Nagios snmp trap receiver how to#
Nagios snmp trap receiver update#

Nagios Plugin Development Guidelines Post navigation.ItвЂ™s a good idea to structure your Nagios configs so that hosts are part of host groups, and services run on host groups. This service will run on any host that is added to any of those groups. Note that I have created three host groups for PDUs, UPSs, and automatic transfer switches (ATS). Here is what the above command might look like when defined as a service in Nagios:Д¬heck_command check_snmp!-protocol=2c -community=tripplite -oid=UPS-MIB::upsOutputCurrent.1 -warning=140 -critical=160 Once you have the check_snmp command working manually, itвЂ™s time to add a service to Nagios. Step 3: Define services to automate SNMP checks As you can see, since only 60 tenth-amps are being drawn, Please read the documentation for threshold syntax. In this case, if the value returned from the SNMP query is > 140 a warning is generated, and a critical alert occurs if the result is > 150. The arguments warning and critical set thresholds that determine when Nagios when generate a warning or a critical alert. usr/lib64/nagios/plugins/check_snmp -protocol=2c -community=tripplite -hostname=pdu-01 -oid=UPS-MIB::upsOutputCurrent.1 -warning=140 -critical=150 SNMP OK - 60 | UPS-MIB::upsOutputCurrent.1=60 The same information can be obtained through check_snmp: For example, in my previous post I used snmpget to check the total current on a PDU.

Nagios snmp trap receiver update#

Then, edit the Nagios configs (or update the nconf database) with the parameters from the command line. The best way to get started is to run the plugin manually on the command line and get everything working. Nagios uses the check_snmp plugin to query devices via SNMP. Step 2: Run the check_snmp plugin manually You have to get that operation working manually before you can automate it! Please read the previous post and get SNMP working before proceeding.

Nagios snmp trap receiver how to#

In Part 2, I described how to use snmpwalk and snmpget to query a device. Step 1: Retrieve information manually using snmpget IвЂ™ll refer you to the Nagios Core documentation to get Nagios up and running, and IвЂ™ll focus on how to set up Nagios to actively monitor devices with SNMP.

Nagios does a lot more than just SNMP monitoring. The open-source version is fine for getting started and setting up basic monitoring. Nagios is available as free open source software (Nagios Core), and the company offers additional non-free products with premium features. Instead, automate your monitoring with Nagios, a web-based monitoring tool for Linux that automates the process of actively querying devices and doing something with the information. You could try to remember to manually check the status of things periodically, but that would be missing the point of computers.

My last post showed how to monitor networked devices with SNMP.