See the previous post for more details on usage, the only difference in this version is the SNMP error checking which does not impact usage or installation.

Installation

Place the check_cuda file in the nagios libexec folder along with all your other check plugins.  Don’t forget to
set permissions and ownership as appropriate for your installation.  Version 3 was tested under PHP5 and should work with either 4 or 5 by simply using check_cuda.  Be sure to edit the check_cuda script and set the value of $cuda_firmware (line 10) to either 3 or 4 depending on the firmware version of the Barracdua Spam and Virus firewalls you will be using the plugin to check.

Usage

Usage: check_cuda <host-ip> <community-string> <queue> <warning-threshold> <critical-threshold>

Queue can be either in, out or bounce for firmware version 3 firewalls; for version 4 firewalls the values are
in, out, deferred or latency

Warning and Critical values should be positive integers

Prerequisites

This plugin requires php and php_snmp support (as noted this version has been tested with PHP 5)

Nagios Configuration

Commands

Define commands as shown below:

define command {
command_name Check Barracuda Inbound Mail Queue
command_line $USER1$/check_cuda $HOSTADDRESS$ public in 500 1000
}

define command {
command_name Check Barracuda Outbound Mail Queue
command_line $USER1$/check_cuda $HOSTADDRESS$ public out 500 1000
}

Obviously you will need to change the SNMP community string from public to match your community string. If you wish you could also add a check command to track the bounce/deferred queue and even averagelatency on version 4 firmware. You may also want to use different warning and critical threshold than I did (500 and 1000 respectively). These numbers may not be right for your situation.
Contact Groups

Add a service group like the one below (customizing for your site of course):

# contactgroups Cuda Admins
define contactgroup {
contactgroup_name Cuda_Admins
alias Cuda_Admins
members joe,sally,fred
}

Service Templates

define service {
name Check Barracuda Mail Queue Template
use generic-service
contact_groups Cuda_Admins
register 0
}
Services

Add the service as needed to your hosts, sample shown below:

define service {
service_description Check Barracuda Inbound Mail Queue
use Check Barracuda Mail Queue Template
host_name yourcuda
check_command Check Barracuda Inbound Mail Queue
}

define service {
service_description Check Barracuda Outbound Mail Queue
use Check Barracuda Mail Queue Template
host_name yourcuda
check_command Check Barracuda Outbound Mail Queue
}

Here is an excerpt from the Barracuda version 4 release notes that describes the new OID/Objects and their meanings:

A special note of thanks to Ray who pointed out that the plugin needed an update to support the new firmware and for testing the new version.  Thanks Ray!

Or click on this link to see the code within this post.

> check_cuda

#!/usr/bin/php -q
<?php
#
# check_cuda - nagios plugin
#
#
# Copyright (C) 2007 Mike Seigafuse
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
# Report bugs to: mike@seigafuse.net
#
# This script will check counters of a Barracuda Spam Firewall using PHP SNMP functions
# and return them along with the status.
#
$numbparams = sizeof($argv);
# should be 5
if ($numbparams < 5 ) {
	echo "Usage: check_cuda <host ip> <community string> <queue> <warn> <crit>\\n";
	echo "     Queue can be either in, out or bounce\\n";
	echo "     Warning and Critical values should be positive integers\\n";
	exit;
}
$host = $argv[1];
$cstring = $argv[2];
$checkqueue = strtoupper($argv[3]);
$warn = $argv[4];
$crit = $argv[5];
 
$mailinqueue = "1.3.6.1.4.1.2021.8.1.101.1";
$mailoutqueue = "1.3.6.1.4.1.2021.8.1.101.2";
$mailbouncequeue = "1.3.6.1.4.1.2021.8.1.101.3";
 
function getsnmpvalue($host, $cstring, $oid) {
     $valuestring = snmpget($host, $cstring, $oid);
     $colpos = strpos($valuestring, ":");
     $subvalue = trim(substr($valuestring, $colpos+1));
     return $subvalue;
}
 
# Ready set go, time to do the real work
 
if ($checkqueue == "IN") {
	$queuelen = getsnmpvalue($host, $cstring, $mailinqueue);
} elseif ($checkqueue == "OUT") {
         $queuelen = getsnmpvalue($host, $cstring, $mailoutqueue);
} elseif ($checkqueue == "BOUNCE") {
         $queuelen = getsnmpvalue($host, $cstring, $mailbouncequeue);
}
if ($queuelen < $warn) {
	$format = '%s OK - %d messages queued |Mail%sQueue=%d;%d;%d';
	printf($format, $checkqueue, $queuelen, $checkqueue, $queuelen, $warn, $crit);
	exit(0);
}
if (($queuelen > $warn) && ($queuelen < $crit)) {
	$format = '%s Warning - %d messages queued |Mail%sQueue=%d;%d;%d';
	printf($format, $checkqueue, $queuelen, $checkqueue, $queuelen, $warn, $crit);
	exit(1);
}
if ($queuelen > $crit) {
	$format = '%s Critical - %d messages queued |Mail%sQueue=%d;%d;%d';
	printf($format, $checkqueue, $queuelen, $checkqueue, $queuelen, $warn, $crit);
	exit(2);
}
 
?>

Usage

Usage: check_cuda host-ip community-string queue warning-threshold critical-threshold

Queue can be either in, out or bounce
Warning and Critical values should be positive integers

Note: Version 1.5 of the zip file includes check_cuda5, which is a version of the script that works under PHP5

Prerequisites

This plugin requires php_snmp support

Nagios Configuration

Commands

Define commands as shown below:

define command {
command_name Check Barracuda Inbound Mail Queue
command_line $USER1$/check_cuda $HOSTADDRESS$ public in 500 1000
}

define command {
command_name Check Barracuda Outbound Mail Queue
command_line $USER1$/check_cuda $HOSTADDRESS$ public out 500 1000
}

Obviously you will need to change the SNMP community string from public to match your community string. If you wish you could also add a check command to track the bounce queue. You may also want to use different warning and critical threshold than I did (500 and 1000 respectively). These numbers may not be right for your situation.

Contact Groups

Add a service group like the one below (customizing for your site of course):

# contactgroups Cuda Admins
define contactgroup {
contactgroup_name Cuda_Admins
alias Cuda_Admins
members joe,sally,fred
}

Service Templates

define service {
name Check Barracuda Mail Queue Template
use generic-service
contact_groups Cuda_Admins
register 0
}

Services

Add the service as needed to your hosts, sample shown below:

define service {
service_description Check Barracuda Inbound Mail Queue
use Check Barracuda Mail Queue Template
host_name yourcuda
check_command Check Barracuda Inbound Mail Queue
}

define service {
service_description Check Barracuda Outbound Mail Queue
use Check Barracuda Mail Queue Template
host_name yourcuda
check_command Check Barracuda Outbound Mail Queue
}

If you have any questions, comments or problems then just post a comment on this post and I’ll get back to you.

Update (January 2008)

There are now some additional plug-ins available to perform the same functions written in PERL and with hooks to graphing solutions. You can find them here.

Update (March 2010)

The new version (1.5) of the zip file contains check_cuda5, which has been updated to work with PHP5 (check_cuda was originally written under php4 and seemed to have an issue under php5 with the shebang line)

> nortel_users.php

#!/usr/bin/php -q
<?php
$no_http_headers = true;
$hostname = $argv[1];
$snmp_community = $argv[2];
$snmp_version = $argv[3];
# This is a small utility to count the number of user sessions on a nortel 
# OID to use to get list of active users
$oid = ".1.3.6.1.2.1.31.1.1.1.1";
$resultarray = array();
if($argv[1] != '' ){
	$resultarray = snmpwalk($hostname,$snmp_community, $oid);
	$numb_users = ((sizeof($resultarray))-3);
	print "users:$numb_users\\n";
}
# Thats all folks
?>

http://yourhost/nagtocacti.php?hostip=$HOSTADDRESS$&hostname=$HOSTNAME$

And in the extended information template for Perfparse hosts I entered:

http://yourhost/path-to/perfparse.cgi?select_metric=1&host_name=$HOSTNAME$

This procedure assumes you have Nagios, Perfparse and Cacti installed on the same host, and that you have saved the code below in the web root of that server as nagtocacti.php and modified the dbhost, dbname, dbuser and dbpass values to match your environment.

> nagtocacti.php

<?php
$dbhost = "localhost";
$dbname = "cacti";
$dbuser = "DB username";
$dbpass = "DB user's password";
$hostip = $_REQUEST['hostip'];
$hostname = strtoupper($_REQUEST['hostname']);
$hostid = "";
$link = mysql_connect($dbhost, $dbuser, $dbpass)
or die("Could not connect : " . mysql_error());
mysql_select_db($dbname) or die("Could not select database");
echo "Searching for host by IP...";
$query = "select id from host where hostname='$hostip'";
$result = mysql_query($query)
or die("Query failed : " . mysql_error());
while ($row = mysql_fetch_array($result, MYSQL_NUM)) {
$hostid = $row[0];
}
if ($hostid != "") {
$myurl = "<meta content="\\" http-equiv="refresh" />";
echo "$myurl";
die();
} else {
echo "Searching for host by name";
$query = "select id from host where hostname like '$hostname%'";
$result = mysql_query($query)
or die("Query failed : " . mysql_error());
while ($row = mysql_fetch_array($result, MYSQL_NUM)) {
$hostid = $row[0];
}
if ($hostid != "") {
$myurl = "<meta content="\\" http-equiv="refresh" />";
echo "$myurl";
die();
}
echo "Host not found in Cacti...";
}
?>