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Mastering CentOS 7 Linux Server

You're reading from Mastering CentOS 7 Linux Server

Product type Paperback

Published in Jan 2016

Publisher Packt

ISBN-13 9781785282393

Length 298 pages

Edition 1st Edition

Tools

CentOS

Concepts

Servers

Authors (2):

Mohamed Alibi

BHASKARJYOTI ROY

View More author details

Table of Contents (11) Chapters

Preface

1. Advanced User Management

2. Security FREE CHAPTER

3. Linux for Different Purposes

4. Mail Server with Postfix

5. Monitoring and Logging

6. Virtualization

7. Cloud Computing

8. Configuration Management

9. Some Additional Tricks and Tools

Index

Establishing services' high availability using HAProxy

For this section, we are going to show in brief how to setup a high-availability/load balancer to control traffic over a specific service; in our case, we will use HTTP as for web server's traffic.

Source: assets.digitalocean.com

For this job, we are using HAProxy as an open source solution for load balancing and services' high availability through multiple servers. It is commonly used for a website's traffic load balancing. HAProxy distributes the workload over many servers that offer the same services (basically web servers, databases, and so on) to improve the overall performance of the service and its reliability.

As we said earlier, this section is going to install and configure a high availability load balancer to share the load between three web servers and a backup server in case of server or service failure to take over.

So, we will have an infrastructure that looks like this:

HAProxy server:
- OS: CentOS 7
- IP address: 172.25.25.166...

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Authors (2)

Alibi

Alibi

Mohamed Alibi is a Linux system administrator who works at the European Bioinformatics Institute, EMBL-EBI. His area of specialization is mass virtual machine and container provisioning and infrastructure administration for medium-sized distributed bioinformatics training facilities. He always keeps abreast of the latest innovations and developments in new technologies to solve his daily challenges. He holds an MSc in Networking and Computer Sciences in a collaborative program with the University of Illinois Urbana-Champaign and the IPT of Tunis, where he expanded his expertise in grid computing data management between the NCSA and IGB under the NIH project H3ABioNet. He published his first book in 2015 with Packt, called Mastering CentOS 7 Linux Server.

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BHASKARJYOTI ROY

BHASKARJYOTI ROY

Bhaskarjyoti Roy is a Linux and open source enthusiast with more than 12 years of experience in Linux system administration, virtualization, and cloud computing. He provides his services to many companies and organizations on a daily basis. He learns from his experience, which he has gained through self-learning and serving clients regularly. He has built more than 100 servers based on various CentOS versions running different types of services such as virtualization, web-server, e-mail, DNS, and many more. He is currently working with gotcha! Mobile Solutions, a Dallas based digital marketing agency specializing in local SEO, mobile web apps, and custom web development projects.

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