edit '''/etc/default/snmpd''' : remove ''-u snmp'' and repleace replace ''127.0.0.1'' witch with your ip(ie : 207.46.250.119), Full'''/etc/default/snmpd''' example:

For Debian 4.x:<pre>export MIBDIRS=/usr/share/snmp/mibsSNMPDRUN=yesSNMPDOPTS='-Lsd -Lf /dev/null -I -smux -p /var/run/snmpd.pid'TRAPDRUN=noTRAPDOPTS='-Lsd -p /var/run/snmptrapd.pid'</pre> Create user(my_username) and add new mib. Password need a min. of 8 charactes. Username only characters:

echo rouser my_username priv >> /etc/snmp/snmpd.conf

snmpwalk -v 3 -u my_usrname my_username -l authPriv -a MD5 -A my_password -x DES -X my_password 207.46.250.119$(hostname -i)

=== example nagios configuration ===add to configuration:<pre>define command {command_name check_snmp_openvz_on_port# command_line /usr/local/bin/check_snmp_openvz.sh $HOSTADDRESS$ PORT USER PASSWORDcommand_line /usr/local/bin/check_snmp_openvz.sh $HOSTADDRESS$ $ARG1$ $ARG2$ $ARG3$}</pre> <pre>define host { host_name openvz-server alias Serwer Openvz address 207.46.250.119 use generic-host contact_groups admins }</pre> <pre>define service{ use generic-service host_name openvz-server service_description Virtual Machines Limits check_command check_snmp_openvz_on_port!161!my_username!my_password max_check_attempts 1 } </pre> === nagios plugin ===It is shell script:<source lang="bash"># cat /usr/local/bin/check_snmp_openvz.sh#!/bin/bashHOST=$1PORT=$2USER=$3PASS=$4export FILE=/tmp/$HOST.beancountersRET=0 DATA_TMP=`snmpwalk -v 3 -u $USER -l authPriv -a MD5 -A $PASS -x DES -X $PASS $HOST:$PORT .1.3.6.1.4.1.2021.51.4`if [ "$?" != "0" ]; then echo "Unknown snmp error" exit 1fi DATA=`echo "$DATA_TMP"| perl -ne '/"(.*)"/ ; print "$1\n" ;'` if [ -f $FILE ]; thenecho "$DATA" | perl -n -e'use Data::Dumper;my $file=$ENV{"FILE"};my $ret=0 ;my $vid ;my $resource ;my $held ;my $maxheld ;my $barrier ;my $limit ;my $failcnt ;my %beancounters ;my %beancounters_old ;while(<STDIN>){ my %vmachine; if ( /\D*(\d+):.*/ ){ $vid=$1; $beancounters{$vid}=\%vmachine ; } if ( /^[\W\d]+([a-z]+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+).*/ ) { $resource=$1 ; $held=$2 ; $maxheld=$3 ; $barrier=$4 ; $limit=$5 ; $failcnt=$6 ; ${beancounters{$vid}}{$resource}=[$held , $maxheld , $barrier , $limit ,$failcnt ]; if ( ($held > $barrier) && ($barrier != 0) ) { print "WARNING: Limits on $vid: $resource held->$held , barrier->$barrier ( limit->$limit ) " ; $ret=1; } }} # read and parse old dataopen(MYINPUTFILE, "<$file");while(<MYINPUTFILE>){ my %vmachine; if ( /\D*(\d+):.*/ ){ $vid=$1; $beancounters_old{$vid}=\%vmachine ; } if ( /^[\W\d]+([a-z]+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+).*/ ) { $resource=$1 ; $held=$2 ; $maxheld=$3 ; $barrier=$4 ; $limit=$5 ; $failcnt=$6 ; ${beancounters_old{$vid}}{$resource}=[$held , $maxheld , $barrier , $limit ,$failcnt ]; }} foreach my $vmachine_id (keys %beancounters) { foreach my $resource (keys %{$beancounters{$vmachine_id}} ) { if ( defined($beancounters{$vmachine_id}{$resource}[4]) && defined($beancounters_old{$vmachine_id}{$resource}[4]) ){ my $failcnt=$beancounters{$vmachine_id}{$resource}[4]; my $failcnt_old=$beancounters_old{$vmachine_id}{$resource}[4]; my $held=$beancounters{$vmachine_id}{$resource}[0]; my $maxheld=$beancounters{$vmachine_id}{$resource}[1]; my $barrier=$beancounters{$vmachine_id}{$resource}[2]; my $limit=$beancounters{$vmachine_id}{$resource}[3]; if ( $failcnt_old < $failcnt ){ print "CRITICAL: Incrased failcnt $vmachine_id: $resource from $failcnt_old to $failcnt (held->$held , maxheld->$maxheld , barrier->$barrier , limit->$limit ) " ; $ret=2; } } } } # if ($ret == 0 ) { print "Ok. \n" ; }# print Dumper(%beancounters_old) ;# print "\n";exit($ret);' RET1=$?fi echo "$DATA" > $FILE############################################################################################## quota check##################################################################################### DATA=`snmpwalk -v 3 -u $USER -l authPriv -a MD5 -A $PASS -x DES -X $PASS $HOST:$PORT .1.3.6.1.4.1.2021.52.4 \| perl -ne '/"(.*)"/ ; print "$1\n" ;'` if [ "$?" != "0" ]; then echo "Unknown snmp error" exit 1fi  echo "$DATA" | perl -n -e'my $vid ;my $ret=0 ;while(<STDIN>){ my %vid; if ( /\D*(\d+):.*/ ){ $vid=$1; } if ( /\s*(\S+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+).*/ ){ $resource=$1 ; $usage=$2 ; $softlimit=$3 ; $hardlimit=$4 ; $time=$5 ; $expire=$6 ; if ( $usage >= $softlimit ){ print "WARNING: VZquota limit exceeded on $vid: $resource usage->$usage, softlimit->$softlimit, hardlimit->$hardlimit, time->$time, expire->$expire " ; $ret=1; } }}exit($ret);'RET2=$? ################################################################################################ return##################################################################################### if [ $RET1 -gt $RET2 ]; then RET=$RET1 else RET=$RET2fi if [ $RET = 0 ]; then echo Ok.fiexit $RET</source> === check_vzquota Without SNMP ===<source lang="bash">#!/bin/bashRET=0DATA=`echo;sudo /usr/sbin/vzlist -1 2>/dev/null | xargs -I {} bash -c "echo {}:;sudo /usr/sbin/vzquota stat {} | sed 's/\*//g'"`if [ -z "$DATA" ]; then VPS_err=$(sudo /usr/sbin/vzlist -1 2>&1 1>/dev/null) if [ -n "$VPS_err" ] && [ "$VPS_err" == "Container(s) not found" ]; then echo "OK - $VPS_err"; exit 0; else if [ -n "$VPS_err" ]; then echo "UNKNOWN - Error: $VPS_err"; else echo "UNKNOWN - VZquota stats are not readable or empty. Maybe it is only readable for root and this script should be called by sudo."; fi exit 3; fifi echo "$DATA" | perl -n -e'my $vid ;my $ret=0 ;my $crit="";my $warn="";my $ok="";while(<STDIN>){ my %vid; if ( /^(\d+):.*/ ){ $vid=$1; } if ( /\D*(\d+):.*/ ){ $vid=$1; } if ( /\s*(\S+)\s+(\d+)\s+(\d+)\s+(\d+).*/ ){ $resource=$1 ; $usage=$2 ; $softlimit=$3 ; $hardlimit=$4 ; if ( $usage >= $hardlimit ){ $crit=$crit."VZquota limit exceeded on $vid: $resource usage->$usage, softlimit->$softlimit, hardlimit->$hardlimit, time->$time, expire->$expire " ; $ret=2; } elsif ( $usage >= $softlimit ){ $warn=$warn."VZquota limit exceeded on $vid: $resource usage->$usage, softlimit->$softlimit, hardlimit->$hardlimit, time->$time, expire->$expire " ; $ret=1; } $ok=$ok."$vid:$resource $usage/$softlimit\n"; }}if ($ret == 0) { print "OK - click on service-link for details...\n$ok";} elsif ($ret == 1) { print "WARNING - $warn\n";} else { print "CRITICAL - $crit\n";}exit($ret);'RET=$?exit $RET</source>The script calls <code>/usr/sbin/vzlist</code> by sudo. When doing this it normally needs a password, which check_nrpe will not know. Because of this it is necessary that you append a line like the following to <code>/etc/sudors</code> (user name an path should be adapted to the right ones on your system): nagios ALL=NOPASSWD: /usr/sbin/vzlist, /usr/sbin/vzquota === check_ubc Without SNMP ===<source lang="bash">#!/bin/bash# Servicestate description can have a http-link to the openvz-wiki# in case that a ressource is warning/critical. To use it:# 1. set "escape_html_tags=0" in nagios/etc/cgi.cfg# 2. set "my $linked=1;" in the first perl lines in this script#export FILE=/tmp/check_ubcRET=0ubc_file='/proc/user_beancounters';DATA='';if [ -r $ubc_file ]; then DATA=`cat $ubc_file`fiif [ -z "$DATA" ]; then echo "UNKNOWN - $ubc_file is not readable or empty. Maybe it is only readable for root and this script should be called by sudo."; exit 3;fi if [ -f $FILE ]; thenecho "$DATA" | perl -n -e'use Data::Dumper;my $linked=1; # 0:plain text output, 1:resourcename is a http-link to OpenVZ-wikimy $file=$ENV{"FILE"};my $ret=0 ;my $vid ;my $resource ;my $held ;my $maxheld ;my $barrier ;my $limit ;my $failcnt ;my %beancounters ;my %beancounters_old ;while(<STDIN>){ my %vmachine; if ( /\D*(\d+):.*/ ){ $vid=$1; $beancounters{$vid}=\%vmachine ; } if ( /^[\W\d]+([a-z]+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+).*/ ) { $resource=$1 ; $held=$2 ; $maxheld=$3 ; $barrier=$4 ; $limit=$5 ; $failcnt=$6 ; ${beancounters{$vid}}{$resource}=[$held , $maxheld , $barrier , $limit ,$failcnt ]; if ( ($held > $barrier) && ($barrier != 0) ) { print "WARNING: Limits on $vid: ".&url($resource,$linked)." held->$held , barrier->$barrier ( limit->$limit ) " ; $ret=1; } #print "$vid:$resource $held Barrier:$barrier "; }} # read and parse old dataopen(MYINPUTFILE, "<$file");while(<MYINPUTFILE>){ my %vmachine; if ( /\D*(\d+):.*/ ){ $vid=$1; $beancounters_old{$vid}=\%vmachine ; } if ( /^[\W\d]+([a-z]+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+).*/ ) { $resource=$1 ; $held=$2 ; $maxheld=$3 ; $barrier=$4 ; $limit=$5 ; $failcnt=$6 ; ${beancounters_old{$vid}}{$resource}=[$held , $maxheld , $barrier , $limit ,$failcnt ]; }} foreach my $vmachine_id (keys %beancounters) { foreach my $resource (keys %{$beancounters{$vmachine_id}} ) { if ( defined($beancounters{$vmachine_id}{$resource}[4]) && defined($beancounters_old{$vmachine_id}{$resource}[4]) ){ my $failcnt=$beancounters{$vmachine_id}{$resource}[4]; my $failcnt_old=$beancounters_old{$vmachine_id}{$resource}[4]; my $held=$beancounters{$vmachine_id}{$resource}[0]; my $maxheld=$beancounters{$vmachine_id}{$resource}[1]; my $barrier=$beancounters{$vmachine_id}{$resource}[2]; my $limit=$beancounters{$vmachine_id}{$resource}[3]; if ( $failcnt_old < $failcnt ){ print "CRITICAL: Increased failcnt $vmachine_id: ".url($resource,$linked)." from $failcnt_old to $failcnt (held->$held , maxheld->$maxheld , barrier->$barrier , limit->$limit ) " ; $ret=2; } #print "$vmachine_id: Old_Failcnt: $failcnt_old Failcnt: $failcnt \n"; } } }sub url { my ($name,$with_link) = @_; if ($with_link) { return "<a target=\"_blank\" href=\"http://wiki.openvz.org/".$name."#".$name."\">$name</a>"; } else { return $name; }}if ($ret == 0 ) { print "OK: All bean counters fine \n" ; }# print Dumper(%beancounters_old) ;# print "\n";exit($ret);' RET=$?fi echo "$DATA" > $FILEexit $RET</source>The script needs to read the <code>/proc/user_beancounters</code> file. This is normally only readable for root. Because of this it is necessary that you append a line like the following to <code>/etc/sudors</code> (user name an path should be adapted to the right ones on your system): nagios ALL=NOPASSWD: /usr/local/nagios/libexec/check_ubc Also don't forget to consider this on your <code>nrpe.cfg</code>, so that you call the script with sudo: command[check_ubc]=sudo /usr/local/nagios/libexec/check_ubc [[Category: Monitoring]]