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Monitoring Linux Using NCPA


This article covers how to go about setting up monitoring in Linux using NCPA. You will learn how to configure NCPA to monitor Linux.

NCPA is a cross-platform monitoring agent for Nagios Core and Nagios XI that runs on Windows, Linux/Unix, and Mac OS/X machines. Its features include both active and passive checks, remote management, and a local monitoring interface.


In Nagios XI wizards can be used to to perform configuration of hosts and services through the Web UI. Wizards take the complicated matter of creating hosts and services, defining configuration parameters, assigning contacts, contact groups, hostgroups, servicegroups, etc, into a easy steps form in the Nagios XI UI. 

Wizards can also be easily added to Nagios XI through the Admin -> Manage Wizards menu to expand the capabilities of Nagios XI.

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Configure filters in Nagios log server - Do it Now ?


This article covers method to customize Nagios Log Server Filters. Basically, to configure filters in Nagios log server, one needs to be familiar with the Filter Configuration options available within the log server.

Filters can be applied to messages before they are sent to Elasticsearch for indexing. They perform actions such as breaking apart messages into fields for easy searching, adding geo location information, resolving IP to DNS names and dropping messages you do not want indexed.

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Configure SSL / TLS in Nagios Log Server - How to do it ?


This article covers how to configure SSL/TLS in Nagios Log Server. SSL/TLS provides security between the end user's web browser and Nagios Log

Server by encrypting the traffic. This guide is intended for use by Nagios Log Server Administrators who require encrypted connections to their Nagios Log Server.

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Send test SNMP trap in Nagios - How does this work ?


This article covers how to send a trap to Nagios server to test SNMP Trap functionality.

Basically, when troubleshooting an SNMP Trap issue, it can be very helpful to remove the actual device that could be causing problems and use the snmptrap command instead.

So in this guide, you will learn all the methods of sending a trap to your Nagios server to test SNMP Trap functionality.


SNMP Trap Definition

The following trap definition can be placed in /etc/snmp/snmptt.conf which will allow the test traps sent above to be passed through to Nagios:

EVENT netSnmpExampleHeartbeatRate .1.3.6.1.4.1.8072.2.3.0.1 "netSnmpExampleHeartbeatRate" Normal
FORMAT SNMP netSnmpExampleHeartbeatRate
EXEC /usr/local/bin/snmptraphandling.py "$r" "SNMP Traps" "$s" "$@" "" "netSnmpExampleHeartbeatRate"


The default SNMP Trap configuration is stored in the /etc/snmp/snmptrapd.conf file and contains just two lines:

disableAuthorization yes
traphandle default /usr/sbin/snmptthandler

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Set up email settings in Nagios Log Server


This article will guide you on how #Nagios #Log Server sends emails and the effective ways to configure them.

By default, Nagios #Mail notification is sent using /bin/mail command. To change this, modify the definition for notify-host-by-email command and notify-service-by-email command in /etc/nagios/objects/commands. cfg file and configure the mail server accordingly.

Log Server has user-friendly features like a search function. You can refine your logs to a specific purpose, like failed logins, or a specific date, so you can easily find the logs you need. Log Server's customizable home dashboard lets you display log data in a variety of ways, whether that's a map or a bar chart.

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