Icinga is an enterprise grade open source monitoring system which keeps watch over networks and any conceivable network resource, notifies the user of errors and recoveries and generates performance data for reporting. It is a fork of Nagios. This tutorial explains how to install Icinga on a Debian Squeeze server to monitor this server and another Debian Squeeze server.
Read more »Protecting Nagios From Zero-Day Exploits with ModSecurity
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You have built a rock solid firewall, tested it with nmap scanning for ports that were open, locked down SSH with port knocking, restricted outgoing ports with iptables, setup psad to block attacks, and tcp_wrappers to limit access so you are set right? Well, not exactly....
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Monitoring a Cisco Router with Nagios
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Sometimes you will need to create service checks using the MIBs that you can discover with snmpwalk. This tutorial will show you the process of creating service checks for a Cisco router manually.
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Official Nagios Training Schedule January 2011
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The official Nagios training classes, taught online by Mike Weber of CyberMontana Inc, have been scheduled for January 2011.
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Nagios Face-lift with V-Shell
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Nagios is the foundation for many networking applications world wide and is know for its flexibility. Building upon those concepts is a new project named the Nagios Visual Shell (V-Shell). What follows is a short review of V-Shell and an interview with the lead developer of this new Nagios project.
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Changing the Looks of Nagios in 60 Seconds
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Did you know you can easily change the way Nagios looks? Nagios has a number of options for frontends, or skins for the Nagios web interface. These frontends change the look of Nagios. Often these frontends are a matter of preference as they do not change the functionality of the program at all. They are easily changed and and restored if you follow some basic principles.
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Nagios trademark truth
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The purpose of this post is to inform the Nagios Community of serious Nagios trademark violations by a German company by the name of NETWAYS, and its managing director -- Julian Hein.
Read more »Ubuntu 10.04: Check IMAP with Nagios
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You can set up checks for you Ubuntu server in many areas including checking that the IMAP server is responding correctly to connections. These plugins are easy to configure and provide assurance that your Mail Delivery Agent is up and working.
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Scaling NSClient++ with Nagios
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Nagios can perform multiple checks using one connection on a Windows server using the CheckMultiple function and the NSClient++. This feature which acts much like check_multi allows you to save network and system resources with one check. The Nagios server then brings the "bad news" to the top by showing any checks that have Critical state in the web interface.
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NagiosGrapher on CentOS
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The important aspect of graphing is that it enables a busy administrator to evaluate a server visually, often making more sense than strings of data. NagiosGrapher is a tool that you can use with Nagios to graph information that you want to evaluate as an administrator. This tutorial will show you how to install NagiosGrapher in preparation for the data to be graphed.
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Regional Nagios Server Setup
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The major goal of the regional server is to distribute the results of all service checks to the central server. The regional Nagios machines must use OCSP and OCHP in order to send the proper updates to the central server.
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Nagios: Central Monitoring
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This is part two of a three part series on distributed monitoring. You can use passive service and host checks to allow non-central Nagios servers to collect data from a network of machines and then transfer that information to a central Nagios server.
Read more »Nagios: Monitor Cisco Routers Course
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Nagios provides a monitoring option to evaluate routers and switches using SNMP, Simple Network Management Protocol. This course will show you how to set up Nagios and specifically how to locate the information you want to monitor with SNMP on a Cisco router. This is a Free Course available to anyone.
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Nagios configuration Tools (Web frontends or GUI)
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Nagios is the industry standard in enterprise-class monitoring for good reason. It allows you to gain insight into your network and fix problems before customers know they even exist. It's stable, scalable, supported, and extensible.
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Learn how to install and configure Nagios on different operating systems
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Learning Nagios 3.0 is a comprehensive configuration guide to monitor and maintain your network and systems. It is a practical guide to setting up the Nagios 3.0 open source network monitoring tool, installing and configuring Nagios 3 on various operating systems. It will help understand system monitoring and how Nagios works.
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