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Managing Disk Partition with the parted Tool in CentOS 7
As a system administrator, sometimes you may require to manage partitions of your CentOS/Red Hat Linux Operating System. Partition management is always a risky task. But there are some useful tools those are so helpful to manage CentOS/Red Hat Linux disk partition easily. In my previous article, I discussed how to manage CentOS/Red Hat 7 HDD partitions with the fdisk utility. The fdisk tool is only eligible to manage MBR partition table. But GPT partition table is now becoming more popular. On the other hand, the fdisk tool cannot resize (shrink or extend) a partition. To overcome these limitations, we can use another partition management tool named parted which can handle GPT partition table as well as can resize disk partitions. In this article, we will know how to create, delete, resize and rescue partitions in CentOS 7/Red Hat 7 Linux with the parted partition manager tool. The parted Utility The parted is open source and command line utility that is used to manage hard disk partitions. It supports multiple partition table formats including MS-DOS (MBR) and GPT. It is useful for creating space for new operating systems, reorganizing disk usage, and copying data to new hard disks. Installing parted [...]
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CentOS 7 Partition Management with fdisk Utility | February 11, 2019
CentOS or Red Hat Linux is a popular server operating system to the system administrators. Almost all the system admins or IT guys who play with mail server, file server, proxy server and so on are so known with CentOS or Red Hat Linux and cannot go a single day without this operating system. The guys who are also wish to be a system admin should be familiar with CentOS or Red Hat operating system. In my previous article, I [...]
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Ubuntu Server 20.04 Installation with LVM | May 28, 2021
Linux is a free and open source operating system developed by Linus Torvalds on September 17, 1991. It is mainly used as server environment. A lot of Linux distributions are present today. Among them, Ubuntu is one of the best stable Linux distributions. Ubuntu has both Desktop and Server distribution. Ubuntu Server is a high performance and stable enterprise Linux distribution and it can be easily used in production. Ubuntu Server has both community-support and well documentation. So, IT guys can use Ubuntu [...]
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Single IP NAT Strategy in MikroTik RouterOS 7 | September 29, 2015
MikroTik Router has a lot of features which help to customize network as our requirement. Sometimes, it may be our requirement that we need to allow internet access on per IP. Normally, when we apply masquerade NAT rule in our MikroTik Router, all private IPs will be masqueraded or a network block will be masqueraded. If we do normal masqurade and enable a DHCP Server in our network, we may face a lot of unauthorized access in our network. Because [...]
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User Management in Linux (Red Hat/CentOS) | September 28, 2017
User management is an important part of Linux (especially Red Hat Enterprise Linux) system administration. Linux users can be administrated using user or group administration GUI (Graphical User Interface) tool as well as through Red Hat/CentOS Linux command prompt. But I will always suggest you to do command line user administration as much as possible because in production GUI will not be provided always. Many people who are learning Linux administration do not know all features of user administration command [...]
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MikroTik Router First Time Startup and Setup using WebFig | April 17, 2018
I guess, you have purchased a new MikroTik Router or installed a new MikroTik RouterOS on PC and you are searching How to Start MikroTik Router First Time and How to Complete Basic RouterOS Configuration using WebFig (Web Interface) for running a basic network. If these are your concern, don’t worry, in this article I will show how to startup your MikroTik Router first time and complete RouterOS basic configuration using WebFig web interface so easily. There are three methods [...]
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MikroTik RouterOS User Authentication via RADIUS Server | November 19, 2017
MikroTik RouterOS has a strong local user database that is enough to manage a single MikroTik RouterOS user. But if your network has more than one MikroTik Routers, it is always better to use a RADIUS server to manage RouterOS user centrally. MikroTik User Manager RADIUS Server is a centralized user authentication and accounting application that gives the ISP Company or network administrator ability to manage not only RouterOS users but also PPP, Hotspot, DHCP and Wireless users. How to [...]
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How to Clear Google Chrome History | August 20, 2015
Google Chrome is one of the most popular web browsers to online users. It provides a lot of features which help to use this browser smoothly and securely. Google Chrome history is one of the useful features in Google Chrome which helpfully caches or remembers a lot of browsing information specially username and password or login credential of your important web account when you visit various websites in internet. If you are the only user of your desktop or laptop, [...]
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How to Create Gmail Account Successfully | August 17, 2015
Email is the heart of any business communication today. Not only enterprise companies but also our personal life’s activities are mostly depended on email. So, every person should have an email account today. There are many online companies (such as Gmail, Yahoo and Hotmail) who are providing free email services for any online users. Among these online companies, Gmail is the most popular free email service by Google with 15 GB free storage facility. Gmail has huge features to maintain [...]
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Computer Networking Basics | February 10, 2017
Computer networking is a buzzword to the present world. By the virtue of computer networking, the world has become just like a village. So, anyone of the world can communicate with any person of the world within seconds as if they are living in a village. Computer networking does not mean a single element. A lot of networking elements and protocol work behind a computer networking. So, the computer guys who are interested to learn how computer networking works should [...]
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