Linux

Nagios Alert Emailer

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Description:

A direct replacement for the basic nagios email command. This perl script will take standard Nagios commandline parameters and send an email to a configured email server, recipient and address.

Current Version

Last Release Date

June 18, 2009

Compatible With

Owner

Nagios Exchange

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Project Files
FileDescription
send_mail.pl

Nagios Alert Emailer

Project Notes
This script is a direct replacement for the basic Nagios emailer. This perl script provides the following features: * Allows you to specify the senders email address * Allows you to specify the destination email address/group * Allows you to differentiate between Host and Service outages * Allows you to connect directly to any SMTP server * Doesn't require any local sendmail configuration * Uses standard Net::SMTP module * Runs within Nagios's embedded perl interpreter * Allows you to format the alert message subject and body * Allows you to send emails to different alert groups based on nagios configuration Configuration steps -------------- I put this in the nagios plugins directory /usr/local/nagios/libexec but you can put it anywhere. commands.cfg --- define command{ command_name notify-by-email command_line $USER1$/send_mail.pl -n "$NOTIFICATIONTYPE$" -h "$HOSTNAME$" -s "$HOSTSTATE$" -a "$HOSTADDRESS$" -i "$HOSTOUTPUT$" -d "$LONGDATETIME$" -e "$CONTACTEMAIL$" } define command{ command_name host-notify-by-email command_line $USER1$/send_mail.pl -n "HOST $NOTIFICATIONTYPE$" -h "$HOSTNAME$" -s "$HOSTSTATE$" -a "$HOSTADDRESS$" -i "$HOSTOUTPUT$" -d "$LONGDATETIME$" -e "$CONTACTEMAIL$" } define command{ command_name service-notify-by-email command_line $USER1$/send_mail.pl -n "SERVICE $NOTIFICATIONTYPE$" -h "$HOSTNAME$" -s "$SERVICESTATE$" -a "$HOSTADDRESS$" -i "$SERVICEDESC$ - $SERVICEOUTPUT$ - $SERVICECHECKCOMMAND$" -d "$LONGDATETIME$" -e "$CONTACTEMAIL$" } contacts.cfg --- define contact{ contact_name contact host_notification_commands host-notify-by-email service_notification_commands service-notify-by-email email email@address.com .... rest of contact details .... }
Reviews (2) Add a Review
modern versions of Net::SMTP need removed
by john_lines, February 28, 2014
In my systems which run Debian Wheezy I needed to remove the
at the end of the datasend lines i.e.

$smtp->datasend("To: $mailto");
$smtp->datasend("From: $mailfrom");
$smtp->datasend("Subject: $mailsubject");
$smtp->datasend("
");

so that the headers acually are taken as headers.

I also set the subject as:
# $mailsubject = "Nagios Monitoring Alert: $opt_h is $opt_s";
$mailsubject = "$opt_n: $opt_h $opt_D is $opt_s";

which maximises the information in a view of mail messages with just headers, to prioritise dealing with alerts
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by dimsum, October 31, 2011
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