Nagios for Linux infra

Nagios is an open source computer software application that monitors the whole infrastructure of a computer network or a system. It was originally developed by Ethan Galstad and his group of developers over a period of three years from 1996 to 1999. When the first project was released it was named as NetSaint. In 2002 due to trademark issues over the name Ethan and his team renamed the project as Nagios which is an acronym. Nagios means – Nagios ain’t gonna insist on Sainthood. Due to the novelty and utility it provided to the security and monitoring of networks and computer systems, it soon became a necessary module in Linux Online Training.

Over the years Nagios has evolved to become a complete monitoring system for IT infrastructure which includes all the systems, applications, services and business processes. It monitors the system and identifies problems much before they can cause critical issues with processes. Linux Course Online includes basic training of Nagios in their modules.

The main features of Nagios are:

Monitoring all systems within an IT infrastructure – Nagios is a single tool that monitors all aspects of the IT infrastructure. It includes applications, services, network protocols, system metrics, OS and other components. It is an outstanding open source application that takes care of all the problems. Linux coaching all over the world will exhibit the awesome monitoring prowess of Nagios in their Linux education.

Can be personalized – The powerful API (Application program interface) of Nagios allows customization as per the in-house requirements. It is easy to implement and gives excellent service.

Problem identification and remedy – The best part of Nagios is that it immediately alerts about problems. It provides immediate communication in response to an encountered problem.

Periodical reporting – All the responses to problem identification and specific alerts are present in the periodical report generated by the system.

Easy to integrate with other systems – Multiple APIs of Nagios will help to integrate it with other system easily. The basic architecture of the application allows this making it easy to implement.

Always developing – The vibrant community support to Nagios enables it to evolve and develop continuously. The add ons really help the tool and interface to become better.

Reliable and Stable – Nagios has been developing since its release. Over the years thousands of nodes for monitoring have been developed which help the overall IT infrastructure.

Linux and all its distributions like Red Hat Linux and SuSE have benefitted the most from this excellent monitoring tool. The main benefits that it provides are:

It increases availability of resources – Due to its quick recognition and problem rectification, Nagios is able to keep resources like servers, and applications which are critical up most of the time. This helps the business as a whole.

Improves the System – The fast detection helps prevent network outages and protocol failures which are responsible for downtime.

The training of Nagios is included in the Linux training fees paid for Linux Certification course. When joining online Linux Training you will get to learn about the monitoring services that this tool provides.

Why Linux command line is powerful tool

Before getting to understand why Linux command line is a powerful tool, let us try and know what a command line is. When you start off your online Linux training the command line invariably is the first thing you will see on the screen. It is a means to interact with the computer and ask it to do something.

Command Line Interface was the way to interact unless the development of Graphic User Interface system developed. Still it is the fastest and the most effective way to interact mainly used by computer professionals. Casual users now mostly use GUI (Graphic User Interface). However if you want to partake the Linux Administration Training command line knowledge is a must. This is what they start with at Red Hat Linux boot camp.

The main reason of the Linux command Line still remaining a powerful tool for developers, researchers and engineers is:

 

Quick and easy – If you are not using command line the commands may seem a bit difficult to remember, but it is the quickest way of operations. Graphic User Interface will take at least 100 times more time to execute the same task. For example take a simple task of rearranging the files, takes about 2 to 3 minutes to execute through a GUI. With a command line it hardly takes 30 seconds.

Can be customized – A window or a Mac has a GUI which runs in particular way and you cannot change it unless the change you want comes in the next update. Remember the boot time of Windows VISTA. However with Linux command line you can group commands together as per your need. You have to learn the commands, but to drive a car you need to learn too.

Great for programming – Command lines makes it easy to build programs at the kernel level which is impossible with GUI. That is the reason Linux command lines are among the most powerful tools.

 

Makes you learn how the computer works – While working with Windows or Mac GUI you would never have the idea how a computer works. While you learn the operation of Linux command in LinuxFundamentals training how the computer works and organizes. You will be surprised that the tasks you perform daily with the mouse are quicker when using a command line.

When you enroll for Linux Admin Certification Courses, make sure you have experimented with the Linux command line. You will learn quickly whether in a Linux coaching or Linux Course Online.