Send SMS notifications via the master unit GSM module in Nagios

Owned by Vladimir Tayzhev
Last updated: Oct 27, 2023
4 min read

To send SMS notifications via GSM modem in the Vutlan master units in Nagios, you can use the following scripts:

SMS for v. 2.3.3 and lower 

SMS for v. 2.4.0 and higher

sendsms_skycontrol
#!/bin/bash # Script for sending SMS notifications via GSM-modem usage() { cat << EOF usage: $0 options OPTIONS: -?,-h Show this message -H Hostname or IP address -u User name -p Password -P Phone for sending -m Message for sending EOF } HOSTIP= USERNAME= PASSWORD= TOPHONE= MESSAGE='Test' while getopts “hH:u:p:P:m:” OPTION do case $OPTION in h) usage exit 1 ;; H) HOSTIP=$OPTARG ;; u) USERNAME=$OPTARG ;; p) PASSWORD=$OPTARG ;; P) TOPHONE=$OPTARG ;; m) MESSAGE=$OPTARG ;; ?) usage exit ;; esac done if [[ -z $HOSTIP ]] || [[ -z $USERNAME ]] || [[ -z $PASSWORD ]] || [[ -z $TOPHONE ]] || [[ -z $MESSAGE ]] then usage exit 1 fi # 1) hash HASH=`echo -n ${PASSWORD} | openssl dgst -sha1 | awk '{print $NF}'` # 2) autorisation RESPONSE=`curl -s -d "querytype=auth&name=${USERNAME}&h=${HASH}" "${HOSTIP}/engine.htm"` # 3) session key KEY=`echo -n ${RESPONSE} | awk -F"\"" '{print $4}'` # 4) send SMS curl -d "querytype=send_sms_message&k=${KEY}" --data-urlencode "to_phone=${TOPHONE}" --data-urlencode "message=${MESSAGE}" ${HOSTIP}/engine.htm > /dev/null 2>&1

Send SMS through a script example:

/etc/nagios/objects/schosts.cfg
./sendsms_vutlan -H 192.168.0.193 -p secret -P +777 -m 'This is a text'

where 192.168.0.193 - address of the master unit with GSM modem;
       secret  - user password for the master unit with GSM modem;
       +777 - phone number to send a message; 
       'This is a text' - forwarded message text;

In order to bind the current script to Nagios, you must create a notification command in the Nagios configuration file:

/etc/nagios/objects/commands.cfg
define command{ command_name notify-service-by-sms command_line $USER1$/sendsms_vutlan -H 192.168.1.190 -p guest -P $CONTACTPAGER$ -m "Nagios – $NOTIFICATIONTYPE$ : $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$" } define command{ command_name notify-host-by-sms command_line $USER1$/sendsms_vutlan -H 192.168.1.190 -p guest -P $CONTACTPAGER$ -m "Nagios – $NOTIFICATIONTYPE$ : Host $HOSTALIAS$ is $HOSTSTATE$" }

You must also create or edit a Nagios contact: 

/etc/nagios/objects/contacts.cfg

Delivered notifications example:

Notification 1

 

Notification 2