In this article, we will discuss what Terraform is and how to install terraform on various Linux distributions using HashiCorp repositories. What is Terraform? Terraform is a popular cloud orchestration tool in the world of automation, which is used to deploy your infrastructure through the IAC (Infrastructure as code) approach. Terraform is built by Hashicorp
How to Speed Up Apache with Varnish Cache on CentOS 7
Varnish Cache (commonly known as Varnish), is an open-source, popular reverse-proxy HTTP accelerator intended for speeding up web servers. It is engineered for excessively utilized API endpoints and also for dynamic sites that serve massive-content and experience high-traffic. For Nginx: How to Install Varnish Cache for Nginx on CentOS 7 It basically helps to scale
How to Speed Up Nginx with Varnish Cache on CentOS 7
Varnish Cache (also referred to as Varnish) is an open-source, high-performance HTTP accelerator designed for speeding up web servers. In our last articles, we’ve explained how to setup Varnish Cache for Apache on CentOS 7 and CentOS 8. In this article, we will show you how to install and use Varnish Cache as a front-end
What is Automation and Configuration Management with CHEF – Part 1
Let’s take a simple scenario, you have 10 redhat servers where you have to create a ‘tecmint’ user in all the servers. The direct approach is, you need to login into each server and create the user with the useradd command. When the servers are 100s or 1000s, login into all servers one by one
How To Prevent PHP-FPM From Consuming Too Much RAM in Linux
If you have deployed a LEMP (Linux, NGINX, MySQL/MariaDB, and PHP) stack, then you are probably using FastCGI proxying within NGINX (as an HTTP server), for PHP processing. PHP-FPM (an acronym of FastCGI Process Manager) is a widely-used and high-performance alternative PHP FastCGI implementation. Here are the useful guides on setting up LEMP Stack in
How to Install and Configure Hive with High Availability – Part 7
Hive is a Data Warehouse model in Hadoop Eco-System. It can perform as an ETL tool on top of Hadoop. Enabling High Availability (HA) on Hive is not similar as we do in Master Services like Namenode and Resource Manager. Automatic failover will not happen in Hive (Hiveserver2). If any Hiveserver2 (HS2) fails, running jobs
How to Co-author Documents in Linux with ONLYOFFICE Docs
Document collaboration as the practice of multiple people working simultaneously on a single document is really important in today’s technologically advanced age. Using document collaboration tools, users can view, edit, and work simultaneously on a document without sending emailing attachments to each other all day. Document collaboration is sometimes called co-authoring. Real-time document co-authoring is
How to Create a KVM Virtual Machine Template
A virtual machine template is essentially a copy of the installed virtual machine that comes in handy when you want to deploy multiple instances of virtual machines. Creating a template is a 3 step process that involves creating a virtual machine, installing all the requisites packages that you want to be installed, and finally cleaning
How to Set Up High Availability for Resource Manager – Part 6
YARN is the Processing Layer of Hadoop, which consists of the Master (Resource Manager) and Slave (Node Manager) services to process the data. Resource Manager (RM) is the critical component that is responsible for resource allocation and management among all the jobs running in Hadoop Cluster. It is always recommended and best practice to have
How to Create Virtual Machines in KVM Using Virt-Manager
As you get started, ensure that the KVM hypervisor is installed on your system. An acronym for Kernel-based Virtual Machine, KVM is a combination of kernel modules & utilities needed to run virtual machines on a host system. These include QEMU, virt-install, libvirtd daemon, virt-manager and so many more. We have elaborate articles on: How