If you are a system administrator, or IT manager, or someone who is responsible for IT infrastructure, you should implement an enterprise level monitoring solution.
The shell script you’ve written that does a ps -ef and sends you an email might do the basic job, but it doesn’t count as monitoring.
If you want to be proactive, have peace of mind, and sleep well at night, you should implement a robust system and network monitoring solution for your IT infrastructure.
Thanks for visiting this article from the Nagios newsletter. We’ll be posting several Nagios XI tutorials in the upcoming weeks.Subscribe to our articles and don’t miss any future Nagios XI step-by-step tutorials.
- Nagios Core is free and open source.
- Nagios XI is $1,295 (to monitor unlimited number of hosts). This is perpetual license — Once you’ve purchased the software, use it as long as you want without any additional license fees.
Nagios is one of the best open source server and network monitoring solutions available. Using the flexible nagios framework, you can monitor pretty much anything (including database and custom application). This article, using 4 simple steps, explains how to setup contact definitions who will get notification when a host or service has any issues.
Earlier we also discussed about how to setup Nagios and monitor Windows server, monitor Linux Server, monitor VPN sessions and monitor network switch.
Nagios is hands-down the best monitoring tool to monitor host and network equipments. Using Nagios plugins you can monitor pretty much monitor anything.
I use Nagios intensively and it gives me peace of mind knowing that I will get an alert on my phone, when there is a problem. More than that, if warning levels are setup properly, Nagios will proactively alert you before a problem becomes critical.
Earlier I wrote about, how to setup Nagios to monitor Linux Host, Windows Host and VPN device.
In this article, I’ll explain how to configure Nagios to monitor network switch and it’s active ports.
Previously we discussed about how to use Nagios to monitor a Linux and Windows server. In this article, let us review how to monitor active sessions and temperature of VPN device using Nagios. You can monitor pretty much anything about a hardware using the nagios check_snmp plug-in.
In the previous articles we discussed about Nagios 3.0 Jumpstart guide and How to monitor remote Linux host using Nagios 3.0. In this article, l’ll explain how to monitor remote windows machine and the various service running on the windows server using nagios monitoring server. Following three sections are covered in this article.
II. 4 steps to install nagios on remote windows host
- Install NSClient++ on the remote windows server
- Modify the NSClient++ Service
- Modify the NSC.ini
- Start the NSClient++ Service
III. 6 configuration steps on nagios monitoring server
- Verify check_nt command and windows-server template
- Uncomment windows.cfg in /usr/local/nagios/etc/nagios.cfg
- Modify /usr/local/nagios/etc/objects/windows.cfg
- Define windows services that should be monitored.
- Enable Password Protection
- Verify Configuration and Restart Nagios.
In the previous post Nagios 3.0 Jumpstart guide , I explained the overview, installation and configuration of Nagios 3.0 on Red Hat Server. In the following three chapters, I’ll explain how to monitor a remote Linux host and the various services running on the remote host. Also, please refer to all our Nagios articles.
II. 6 steps to install Nagios plugin and NRPE on remote host.
- Download Nagios Plugins and NRPE Add-on
- Create nagios account
- Install Nagios Plugins
- Install NRPE
- Setup NRPE to run as daemon
- Modify the /usr/local/nagios/etc/nrpe.cfg
III. 4 Configuration steps on the Nagios monitoring server to monitor remote host:
- Download NRPE Add-on
- Install check_nrpe
- Create host and service definition for remote host
- Restart the nagios service
Let us discuss the overview, installation and configuration of Nagios, a powerful open source monitoring solution for host and services.
I. Overview of nagios
II. 8 steps for installing nagios on Linux:
- Download the nagios and plugins
- Take care of the prerequisites
- Create user and group for nagios
- Install nagios
- Configure the web interface
- Compile and install nagios plugins
- Start Nagios
- Login to web interface
III. Configuration files overview