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Install HAProxy Load Balancer on CentOS Understand about High Available (HA) and Load Balancing Configuring the load balancer Setting up HAProxy for load balancing is a quite straight forward process. Basically all you need to do is tell HAProxy what kind of connections it should be listening for and which servers it should relay the connections to. This is done by creating a configuration file  /etc/haproxy/haproxy.cfg  with the defining settings. You can read about the configuration options at  HAProxy documentation  if you wish to find out more. Open a .cfg file for edit for example using  vi  with the following command sudo vi /etc/haproxy/haproxy.cfg Add the following sections to the the file. Replace the   with what ever you want to call you servers on the statistics page and the  > with the private IPs for the servers you wish to direct the web traffic to. You can check the private IPs at your  UpCloud Co...

Load balancing is a common solution for distributing web applications horizontally across multiple hosts while providing the users a single point of access to the service. It aims to optimize resource usage, maximize throughput, minimize response time, and avoid overloading any single resource.  HAProxy  is one of the most popular opensource load balancing software, which also offers high availability and proxy functionality. It’s available for install on many Linux distributions as well as Solaris and FreeBSD. HAProxy is particularly suited for very high traffic websites, and is therefore often used to improve web service reliability and performance for multi-server configurations. This guide lays out the steps for setting up HAProxy as a load balancer on CentOS 7 to its own cloud host which then directs the traffic to your web servers. As a pre-requirement for following this guide, you’ll need to have a minimum of two servers with at...