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  • LVM Management in CentOS/Red Hat 7 Linux

    LVM (Logical Volume Manager) is the recommended partition method for CentOS/Red Hat 7 Linux. Specially, if we work on Mail Server, File Server, FTP Server, Web Proxy Server or any application where disk space changes frequently, the LVM partition is mandatory in this case. In my previous article, I discussed how to install CentOS 7.5 with LVM partitioning. If you are new here or CentOS 7 is not yet installed, I will suggest you to follow my previous article and install CentOS 7 with LVM partitioning and then continue this article. In this article, I will discuss how to manage LVM partitioning in CentOS/ Red Hat 7 Linux with the command line utility. Basic Components and Architecture of LVM Before going to start LVM management with command line tool, we should have basic knowledge on the basic LVM terms and architecture. The following three terms are the basic components of the LVM partitioning. Physical Volume: The underlying physical storage unit of an LVM is a block device such as a partition of a disk or the whole disk. To use the block device for an LVM logical volume, the device must be initialized as a physical volume (PV). Volume Groups: [...]

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    The Role of Computer Networking in Modern Surveillance and Security |   October 17, 2023

    In the present computerized age, computer networking is significant in ensuring modern surveillance and security frameworks are viable and productive. The progressions in innovation have prompted the improvement of innovative arrangements, for example, solar power cameras, that depend on computer networks to upgrade surveillance capacities. This article investigates the role of computer networking in modern surveillance and security frameworks, with a particular spotlight on integrating solar-powered cameras. What is Computer Networking? A computer network gathers interconnected hubs or computing gadgets that [...]

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    How to Block VPN Access with MikroTik Router |   May 14, 2019

    Sometimes system administrators create firewall rule to block unwanted websites. But VPN apps break these firewall rules and allow access to unwanted websites. For example, if Facebook is blocked with MikroTik Firewall and any expert user installs and enables VPN apps (such as OpenVPN, Hotspot Shield, ProtonVPN, NordVPN, PureVPN etc.), he can easily get access to Facebook. So, system administrators should also block popular VPN apps so that user cannot use those VPN servers. Blocking VPN apps is not so [...]

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    How to Install Discord on Ubuntu 24.04 |   July 28, 2024

    Discord is a popular communication platform designed for creating communities and bringing people together through text, voice, and video chat. Originally created for gamers, Discord has expanded to encompass a wide range of communities beyond gaming, including hobbyists, professionals, study groups, and more. There are several methods of installing Discord on Ubuntu 24.04. We will be covering the easiest method for demonstration which is from the snap store. Following are the step-by-step commands to install Discord on Ubuntu 24.04. Install [...]

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    MikroTik Firewall Basic Concept |   October 6, 2017

    MikroTik Firewall functions as a network security tool for preventing unauthorized access to networks as well as provides Network Address Translation functionality. So, a network administrator who is using MikroTik Router in his network cannot go a single day without MikroTik Firewall. Actually, the main duty of a MikroTik administrator is to maintain Firewall properly along with Bandwidth management after completing MikroTik Router basic configuration. So, a MikroTik administrator should have enough knowledge on MikroTik Firewall and so this article [...]

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    5 Factors That Affect the VPN Speed |   July 6, 2021

    So you have finally decided to use VPN services. While it’s a great option you must have your concerns. One of these must be the VPN slowing down at times. If that’s the case then it’s better to know the reasons and to explore the issue prior buying or using a free VPN service. Whether you own a fashion brand or a company that teaches coding to beginner kids, many companies use VPN to provide its employees with a closer [...]

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    MikroTik Router Web Proxy Configuration |   August 28, 2016

    A Proxy Server is usually placed between users and the internet so that the proxy server can track the activities of any user. Formerly, a proxy server was mainly used for caching the static content of any web server because the internet speed was too slow. So, users would get high speed for browsing as if they were browsing a local server. But nowadays the internet bandwidth has increased. So, the proxy server is usually not used for web caching [...]

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    Ubuntu Web Server Configuration with phpMyAdmin (LAMP Stack) |   July 12, 2021

    Ubuntu Server is one of the most popular open source operating systems that can be used in production without any hassle. In my previous article, I discussed how to install Ubuntu Server with LVM partition. I also discussed how to assign static IP address on Ubuntu Server interface with Netplan network management tool. Ubuntu web server is a popular service because web developers usually use Ubuntu Server for their development project. Besides development project, Ubuntu web server can also be [...]

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    How to Install VMware ESXi VMvisor on VMware Workstation |   December 28, 2020

    There is no doubt that VMware vSphere is the pioneer in virtualization world. Day by day IT infrastructure is converting to virtualization where VMware vSphere is providing more features than any other virtualization software. VMware ESXi is the foundation of VMware vSphere. VMware ESXi is a bare metal hypervisor. So, a physical server is required to install VMware ESXi. Physical servers are usually costly and beginners or researchers cannot always arrange such a high priced physical server to install ESXi [...]

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    Linux Text Editor |   September 7, 2017

    Everything is file in Linux operating system. So, anyone who wants to work with Linux operating system (specially, Red Hat or CentOS) must learn how to edit files in Linux operating system. Because, it is always prefer to avoid graphical user interface (GUI) for changing system configuration parameters in Linux operating system unlike Windows operating system.  You should be expert enough to edit any file in Red hat Linux operating system  otherwise you will face a lot of difficulty to [...]

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