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Articles by Satish Kumar
Page 9 of 94
Growing an Existing RAID Array and Removing Failed Disks in Raid
Introduction RAID (Redundant Array of Independent Disks) is a technology used to store data across multiple hard drives instead of just one. RAID arrays offer a number of benefits over traditional single-disk storage, including improved performance and better data redundancy. Growing an Existing RAID Array Understanding RAID Levels and Their Limitations When it comes to creating a RAID array, it's important to understand the different levels of RAID and their limitations. There are several types of RAID, including RAID 0, 1, 5, 6, and 10. Each level offers unique benefits and drawbacks depending on your needs. For example, RAID ...
Read MoreGrep Regex A Complete Guide
Introduction When it comes to data processing and analysis, Grep Regex is a powerful tool for finding patterns in text. It is commonly used among developers, system administrators, and data analysts who need to search for specific strings or extract relevant information from large volumes of data. Grep stands for "Global Regular Expression Print" and refers to a command-line utility that searches for patterns in files or output streams. Regular Expressions (Regex) are a sequence of characters that define a pattern, which can be used to search or manipulate text. Getting Started with Grep Regex Installing Grep on Different Platforms ...
Read MoreGraylog - Industry Leading Log Management for Linux
Introduction In today's world, businesses and organizations generate massive amounts of data. One of the most important sources of data in a software-based organization is log files. These files contain valuable information about user behavior, system performance, security events, and more. However, managing and analyzing large volumes of log data can be challenging without the right tools and techniques. Definition of Graylog Graylog is an open-source log management tool designed to help organizations collect, process, and analyze large volumes of log data from various sources. It is built on top of Elasticsearch, MongoDB, and other open source technologies to provide ...
Read MoreGraphicsMagick - A Powerful Image Processing CLI Tool for Linux
Introduction In this day and age, images play an important role in our daily lives. We use them to communicate, express our creativity, and even conduct scientific research. However, with the increasing number of digital images being produced every day, there is a need for efficient tools to manage and process these images. This is where GraphicsMagick comes in. Getting Started with GraphicsMagick Installation Process on Linux Before using GraphicsMagick, you need to make sure it is installed on your Linux system. The installation process varies depending on the distribution you are using. For example, on Ubuntu and Debian-based systems, ...
Read MoreHow can I use wstring(s) in Linux APIs
Introduction In Linux programming, use of wide character strings is becoming increasingly common. Wide character strings, or wstrings, are a sequence of wide characters, each of which can represent a single Unicode character. This makes them particularly useful when working with text that includes characters from a wide range of languages, as well as text that includes special characters such as accents, symbols, and emojis. In this article, we will explore how to use wstrings in Linux APIs, with examples and explanations. What are wstrings and why use them? A wide character string, or wstring, is a sequence of wide ...
Read MoreHow To Work With Ansible Variables And Facts?
Ansible is a widely−used open−source tool that helps in automating software provisioning, configuration management, and application deployment. One of its powerful features is the ability to use variables and facts, which can simplify your playbooks and tasks, and allow you to design more dynamic, flexible, and reusable automation scripts. In this article, we'll dive into how to work with Ansible variables and facts, showcasing several examples and their corresponding output. Understanding Ansible Variables Variables in Ansible allow for the storage and manipulation of values, which can be utilized across multiple tasks or even different playbooks. Variables can be defined in ...
Read MoreHow to Work With GitHub Flavored Markdown in Linux?
Markdown is a popular lightweight markup language that allows users to write using an easy−to−read and easy−to−write plain text format, which can then be converted into HTML or other formats. In essence, it simplifies the process of structuring and formatting text. GitHub Flavored Markdown (GFM) is a variant of Markdown used by GitHub, incorporating additional features that help developers to document their work. In this article, we're going to delve into how to work with GitHub Flavored Markdown on a Linux system, with practical examples and their output. Basics of GitHub Flavored Markdown Let's start with the basics of GFM. ...
Read MoreHtop - An Interactive Process Viewer for Linux
Introduction System monitoring is an essential aspect of Linux administration, as it gives a clear overview of system resources usage, and the performances of various processes and applications running on a Linux system. Several tools provide this functionality, but Htop stands out due to its superior features and user-friendly interface. Htop is an interactive process viewer and system monitor that supersedes the older 'top' utility found in most Linux distributions. Htop offers a real−time, color−coded, and graphical representation of the processes running on a system, with CPU, memory, and swap usage displayed at the top. In this article, we delve ...
Read MoreInstall Apache, MySQL 8 or MariaDB 10 and PHP 7 on CentOS 7
Introduction CentOS 7 is a popular Linux distribution known for its stability and security. If you're looking to set up a web server on CentOS 7, you'll likely need to install Apache, MySQL or MariaDB, and PHP. In this comprehensive guide, we will walk you through the installation process of these components, along with examples and their outputs, to ensure a successful setup. Prerequisites Before we begin, make sure you have the following prerequisites in place − CentOS 7 installed on your server or virtual machine. Root access or sudo privileges to execute commands with administrative rights. Update the System ...
Read MoreInstall LXC (Linux Containers) in RHEL, Rocky & AlmaLinux
Introduction LXC, short for Linux Containers, is an operating system-level virtualization method that allows you to run multiple isolated Linux systems (containers) on a single host. It provides a lightweight and efficient alternative to traditional virtualization technologies. In this article, we will guide you through the process of installing LXC on RHEL, Rocky Linux, and AlmaLinux, three popular distributions known for their stability and security. Prerequisites Before proceeding with the installation, ensure that you have the following prerequisites − A supported version of RHEL, Rocky Linux, or AlmaLinux. Sudo or root access to the system. An internet connection. ...
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