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CentOS Tips - DesignLinux

Jan 13 2021
  • designlinux
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    • CentOS
    • Fedora
    • KVM
    • RedHat
    • Ubuntu
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

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Jan 11 2021
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    • CentOS
    • Hadoop
    • RedHat
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

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Jan 08 2021
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    • CentOS
    • Debian
    • Fedora
    • KVM
    • RedHat
    • Ubuntu
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

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Jan 08 2021
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    • CentOS
    • Debian
    • Fedora
    • KVM
    • RedHat
    • Ubuntu
How to Manage Virtual Machines in KVM Using Virt-Manager

The virt-manager application provides an easy-to-use interface that allows users to perform a wide range of tasks including creating guest machines and assigning critical virtual resources such as CPU, memory, and disk space. Users can also configure networking, pause, and resume the guest machines as well as monitor performance. As you get started, make sure

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Jan 06 2021
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    • CentOS
    • RedHat
How to Install Apache Kafka in CentOS/RHEL 7

Apache Kafka is a powerful messaging engine, which is widely used in BigData projects and the Data Analytics life cycle. It is an Open-source platform to build real-time data streaming pipelines. It is a distributed publish-subscribe platform with Reliability, Scalability, and Durability. We can have Kafka as a standalone or as a cluster. Kafka stores

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Jan 05 2021
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    • CentOS
    • Debian
    • KVM
    • RedHat
    • Ubuntu
Managing KVM Virtual Machines with Cockpit Web Console in Linux

Cockpit is a free and open-source front-end tool that provides administrative access to Linux systems. It allows system administrators to monitor, manage, and troubleshoot Linux servers. It provides an intuitive web interface that easy to navigate and keep track of the salient system features and resources. There’s a whole lot of things you can do

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Dec 15 2020
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    • CentOS
    • Hadoop
    • RedHat
How to Set Up High Availability for Namenode – Part 5

Hadoop has two core components which are HDFS and YARN. HDFS is for storing the Data, YARN is for processing the Data. HDFS is Hadoop Distributed File System, it has Namenode as Master Service and Datanode as Slave Service. Namenode is the critical component of Hadoop which is storing the metadata of data stored in

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Dec 15 2020
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    • CentOS
    • Databases
    • MariaDB
How to Install MariaDB on CentOS 8

MariaDB is an open-source, community-developed relational database management system. It is forked from MySQL and created and maintained by the developers who created MySQL. MariaDB is intended to be highly compatible with MySQL but new features have been added to MariaDB like new storage engines (Aria, ColumnStore, MyRocks). In this article, we will take a

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    • CentOS
    • CentOS Stream
How to Migrate CentOS 8 Installation to CentOS Stream

This week, Red Hat created a huge public outcry over its announcement regarding the future of CentOS. Red Hat, in a shocking move, is discontinuing CentOS Project in favor of the rolling release, CentOS Stream. The focus now shifts to CentOS Stream as the main CentOS distribution. In fact, at the end of 2021, curtains

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Dec 10 2020
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    • CentOS
    • PHP
    • RedHat
How to Install PHP 8 on CentOS/RHEL 8/7

PHP is a popular open-source server-side scripting language that is integral in developing dynamic webpages. PHP 8.0 is finally out and was released on November 26th, 2020. It promises lots of improvements and optimizations which are set to streamline how developers write and interact with PHP code. In this guide, you will learn how to

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