @ /playlow” \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_playlow:AVERAGE’ \
‘AREA:in#00CF00:playlow’ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s’

rrdtool graph yearly.instudio54.instudio54.png \
-a PNG \
–start=-33053184 \
–end=-86400 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”YEARLY @ /instudio54″ \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_instudio54:AVERAGE’ \
‘AREA:in#00CF00:instudio54′ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s’

rrdtool graph yearly.play.instudio54.png \
-a PNG \
–start=-33053184 \
–end=-86400 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”YEARLY @ /play” \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_play:AVERAGE’ \
‘AREA:in#00CF00:play’ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s’ \

rrdtool graph yearly.playhigh.instudio54.png \
-a PNG \
–start=-33053184 \
–end=-86400 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”YEARLY @ /playhigh” \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_playhigh:AVERAGE’ \
‘AREA:in#00CF00:playhigh’ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s’

rrdtool graph yearly.playlow.instudio54.png \
-a PNG \
–start=-33053184 \
–end=-86400 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”YEARLY @ /playlow” \
–vertical-label “total” \
‘DEF:in=/home/gad/scripts/instudio54.rrd:online_playlow:AVERAGE’ \
‘AREA:in#00CF00:playlow’ \
‘GPRINT:in:LAST:Current\:%1.0lf %s’ \
‘GPRINT:in:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:in:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:in:MAX:Maximum\:%1.0lf %s’

rrdtool graph dayly.all.instudio54.png \
-a PNG \
–start=-86400 \
–end=-300 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”DAYLY @ ALL” \
–vertical-label “total” \
‘DEF:instudio54=/home/gad/scripts/instudio54.rrd:online_instudio54:AVERAGE’ \
‘DEF:play=/home/gad/scripts/instudio54.rrd:online_play:AVERAGE’ \
‘DEF:playhigh=/home/gad/scripts/instudio54.rrd:online_playhigh:AVERAGE’ \
‘DEF:playlow=/home/gad/scripts/instudio54.rrd:online_playlow:AVERAGE’ \
‘LINE2:instudio54#FFA500:instudio54     ‘ \
‘GPRINT:instudio54:LAST:Current\:%1.0lf %s’ \
‘GPRINT:instudio54:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:instudio54:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:instudio54:MAX:Maximum\:%1.0lf %s \n’ \
‘LINE2:play#FFFF00:play           ‘ \
‘GPRINT:play:LAST:Current\:%1.0lf %s’ \
‘GPRINT:play:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:play:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:play:MAX:Maximum\:%1.0lf %s \n’ \
‘LINE2:playhigh#008000:playhigh       ‘ \
‘GPRINT:playhigh:LAST:Current\:%1.0lf %s’ \
‘GPRINT:playhigh:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:playhigh:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:playhigh:MAX:Maximum\:%1.0lf %s \n’ \
‘LINE2:playlow#FF0000:playlow’ \
‘GPRINT:playlow:LAST:Current\:%1.0lf %s’ \
‘GPRINT:playlow:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:playlow:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:playlow:MAX:Maximum\:%1.0lf %s’

rrdtool graph weekly.all.instudio54.png \
-a PNG \
–start=-604800 \
–end=-1800 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”WEEKLY @ ALL” \
–vertical-label “total” \
‘DEF:instudio54=/home/gad/scripts/instudio54.rrd:online_instudio54:AVERAGE’ \
‘DEF:play=/home/gad/scripts/instudio54.rrd:online_play:AVERAGE’ \
‘DEF:playhigh=/home/gad/scripts/instudio54.rrd:online_playhigh:AVERAGE’ \
‘DEF:playlow=/home/gad/scripts/instudio54.rrd:online_playlow:AVERAGE’ \
‘LINE2:instudio54#FFA500:instudio54     ‘ \
‘GPRINT:instudio54:LAST:Current\:%1.0lf %s’ \
‘GPRINT:instudio54:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:instudio54:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:instudio54:MAX:Maximum\:%1.0lf %s \n’ \
‘LINE2:play#FFFF00:play           ‘ \
‘GPRINT:play:LAST:Current\:%1.0lf %s’ \
‘GPRINT:play:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:play:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:play:MAX:Maximum\:%1.0lf %s \n’ \
‘LINE2:playhigh#008000:playhigh       ‘ \
‘GPRINT:playhigh:LAST:Current\:%1.0lf %s’ \
‘GPRINT:playhigh:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:playhigh:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:playhigh:MAX:Maximum\:%1.0lf %s \n’ \
‘LINE2:playlow#FF0000:playlow’ \
‘GPRINT:playlow:LAST:Current\:%1.0lf %s’ \
‘GPRINT:playlow:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:playlow:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:playlow:MAX:Maximum\:%1.0lf %s’

rrdtool graph mounthly.all.instudio54.png \
-a PNG \
–start=-2678400 \
–end=-7200 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”MONTHLY @ ALL” \
–vertical-label “total” \
‘DEF:instudio54=/home/gad/scripts/instudio54.rrd:online_instudio54:AVERAGE’ \
‘DEF:play=/home/gad/scripts/instudio54.rrd:online_play:AVERAGE’ \
‘DEF:playhigh=/home/gad/scripts/instudio54.rrd:online_playhigh:AVERAGE’ \
‘DEF:playlow=/home/gad/scripts/instudio54.rrd:online_playlow:AVERAGE’ \
‘LINE2:instudio54#FFA500:instudio54     ‘ \
‘GPRINT:instudio54:LAST:Current\:%1.0lf %s’ \
‘GPRINT:instudio54:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:instudio54:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:instudio54:MAX:Maximum\:%1.0lf %s \n’ \
‘LINE2:play#FFFF00:play           ‘ \
‘GPRINT:play:LAST:Current\:%1.0lf %s’ \
‘GPRINT:play:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:play:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:play:MAX:Maximum\:%1.0lf %s \n’ \
‘LINE2:playhigh#008000:playhigh       ‘ \
‘GPRINT:playhigh:LAST:Current\:%1.0lf %s’ \
‘GPRINT:playhigh:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:playhigh:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:playhigh:MAX:Maximum\:%1.0lf %s \n’ \
‘LINE2:playlow#FF0000:playlow’ \
‘GPRINT:playlow:LAST:Current\:%1.0lf %s’ \
‘GPRINT:playlow:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:playlow:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:playlow:MAX:Maximum\:%1.0lf %s’

rrdtool graph yearly.all.instudio54.png \
-a PNG \
–start=-33053184 \
–end=-86400 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”YEARLY @ ALL” \
–vertical-label “total” \
‘DEF:instudio54=/home/gad/scripts/instudio54.rrd:online_instudio54:AVERAGE’ \
‘DEF:play=/home/gad/scripts/instudio54.rrd:online_play:AVERAGE’ \
‘DEF:playhigh=/home/gad/scripts/instudio54.rrd:online_playhigh:AVERAGE’ \
‘DEF:playlow=/home/gad/scripts/instudio54.rrd:online_playlow:AVERAGE’ \
‘LINE2:instudio54#FFA500:instudio54     ‘ \
‘GPRINT:instudio54:LAST:Current\:%1.0lf %s’ \
‘GPRINT:instudio54:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:instudio54:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:instudio54:MAX:Maximum\:%1.0lf %s \n’ \
‘LINE2:play#FFFF00:play           ‘ \
‘GPRINT:play:LAST:Current\:%1.0lf %s’ \
‘GPRINT:play:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:play:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:play:MAX:Maximum\:%1.0lf %s \n’ \
‘LINE2:playhigh#008000:playhigh       ‘ \
‘GPRINT:playhigh:LAST:Current\:%1.0lf %s’ \
‘GPRINT:playhigh:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:playhigh:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:playhigh:MAX:Maximum\:%1.0lf %s \n’ \
‘LINE2:playlow#FF0000:playlow’ \
‘GPRINT:playlow:LAST:Current\:%1.0lf %s’ \
‘GPRINT:playlow:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:playlow:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:playlow:MAX:Maximum\:%1.0lf %s’

rrdtool graph dayly.sum.instudio54.png \
-a PNG \
–start=-86400 \
–end=-300 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”DAILY @ SUM” \
–vertical-label “total” \
‘DEF:instudio54=/home/gad/scripts/instudio54.rrd:online_instudio54:AVERAGE’ \
‘DEF:play=/home/gad/scripts/instudio54.rrd:online_play:AVERAGE’ \
‘DEF:playhigh=/home/gad/scripts/instudio54.rrd:online_playhigh:AVERAGE’ \
‘DEF:playlow=/home/gad/scripts/instudio54.rrd:online_playlow:AVERAGE’ \
‘CDEF:inst=instudio54,play,+,playhigh,+,playlow,+’ \
‘LINE2:inst#FFA500:instudio54 SUM ALL’ \
‘GPRINT:inst:LAST:Current\:%1.0lf %s’ \
‘GPRINT:inst:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:inst:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:inst:MAX:Maximum\:%1.0lf %s’

rrdtool graph weekly.sum.instudio54.png \
-a PNG \
–start=-604800 \
–end=-1800 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”WEEKLY @ SUM” \
–vertical-label “total” \
‘DEF:instudio54=/home/gad/scripts/instudio54.rrd:online_instudio54:AVERAGE’ \
‘DEF:play=/home/gad/scripts/instudio54.rrd:online_play:AVERAGE’ \
‘DEF:playhigh=/home/gad/scripts/instudio54.rrd:online_playhigh:AVERAGE’ \
‘DEF:playlow=/home/gad/scripts/instudio54.rrd:online_playlow:AVERAGE’ \
‘CDEF:inst=instudio54,play,+,playhigh,+,playlow,+’ \
‘LINE2:inst#FFA500:instudio54 SUM ALL’ \
‘GPRINT:inst:LAST:Current\:%1.0lf %s’ \
‘GPRINT:inst:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:inst:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:inst:MAX:Maximum\:%1.0lf %s’

rrdtool graph mounthly.sum.instudio54.png \
-a PNG \
–start=-2678400 \
–end=-7200 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”MONTHLY @ SUM” \
–vertical-label “total” \
‘DEF:instudio54=/home/gad/scripts/instudio54.rrd:online_instudio54:AVERAGE’ \
‘DEF:play=/home/gad/scripts/instudio54.rrd:online_play:AVERAGE’ \
‘DEF:playhigh=/home/gad/scripts/instudio54.rrd:online_playhigh:AVERAGE’ \
‘DEF:playlow=/home/gad/scripts/instudio54.rrd:online_playlow:AVERAGE’ \
‘CDEF:inst=instudio54,play,+,playhigh,+,playlow,+’ \
‘LINE2:inst#FFA500:instudio54 SUM ALL’ \
‘GPRINT:inst:LAST:Current\:%1.0lf %s’ \
‘GPRINT:inst:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:inst:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:inst:MAX:Maximum\:%1.0lf %s’

rrdtool graph yearly.sum.instudio54.png \
-a PNG \
–start=-33053184 \
–end=-86400 \
–base=1000 \
–rigid \
–alt-autoscale-max \
–lower-limit=0 \
–slope-mode \
–width=600 \
–title=”YEARLY @ SUM” \
–vertical-label “total” \
‘DEF:instudio54=/home/gad/scripts/instudio54.rrd:online_instudio54:AVERAGE’ \
‘DEF:play=/home/gad/scripts/instudio54.rrd:online_play:AVERAGE’ \
‘DEF:playhigh=/home/gad/scripts/instudio54.rrd:online_playhigh:AVERAGE’ \
‘DEF:playlow=/home/gad/scripts/instudio54.rrd:online_playlow:AVERAGE’ \
‘CDEF:inst=instudio54,play,+,playhigh,+,playlow,+’ \
‘LINE2:inst#FFA500:instudio54 SUM ALL’ \
‘GPRINT:inst:LAST:Current\:%1.0lf %s’ \
‘GPRINT:inst:AVERAGE:Average\:%1.0lf %s’ \
‘GPRINT:inst:MIN:Minimum\:%1.0lf %s’ \
‘GPRINT:inst:MAX:Maximum\:%1.0lf %s’

b2:/home/gad/scripts# mkdir /var/www/instudio54;cd /var/www/instudio54

b2:/var/www/instudio54# mcedit index.php

<?

echo “mountpoint ?<br>”;
echo “click at graph to see details<br>”;
echo “<a href=\”details.php?show=instudio54\”><img border=0 src=\”dayly.instudio54.instudio54.png\”></a><br>”;
echo “<a href=\”details.php?show=play\”><img border=0 src=\”dayly.play.instudio54.png\”></a><br>”;
echo “<a href=\”details.php?show=playhigh\”><img border=0 src=\”dayly.playhigh.instudio54.png\”></a><br>”;
echo “<a href=\”details.php?show=playlow\”><img border=0 src=\”dayly.playlow.instudio54.png\”></a><br><br>”;

echo “all?<br>”;
echo “<a href=\”details.php?show=all\”><img border=0 src=\”dayly.all.instudio54.png\”></a><br>”;
echo “<a href=\”details.php?show=sum\”><img border=0 src=\”dayly.sum.instudio54.png\”></a><br>”;

?>

b2:/var/www/instudio54# mcedit details.php

<?
$show = $_GET[’show’];

if($show == “instudio54″)
{
$mount = “instudio54″;
}

elseif($show == “play”)
{
$mount = “play”;
}

elseif($show == “playhigh”)
{
$mount = “playhigh”;
}

elseif($show == “playlow”)
{
$mount = “playlow”;
}

elseif($show == “all”)
{
$mount = “all”;
}

elseif($show == “sum”)
{
$mount = “sum”;
}

echo “<h2>$mount</h2>”;
echo “<img src=\”dayly.$mount.instudio54.png\”><br>”;
echo “<img src=\”weekly.$mount.instudio54.png\”><br>”;
echo “<img src=\”mounthly.$mount.instudio54.png\”><br>”;
echo “<img src=\”yearly.$mount.instudio54.png\”><br>”;
echo “<br><a href=\”index.php\”>BACK</a>”;

?>

b2:/var/www/instudio54# crontab -e
*/5 * * * * /home/gad/scripts/listeners.sh 2&>1 && /home/gad/scripts/graph.sh 2&>1

AND THATS ALL!

Categories: :: KnowHow by Sto. :: line-by-line on commandline
30Sep

Howto create asterisk telephony architecture with calls recording and phone line internal redirects

No comments

Hi, this is a reallife example howto made for two incomming phone lines.

line-by-line on commandline you know :).

Here is what I have. :

– one Linuxbox called aster aster:~# uname -a Linux aster 2.6.18-6-686 #1 SMP Sun Feb 10 22:11:31 UTC 2008 i686 GNU/Linux

– one TDM card with two modules for two phone lines.

Found a Wildcard TDM: Wildcard TDM400P REV I (2 modules)

Module 0: Installed — AUTO FXO (FCC mode)

Module 1: Installed — AUTO FXO (FCC mode) of course we need also some SIP clients, I w’ll use software SIP clients.

————————- start here ————–

step1: installing

apt-get install asterisk :)

step2: configure for incomming phone lines

aster:~# vi /etc/zaptel.conf

fxsks=1-2
loadzone=us
defaultzone=us

aster:~# vi /etc/asterisk/zapata.conf
[trunkgroups]
[channels]
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=no
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=yes
immediate=yes
context=incoming
signalling=fxs_ks
channel => 1
signalling=fxs_ks
context=incoming
channel => 2

step3: configure SIP : example is with 3 sip lines and one incomming phone line.
aster:~# vi /etc/asterisk/sip.conf
[general]
context=internal
srvlookup=yes ; to allow for calling other sip clients over the Internet

[sto]
type=friend
username=sto
secret=*****
host=dynamic
context=office
nat=no

[support1]
type=friend
username=support1
secret=*******
host=dynamic
context=office
nat=yes

[support2]
type=friend
secret=******
host=dynamic
context=office
nat=yes

step4: configure extensions: example with calls recording on two SIP lines, and one incomming phone line redirect
aster:~# vi /etc/asterisk/extensions.conf

[globals]
[general]
autofallthrough=yes
[internal]
include => office

[incoming]
exten => s,1,Set(0800line1=0800-line1-${TIMESTAMP})
exten => s,n,Answer()
exten => s,n,Monitor(wav|${0800line1}|m)
exten => s,n,Dial(’SIP/support1′,20)
exten => s,n,Hangup
;exten => s,n,GoTo(office,301,1)
exten => i,1,Playback(pbx-invalid)
exten => i,n,GoTo(incoming,s,1)
exten => t,1,Playback(vm-goodbye)
exten => t,n,Hangup()

[office]
;exten => 301,1,Set(0800line1=0800-line1-${TIMESTAMP})
;exten => 301,n,Dial(’SIP/support1′,20)
;exten => 301,n,Answer(0)
;exten => 301,n,Monitor(wav|${0800line1}|m)
;exten => 301,n,Hangup
exten => 302,1,Set(0800line2=0800-line2-${TIMESTAMP})
exten => 302,n,Answer()
exten => 302,n,Monitor(wav|${0800line2}|m)
exten => 302,n,Dial(’SIP/support2′,20)
exten => 302,n,Hangup

aster:~# /etc/init.d/zaptel start
Zaptel telephony kernel driver: zaptel. ( u must load pbx modules before )
aster:~# /etc/init.d/asterisk start
Starting Asterisk PBX: asterisk.

Categories: :: KnowHow by Sto. :: line-by-line on commandline
05Aug

Howto listen and watch online video streaming on MacOS

No comments

first, Excuse me for my dirty english freestyle style.

Now, this is a reallife example made with Mac OSX 10.5 , vlc software and instudio54.com real-time audio and video party streaming.

step1. download vlc player..www.videolan.org ( off course you can install it with your favourite package manager ), open network http address: http://play.instudio54.com:8080

step2. follow the screenshoted steps..

Screenshot1

Screenshot2

Screenshot3

Screenshot4

Read the rest of this entry »

Categories: :: KnowHow by Sto. :: line-by-line on commandline
05Aug

Howto listen and watch online video streaming on Linux

No comments

first, Excuse me for my dirty english freestyle style.

Now, this is a reallife example made with Debian Linux, vlc software and instudio54.com real-time audio and video party streaming.

step1. download vlc player..www.videolan.org ( in package supported distros just apt-get install vlc, yum install vlc etc. ), open network http address: http://play.instudio54.com:8080

step2. follow the screenshoted steps..

Screenshot1 Screenshot2 Screenshot3 Screenshot4

Categories: :: KnowHow by Sto. :: line-by-line on commandline
25Jun

Howto listen online radio stream on your mobile phone

No comments

first, Excuse me for my dirty english style.

Now, this is reallife example with Nokia 9300i mobile phone and online radio http://instudio54.com.

You need three shits:

shit1: the player software: WebPlayerMidle, shit2: restreaming url; shit3: online audiostream

step1: download and install WebPlayerMidlet

step2: Start WebPlayerMidlet, setup settings on WebPlayerMidlet, (u can download this two files -> http//bg-webs.info/mobile/ and upload them somewhere with php env. OR you can use mine) , so there, in settings, on restreaming URL enter http://bg-webs.info/mobile/mobile.restreamer.mp3

step3: enter playlist, enter Add, enter on radio name: instudio54, enter on stream url: http://play.instudio54.com/mobile.m3u, enter.

 

that’s all, thanks for reading my line-by-line on commandline howto.

Categories: :: KnowHow by Sto. :: line-by-line on commandline
25Jun

dr.loradoicheva.com - Др. Лора Дойчева

No comments

Ракът на гърдата се лекува!!! др. Лора Дойчева

Categories: bg-webs.com PORTFOLIO - Hosting Clients
19Jun

G-s-m.bg - best online gsm prices

No comments

Продажба, сервиз за мобилна техника, мобилни апарати, аксесоари, GSM апарати, PDA устройства и т.н.

Categories: bg-webs.com PORTFOLIO - Hosting Clients
18Jun

Monitor Network Services with Nagios - Part 1

1 comment so far

1. Introduction

Nagios is a popular service and host monitor that can send notification messages when network servers go offline by monitoring protocols HTTP, FTP, SMTP, SNMP, PING, arbitrary TCP and UDP ports numbers, and others. In Part 1, we’ll cover how to setup Nagios and monitor common network services. In Part 2, we’ll cover defining service checks for custom services, demonstrate how to monitor Cisco interfaces via the Simple Network Management Protocol (SNMP), and show how to enable out-of-band notifications via an alpha-numeric pager. Nagios can also perform internal host checks for CPU, disk usage, etc., using agents on remote hosts but this is beyond the scope of this HOWTO.

1.1. Document conventions

Here are the conventions used to distinguish Unix terminal window input and output.

%% Commands to be typed into a terminal window.
Command output to a terminal window.
File text.

2. Install Nagios Prerequisites

This section covers installation of software you will need to use Nagios, including supporting libraries, Apache web server modifications, and enabling the Postfix Simple Mail Transport Protocol (SMTP) server.

2.1. Install MacPorts

You may install the MacPorts package manager with these instructions, which include instructions for installing XWindows (X11). Follow the instructions carefully and perform all non-optional steps.

2.2. Apache Setup for Nagios

For simple Apache user/password authentication for the Nagios web interface, the easiest thing is to use Aple’s built-in Apache web server. However, if you wish to enable ldap authentication for the Nagios web interface, then MacPorts’ Apache 2 may be installed with the OpenLDAP variant.

  1. Optional - if you wish to keep Apple’s Apache and use local username and password authentication, skip this step and proceed to step 2. To install Apache 2 with OpenLDAP support, first remove the MacPort apr-util port and reinstall it with openldap support.Force remove apr-util if it was previously installed. Ignore any uninstall error messages that you’ll receive if it is not installed. 
    %% sudo port -f uninstall apr-util %% sudo port clean --all apr-util

    Install apr-util with openldap support.

    %% sudo port install apr-util +openldap

    Now that apr-util has openldap support, you may install the Apache 2 port with openldap support.

    %% sudo port install apache2 +openldap

    Now you must turn off Apple’s built-in Apache 1.3 by turning off Personal Web Sharing in System Preferences, then rename Apache 2’s sample httpd.conf file for use.

    %% cd /opt/local/apache2/conf %% sudo cp httpd.conf.sample httpd.conf

    Now start Apache 2 and proceed with the rest of the Apache setup steps below.

    %% sudo launchctl load -w /Library/LaunchDaemons/org.macports.apache2.plist
  2. Edit your httpd/httpd.conf. Apple’s Apache keeps it in /etc/httpd/httpd.conf; MacPorts’ Apache 2 keeps it in /opt/local/apache2/conf. Locate the default Scriptalias statement —it begins with: 
    ScriptAlias /cgi-bin/ ...

    Now insert this block of text before the default ScriptAlias statement.

    # # Nagios stuff  ScriptAlias /nagios/cgi-bin/ "/opt/local/sbin/nagios/" <Directory "/opt/local/sbin/nagios">
AllowOverride None Options ExecCGI Order allow,deny Allow from all AuthName "Nagios Access" AuthType Basic AuthUserFile /opt/local/etc/nagios/htpasswd.users (for user/password auth) Require valid-user </Directory>  Alias /nagios "/opt/local/share/nagios"
<Directory "/opt/local/share/nagios"> Options None AllowOverride AuthConfig Order allow,deny Allow from all </Directory>  # End Nagios stuff #

    If you chose to install Apache 2 with OpenLDAP support above, your Apache directive will be similar to the example below to authorize access to the Nagios web page for the users userx, usery, and userz that successfully authenticate to ldap. The AuthLDAPUrl directive search parameters are in the form ldap://host:port/basedn?attribute?scope?filter. You may want to consult the Apache docs for ldap authentication or ask your ldap administrator for the proper search parameters.

    ScriptAlias /nagios/cgi-bin/ "/opt/local/sbin/nagios/" <Directory "/opt/local/sbin/nagios"> AllowOverride None Options ExecCGI Order allow,deny allow from all AuthName "Nagios Access" AuthType Basic AuthBasicProvider ldap AuthzLDAPAuthoritative on
AuthLDAPUrl ldap://host.mycompany.com:636/cn=users,dc=ldap,dc=mycompany,dc=com?uid Require ldap-user userx usery userz </Directory>

    Note

    If you wish to authorize access for all valid users that sucessfully authenticate to the LDAP directory, you may use the directive Require valid-user.

  3. It is best if you put your Mac’s DNS name in the Apache directive ServerName. Make sure to remove the leading ‘#’ sign to uncomment it. 
    ServerName nagios.mycompany.com
  4. Set the Apache user and group to the Nagios user. 
    User nagios Group nagios
  5. Now start or restart Apple’s built-in Apache web server by using the Personal Web Sharing preference pane in your Mac’s System Preferences. If you installed Apache 2 in the optional step 1 above, stop and start Apache 2 with this command. 
    %% sudo /opt/local/apache2/bin/apachectl stop %% sudo /opt/local/apache2/bin/apachectl start

2.3. Install Postfix

An SMTP server allows Nagios to send alerts via email (to use a modem for out-of-band notifications, see Part 2.) Use MacPorts to install the Postfix SMTP server on your Nagios OS X workstation as shown. You may also use a commercial SMTP server that supports Sendmail emulation, such as: Communigate Pro, Post.Office, or SurgeMail (see vendor documentation for installation instructions.)

%% sudo port install postfix

Use the sample Postfix configuration files.

%% cd /opt/local/etc/postfix %% sudo cp master.cf.sample master.cf %% sudo cp main.cf.sample main.cf %% sudo cp aliases.sample aliases

Run these commands to activate the Postfix aliases file.

%% sudo postalias /opt/local/etc/postfix/aliases %% sudo newaliases

Then redirect OS X’s sendmail executable to the one from MacPorts.

%% sudo mv /usr/sbin/sendmail /usr/sbin/sendmail.old %% sudo ln -s /opt/local/sbin/sendmail /usr/sbin/sendmail

Start Postfix and set it to run at system boot.

%% sudo launchctl load -w /Library/LaunchDaemons/org.macports.postfix.plist

Finally, test the SMTP server by sending a sample message.

%% mail joe@exp.com

Enter text for the message body and then press Control-D on a blank line to send the message. This test must succeed for Nagios email notifications to be delivered. Make sure the SMTP server for the receiving domain will allow mail from your Nagios workstation. If the email does not arrive, check the mail log to see why as shown.

%% tail /var/log/mail.log

3. Install Nagios

Use MacPorts to install Nagios and setup the sample Nagios configuration files as a starting point for your Nagios configuration.

3.1. Install Nagios

Use MacPorts to install Nagios, Nagios plug-ins, and all required dependencies with this command.

%% sudo port install nagios

These are the MacPorts’ Nagios default directory locations.

/opt/local/bin            – Nagios executable
/opt/local/sbin/nagios    – CGI scripts for the Web interface
/opt/local/share/nagios   – HTML files and documentation
/opt/local/var/nagios     – Nagios information storage
/opt/local/libexec/nagios – Nagios plug-ins
/opt/local/etc/nagios     – config file location

3.2. Examine Nagios plug-ins

Change to the Nagios plug-ins directory and examine the available plug-ins.

%% cd /opt/local/libexec/nagios

You may get information on how to use Nagios plug-ins by using the “-h” switch to get the command’s help text.

%% ./check_http -h

Here is the partial output from the check_http plug-in.

Options: -h, --help Print detailed help screen -V, --version Print version information -H, --hostname=ADDRESS Host name argument for servers using host headers (virtual host) Append a port to include it in the header
(eg: example.com:5000) -I, --IP-address=ADDRESS IP address or name (use numeric address if possible to bypass DNS lookup). -p, --port=INTEGER Port number (default: 80) -S,
--ssl Connect via SSL -C, --certificate=INTEGER Minimum number of days a certificate has to be valid. (when this option is used the url is not checked.)  -e, --expect=STRING String to expect in first (status) line of server response
(default: HTTP/1. If specified skips all other status line logic (ex: 3xx, 4xx, 5xx processing) -s, --string=STRING String to expect in the content -u, --url=PATH URL to GET or POST (default: /) -a, --authorization=AUTH_PAIR Username:password on sites with basic authentication

3.3. Setup Nagios sample files

First, make a backup copy of the sample files.

%% cd /opt/local/etc/nagios %% sudo mkdir sample %% sudo cp *.cfg-sample sample

Open a superuser shell, execute a command to rename all the sample files so they can be used, then exit the superuser shell.

%% sudo -s ## for i in *cfg-sample; do mv $i `echo $i | sed -e s/cfg-sample/cfg/`; done; ## exit %%

Verify the list of renamed sample files.

cgi.cfg
commands.cfg
localhost.cfg
nagios.cfg
resource.cfg

In the next section, we’ll use the default object configuration file commands.cfg to store our Nagios objects.

4. Configure Nagios

Hosts, services, and contacts in Nagios are called objects. Nagios uses a template-based object configuration, which means that objects may inherit properties from other objects. Therefore if you set up your object definitions with some forethought, adding service checks for a host can be accomplished merely by adding the host to the right group(s).

4.1. Object definition overview

We’re going to use the commands.cfg sample configuration file, which contains the six object definition sections shown in the diagram below. Object definitions are how you define hosts and services to be monitored, contacts and contactgroups for notification, and commands for actions to be taken. You should get familiar with a logical overview of Nagios object definitions before proceeding.

4.2. Timeperiods

Timeperiods are defined so they can be used within contacts and services object definitions. In contacts they are used to specify “on call” periods and in services for specifying periods over which a service is to be checked.

# '24x7' timeperiod definition define timeperiod{ timeperiod_name 24x7 alias           24 Hours A Day, 7 Days A Week sunday          00:00-24:00 monday          00:00-24:00 tuesday         00:00-24:00 wednesday       00:00-24:00 thursday        00:00-24:00
friday          00:00-24:00 saturday        00:00-24:00 }
# '24x7except3-4am' timeperiod definition define timeperiod
{ timeperiod_name 24x7except3-4am alias           24 Hours A Day, except for 3-4am sunday          00:00-3:00,4:00-24:00 monday          00:00-3:00,4:00-24:00 tuesday         00:00-3:00,4:00-24:00 wednesday       00:00-3:00,4:00-24:00 thursday        00:00-3:00,4:00-24:00
friday          00:00-3:00,4:00-24:00 saturday        00:00-3:00,4:00-24:00 }
# 'workhours' timeperiod definition define timeperiod{ timeperiod_name workhours alias           "Normal" Working Hours monday          09:00-17:00 tuesday         09:00-17:00 wednesday       09:00-17:00 thursday        09:00-17:00 friday          09:00-17:00 }

4.3. Contacts

Make a contact definition entry for each contact person following the example given. A timeperiod in a contact definition functions as an “on call” period for the contact. See the tables below for detailed service and host notification options.

# 'admin' contact definition define contact{ contact_name                    admin alias                           Nagios Admin service_notification_period     24x7 host_notification_period
24x7 service_notification_options    w,u,c,r host_notification_options       n service_notification_commands
notify-by-email host_notification_commands      host-notify-by-email email                           admin@mycompany.com pager                           mypager@mycompany.com }

The pager directive may reference an alphanumeric pager -see Part 2 for details.

Table 1. Service notification options

Notify on transition Option
WARNING service states w
UNKNOWN service states u
CRITICAL service states c
Service RECOVERY states r
Send NO service notifications n


Table 2. Host notification options

Notify on transition Option
DOWN host states d
UNREACHABLE host states u
HOST RECOVERIES (return to UP state) r
Send NO host notifications n


4.4. Contactgroups

Make contact group definitions and put your contacts into one or more groups for use in the hostgroup and services object definitions.

# 'novell-admins-dept22' contact group definition define contactgroup{ contactgroup_name       novell-admins-dept22 alias                   Novell Administrators in Dept 22 members                 admin }  # 'novell-admins-dept31' contact group definition define contactgroup{
contactgroup_name       novell-admins-dept31 alias                   Novell Administrators in Dept 31 members                 admin,jdoe }

4.5. Hosts

Do not modify the top host section entry “generic-host”; it is a template, not a host definition. Enter each of your hosts following the example of the sample definitions that follow the template. You my disable host checks (checks_enabled 0) if you want to monitor services only, however the notification directives are required nonetheless.

# Generic host definition template define host{ name                            generic-host    ; Name .. notifications_enabled           1       ; event_handler_enabled           1       ; flap_detection_enabled          1       ;
process_perf_data               1       ; retain_status_information       1       ; retain_nonstatus_information    1       ;
register                   0 ; DON’T REGISTER TEMPLATES! }  # 'novell-1' host definition define host{ use                     generic-host  ; Name of template  host_name               novell-1 alias                   Novell Server
#1 address                 192.168.1.2 check_command           check-host-alive max_check_attempts      10 checks_enabled          0 notification_interval   120 notification_period     24x7 notification_options    d,u,r }

4.6. Hostgroups

Make groups for your servers by function. If you’ve disabled host checks, the contact group you use isn’t important.

# 'novell-servers-dept22' host group definition define hostgroup{ hostgroup_name  novell-servers-dept22 alias           Novell Servers-Dept22 contact_groups  novell-admins members         novellsvr1,novellsvr2 }  # 'http-servers-dept22' host group definition define hostgroup{
hostgroup_name  http-servers-dept22 alias           HTTP Servers-Dept22 contact_groups  http-admins members         webserver1,webserver2 }  # 'http-servers-dept31' host group definition define hostgroup{ hostgroup_name  http-servers-dept31 alias
HTTP Servers Dept 31 contact_groups  dept31-admins members         webserver3,webserver4 }

4.7. Services

Do not modify the top service section entry “generic-service” because it is a template, not a service definition. Enter each of your services following the example of the sample definitions that follow the template. See the tables below for detailed service notification options and directives. You’ll notice I’ve used hostgroup_name instead of the host_name directive that you’ll see in the sample services section. Using groups whenever possible simplifies your object configuration files and makes modifications simpler. This and other object file template tricks are described here.

# Generic service definition template define service{ name                            generic-service ; active_checks_enabled           1       ; passive_checks_enabled          1       ; parallelize_check               1       ; obsess_over_service             1       ;
check_freshness                 0       ; notifications_enabled           1       ;
event_handler_enabled           1       ; flap_detection_enabled          1       ; process_perf_data               1       ; retain_status_information       1       ; retain_nonstatus_information    1       ;
register                0       ; DONT REGISTER TEMPLATE! } # Service definition define service{ use                             generic-service         ; Name of service template  hostgroup_name                  http-servers-dept22 service_description
HTTP is_volatile                     0 check_period                    24x7 max_check_attempts
3 normal_check_interval           3 retry_check_interval            1 contact_groups                  admins,http-admins-dept22 notification_interval           30 notification_period             24x7 notification_options            w,u,c,r check_command                   check_http }
# Service definition define service{ use                             generic-service         ;
Name of service template  hostgroup_name                  http-servers-dept31 service_description             HTTP is_volatile                     0 check_period                    24x7 max_check_attempts
3 normal_check_interval           3 retry_check_interval            1 contact_groups                  admins,http-admins-dept31 notification_interval           30 notification_period             24x7 notification_options            w,u,c,r check_command                   check_http }
# Service definition define service{ use                             generic-service         ; Name of service template  hostgroup_name                  foo-servers service_description             FTP is_volatile                     0 check_period
24x7 max_check_attempts              3 normal_check_interval
3 retry_check_interval            1 contact_groups                  foo-admins notification_interval           15 notification_period             24x7 notification_options            w,u,c,r check_command                   check_tcp!510! }

Table 3. Service notification options

<;td align=”center”>c

Notify on transition Option
WARNING service states w
UNKNOWN service states u
CRITICAL service states
Service RECOVERY states r
Send NO service notifications n


Table 4. Other important service directives

Directive Description
max_check_attempts Number of times to retry a service check when a non-OK state is returned.
normal_check_interval Minutes to wait (after OK or max check attempts reached) before next “regular” check.
retry_check_interval Minutes to wait before re-checking a non-OK service.
notification_interval Minutes to wait before notifying a contact that a service is *still* in a non-OK state. Must be >= normal check interval.


5. Start Nagios

After setting all your Nagios objects, you should test your new configuration before starting Nagios. You may test configurations with the -v switch as shown.

%% sudo nagios –v /opt/local/etc/nagios/nagios.cfg

Correct any errors reported in your configuration, and re-run this command until the report displays no errors as shown.

Total Warnings: 0 Total Errors:   0  Things look okay - No serious problems were detected during the pre-flight check.

Once your configuration is verified, you may start Nagios and set it to start at system boot with this command.

%% sudo launchctl load –w /Library/LaunchDaemons/org.macports.nagios.plist

Or if you do not wish to run Nagios at system boot, you may start it manually with this command.

%% sudo /opt/local/var/nagios/nagios.init start

You may use the Unix ps command to make sure the Nagios process is running.

%% ps -ax |grep nagios

If the Nagios process is running, look for a line that displays the Nagios binary as shown.

18255  ??  Ss     0:00.25 /opt/local/bin/nagios -d /opt/local/etc/nagios/nagios.cfg

6. Setup Nagios Web Access

Access to the Nagios web interface should be secured, so that only those given a username and password may access it.

6.1. Create local Apache users

If you chose the option to install Apache 2 with ldap authentication support, you may skip creating local users and proceed to the next section. Otherwise, create a Nagios “superuser” (by default “nagiosadmin”) to login to the Nagios web interface and view all Nagios pages. Create other users as desired, omitting the “-c” option after the first user is created (“-c” creates the password file.)

%% sudo htpasswd -c /opt/local/etc/nagios/htpasswd.users nagiosadmin

Enter a password for the user when prompted.

6.2. Grant Nagios web rights

Before you login to the Nagios web interface, enable administrator rights to all hosts and services for your Nagios “superuser” by editing the following settings in Nagios configuration file /opt/local/etc/nagios/cgi.cfg. If you chose to use ldap authentication, select one or more ldap users to be the superuser.

authorized_for_system_information=        nagiosadmin authorized_for_configuration_information= nagiosadmin authorized_for_system_commands=
nagiosadmin authorized_for_all_services=              nagiosadmin authorized_for_all_hosts=
nagiosadmin authorized_for_all_service_commands=      nagiosadmin authorized_for_all_host_commands=         nagiosadmin

6.3. View the Nagios web page

You may now go to the Nagios web page at http://localhost/nagios/ and login with your Nagios “superuser” account. An example Nagios web interface screenshot is shown below.

6.4. Limit user rights

Now that you have a Nagios “superuser” that has rights to view all host and services, you may also want to have users with restricted viewing rights for others persons. To do so for local user/password authentication, create Apache users whose names match Nagios contact names. To do so with ldap authentication, just choose your Nagios contact names to match your ldap usernames. When Nagios web interface users match Nagios contact names, the Nagios web interface user may only view those hosts and services for which his user is listed as a contact.

7. Support Information

Part 2 covers how to define check commands, monitor the health of the Nagios process, and enable out-of-band network notifications via modem to an alpha-numeric pager. But you may also consult the FAQs, documentation, and Nagios mailing lists.

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