Wojciech Kocjan - Learning Nagios 4

Wojciech Kocjan is a system administrator and programmer with 10 years of experience. His work experience includes several years of using Nagios for enterprise IT infrastructure monitoring. He also has experience in large variety of devices and servers, routers, Linux, Solaris, AIX servers and i5/OS mainframes. His programming experience includes multiple languages (such as Java, Ruby, Python, and Perl) and focuses on web applications as well as client-server solutions.

I'd like to thank my wife Joanna and my son Kacper for all of the help and support during the writing of this book.

Pter Kroly "Stone" Juhsz was born in 1980 in Hungary, where he lives with his family and their cat. He holds an MSc degree in Programmer Mathematics. At the very beginning of his career, he turned toward operations. Since 2004, he has been working as a generalmainly GNU/Linuxsystem administrator.

His average working day includes patching in the server room, installing servers, managing PBX, maintaining VMware vSphere infrastructure and servers at Amazon AWS, managing storage and backups, monitoring with Nagios, trying out new technology, and writing scripts to ease everyday work.

His interests in IT are Linux, server administration, virtualization, artificial intelligence, network security, and distributed systems. His hobbies include learning Chinese, program developing, reading, hiking, playing the game Go, listening to music and unicycling. For his contact information or to find out more about him, you can visit his website at http://midway.hu.

Emilien Kenler , after working on small web projects, began to focus on Game Development in 2008, when he was in high school. Until 2011, he worked for different groups and has specialized in system administration. In 2011, he founded a company, HostYourCreeper (http://www.hostyourcreeper.com) to sell Minecraft servers, while he was studying Computer Science Engineering. He created a lightweight IaaS based on new technologies such as Node.js and RabbitMQ.

Thereafter, he worked at TaDaweb as a system administrator, building its infrastructure and creating tools to manage deployments and monitoring. In 2014, he began a new adventure at Wizcorp, Tokyo. He will graduate at the end of the year from the University of Technology of Compigne.

Daniel Parraz was raised in New Mexico and began using computer-type devices at an early age. After graduating from school, he found a technical support job and started to learn Linux. He has been administrating Linux/Unix systems since 2001 and has worked on large storage engineering and installations with Fortune 500 companies and start-ups. He currently lives in Albuquerque, New Mexico, with his family, and enjoys hiking, reading, and growing fruits and vegetables as a volunteer with an agriculture group supported by a local community.

Pall Sigurdsson is a lifelong open source geek with special interest in automation and monitoring. He is known for his work in developing Adagios, a modern web status, and a configuration interface to monitor systems that are compatible with Nagios.

Pall also maintains other projects such as Pynag (a high-level python API for Nagios configuration files) and okconfig (a set of preconfigured Nagios plugins and configuration templates).

www.PacktPub.com

Support files, eBooks, discount offers and more

You might want to visit www.PacktPub.com for support files and downloads related to your book.

Did you know that Packt offers eBook versions of every book published, with PDF and ePub files available? You can upgrade to the eBook version at > for more details.

At www.PacktPub.com, you can also read a collection of free technical articles, sign up for a range of free newsletters and receive exclusive discounts and offers on Packt books and eBooks.

http://PacktLib.PacktPub.com

Do you need instant solutions to your IT questions? PacktLib is Packt's online digital book library. Here, you can access, read and search across Packt's entire library of books.

Why Subscribe?

• Fully searchable across every book published by Packt
• Copy and paste, print and bookmark content
• On demand and accessible via web browser

Free Access for Packt account holders

If you have an account with Packt at www.PacktPub.com, you can use this to access PacktLib today and view nine entirely free books. Simply use your login credentials for immediate access.

Preface

The book is a practical guide to setting up Nagios 4, an open source network monitoring tool. It is a system that checks whether hosts and services are working properly and notifies users when problems occur. The book covers the installation and configuring of Nagios 4 on various operating systems, and it focuses on the Ubuntu Linux operating system.

The book takes the reader through all the steps of compiling Nagios from sources, installing, and configuring advanced features such as setting up redundant monitoring. It also mentions how to monitor various services such as e-mail, WWW, databases, and file sharing. The book describes what SNMP is and how it can be used to monitor various devices. It also gives the details of monitoring the Microsoft Windows computers. The book contains troubleshooting sections that aid the reader in case any problems arise while setting up the Nagios functionalities.