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Articles by Satish Kumar
Page 8 of 94
Bash Terminal Redirect to another Terminal
The Bash terminal is a powerful tool for interacting with a computer's operating system. One essential feature of Bash is the ability to redirect output from one terminal to another. This can be useful in many situations, such as monitoring command output in real-time or sending messages to another user's terminal session. Understanding Bash Terminal Redirection Bash terminal redirection allows you to redirect the output of commands or scripts to files or other terminal windows using special symbols: > − Redirects output to a file (overwrites existing content) >> − Appends output to a file | ...
Read MoreA Brief Introduction to \'Makefiles\' in Open Source Software Development
As an open-source developer, you might have come across the term Makefile while exploring different projects. A Makefile is a script that automates the build process for software projects, containing instructions that specify how to compile, link, and test code. This article provides a brief introduction to Makefiles, covering what they are, why they are important, and how to create one. What is a Makefile? In simple terms, a Makefile is a script that automates the build process for a software project. It contains a list of instructions that specify how to compile, link, and test code. Makefiles ...
Read MoreA Career in Linux is What You Should Be Pursuing In 2023
Are you looking for a career that's in demand and offers great opportunities for growth? Look no further than a career in Linux! In 2023, Linux is more important than ever, and pursuing a career in this field could be key to unlocking a world of opportunities. What is Linux, and Why is it Important? Linux is an open-source operating system that powers a vast array of devices, from smartphones and tablets to servers and supercomputers. It was first developed in the early 1990s by Linus Torvalds, and since then, it has become the backbone of the internet, ...
Read MoreAnsible Check if a File Exists
Ansible is an automation tool that helps in configuring and managing servers, networking devices, and other infrastructure. It simplifies the process of automation by providing a high-level language to describe infrastructure as code. In this article, we will discuss how to check if a file exists using Ansible. Why Check if a File Exists in Ansible? Checking if a file exists is an important task when automating infrastructure. It allows you to determine whether or not a file is present on a system, which can be useful when creating idempotent tasks. Idempotence means that a task can be ...
Read MoreHow to Fix SambaCry Vulnerability (CVE-2017-7494) in Linux Systems?
The SambaCry vulnerability (CVE-2017-7494) is a critical remote code execution flaw that affects Samba versions 3.5.0 and later. This vulnerability allows attackers to execute arbitrary code with root privileges on vulnerable Linux systems by exploiting a buffer overflow in the SMB/CIFS protocol implementation. Understanding Samba and SambaCry Vulnerability What is Samba? Samba is an open-source software suite that provides file and print sharing services between Linux/Unix servers and Windows clients. It implements the Server Message Block (SMB) protocol, enabling seamless interoperability across different operating systems in networked environments. How SambaCry Works The SambaCry vulnerability exploits ...
Read MoreMechanism of clipboard of xwindow
X Window System, commonly known as X11 or simply X, is a windowing system for bitmap displays that was initially designed in the mid-1980s to run on Unix-like operating systems. X Window System has a fundamental concept of a clipboard mechanism, which is used to transfer data between applications through selection buffers managed by the X server. What is a Clipboard? A clipboard is a temporary storage area in memory that allows you to copy and paste text, images, or other data between applications. In X Window System, the clipboard operates differently from traditional systems by using selection ...
Read MoreA Command Line Web Browsing with Lynx and Links Tools
In today's world, we rely heavily on graphical user interfaces (GUI) for web browsing, but there are still situations where using a command-line web browser is necessary. Command-line web browsers are valuable in low-resource environments, remote servers, or when working exclusively through terminal interfaces. Lynx and Links are two of the most popular command-line web browsers that offer a fast and efficient way to browse the web through the terminal. What is Lynx? Lynx is a text-based web browser that allows users to browse the web in a terminal environment. Developed in 1992, it has remained popular due ...
Read MoreApache 403 Forbidden Reasons and How to Fix It
If you have ever tried to access a website, but received a 403 Forbidden error message, you know how frustrating it can be. This error message means that you are not allowed to access the requested resource. In this article, we will explain what Apache 403 Forbidden errors are, what causes them, and how to fix them. What is an Apache 403 Forbidden Error? An Apache 403 Forbidden error occurs when the server receives a request for a resource, but the server refuses to fulfill the request. This error message is usually displayed in the web browser and ...
Read MoreHow to Fix \"SSH Failed Permission Denied (publickey, gssapi-keyex, gssapi-with-mic)\"?
Secure Shell (SSH) is a network protocol that allows secure communication between two remote computers. It is widely used for system administration, file transfer, and other secure network services. However, one of the most frustrating errors users encounter is the "Permission Denied" error with various authentication methods. This error typically appears as Permission denied (publickey, gssapi-keyex, gssapi-with-mic) and indicates that the SSH client failed to authenticate using any of the specified methods. Understanding and fixing these authentication failures is crucial for maintaining secure remote access. Understanding SSH Authentication Methods SSH supports multiple authentication methods, each serving different ...
Read MoreApache Hadoop Architecture Explained (With Diagrams)
Apache Hadoop is a popular big data framework that allows organizations to store, process, and analyze vast amounts of data. The architecture of Hadoop is designed to handle large amounts of data by using distributed storage and processing. In this article, we will explain the architecture of Apache Hadoop and its various components with diagrams. Introduction to Apache Hadoop Apache Hadoop is an open-source software framework used for storing and processing large amounts of data in a distributed environment. It was created by Doug Cutting and Mike Cafarella in 2006 and is currently maintained by the Apache Software ...
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