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Articles on Trending Technologies
Technical articles with clear explanations and examples
Docker Image tags and how to use them
Docker Image tags are simple labels or aliases given to a Docker image before or after building to describe that particular image. Tags can represent the version of the project, features of the image, technologies used, or any descriptive identifier. They play a key role in the overall software development lifecycle by helping track different parts of your project and enabling effective version management. While pulling an image, you can specify the tag of the image you want. If not specified, Docker will pull the latest tagged image automatically. Let's explore the common ways tagging is used when working ...
Read More5 Best Linux Package Managers for Linux Newbies
Linux is a popular open-source operating system that has gained significant traction in recent years. It is known for its flexibility and security, making it a preferred choice for developers and enthusiasts alike. One of the essential features of Linux is its package manager, which is a tool that helps users manage software installation, removal, and updates. In this article, we will discuss the 5 best Linux package managers for Linux newbies. What is a Linux Package Manager? Before we dive into the list of package managers, let's understand what a package manager is. In simple terms, a ...
Read More5 Most Notable Open Source Centralized Log Management Tools
Centralized log management tools have become a crucial component in managing logs from various sources in modern software applications. These tools help to store, analyze and search large amounts of log data, making it easier for developers and administrators to identify and troubleshoot issues in their systems. In this article, we'll examine 5 most notable open source centralized log management tools and explore their features, benefits and limitations. Elasticsearch Elasticsearch is a highly popular open source search engine that's commonly used as a centralized log management tool. It's designed to store and index large amounts of data in ...
Read MoreHow to Install Anaconda on CentOS 8?
Anaconda is a widely used distribution of Python and R programming languages for data science, machine learning, and scientific computing. Installing Anaconda on CentOS 8 provides access to over 1, 500 packages and a comprehensive environment management system. This article will guide you through the complete process of installing and configuring Anaconda on CentOS 8, including environment management and package installation. Prerequisites Before installing Anaconda, ensure your CentOS 8 system is updated and has sufficient disk space (minimum 3GB recommended). sudo dnf update -y Step 1: Download Anaconda Installation Script Download the ...
Read MoreWhat are different types of CPU scheduling and the scheduling criteria?
The process scheduler is responsible for assigning processes to the CPU based on specific scheduling algorithms. It manages the order in which processes are executed to optimize system performance and resource utilization. CPU scheduling involves selecting which process should run next when the CPU becomes available. The scheduler uses various algorithms and policies to make these decisions, balancing factors like efficiency, fairness, and response time. Types of CPU Scheduling Algorithms CPU scheduling algorithms can be categorized into different types based on their approach − Preemptive vs Non-Preemptive Preemptive Scheduling Non-Preemptive Scheduling ...
Read MoreDifference between virtualization and containerization
Data centers consist of a large number of enterprise servers. Not all servers are active at the same time. In case traffic is directed mostly to a particular set of servers, those servers get busy. The other servers are less loaded, or they even turn totally inactive, thereby wasting power, maintenance costs, and other allied resources. With the changing times, businesses started looking for solutions to reduce overhead costs, enhance scalability, and standardize application deployment processes. They started considering the following two approaches to reduce costs: Virtualization − Virtualization is the technology that can simulate your physical ...
Read MoreRemove symbolic links file in Linux?
Symbolic links (also called soft links) are pointers to files or directories located elsewhere in the filesystem. They provide convenient shortcuts for accessing files without duplicating data. This tutorial demonstrates how to properly remove symbolic links in Linux without affecting the original files. Understanding the Setup Let's start with a directory containing files and their symbolic links. Here's our example structure − $ ls -l total 0 drwxr-xr-x 2 kent kent 40 Apr 26 23:48 aDir/ -rw-r--r-- 1 kent kent 0 Apr 26 23:46 aFile.txt lrwxrwxrwx 1 kent kent 4 Apr 26 23:48 dirLink ...
Read MoreHow to Record Linux Terminal Sessions?
Recording Linux terminal sessions is valuable for documenting commands, troubleshooting, sharing workflows, and creating tutorials. This article explores three popular methods to capture terminal activity: the built-in script command, the ttyrec/ttyplay combo, and the modern asciinema tool. Method 1: Using the script Command The script command is a built-in Linux utility that captures all terminal output to a plain text file. It records everything displayed in the terminal, including commands, output, and control characters. Basic Usage To start recording, run script followed by the output filename: $ script my_session.txt Script started, file is my_session.txt ...
Read MoreLinux last Command
The last command is a powerful Linux utility used to display a list of users who have previously logged in to the system. This command is especially useful for system administrators who need to track user activity and monitor login sessions on servers. The last command can display various information including login dates, session duration, and the terminal or device used to access the system. Syntax and Options The basic syntax of the last command is as follows − last [options] [username] Common options available with the last command include − ...
Read MoreUsing xz Compression in Linux
xz compression is a high-ratio data compression tool widely used in Linux environments to reduce file sizes, improve transfer speeds, and save storage space. Developed by Lasse Collin and based on the LZMA (Lempel-Ziv-Markov chain-Algorithm) compression algorithm, xz offers superior compression ratios compared to traditional tools like gzip and bzip2. How xz Compression Works The xz algorithm breaks input data into small blocks and compresses each block independently using the LZMA algorithm. The compressed blocks are then combined and stored in an output file with the .xz extension. LZMA uses a combination of dictionary-based and statistical compression techniques ...
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