SSH (Secure Shell) can be very unforgiving and throw up a plethora of errors for the slightest errors. One of the errors you might have encountered is the “kex_exchange_identification: read: connection reset by peer” error message. When you are in a hurry to establish a secure connection or a session, seeing this error can be very frustrating. In … [Read more...]

As we have iterated countless times in our previous Bash guides, Bash is a very powerful shell used in a lot of Unix based systems like Linux and macOS. One of the common Bash scripting tasks is string manipulation, including and particularly concatenating strings in Bash. In Bash, concatenate strings to make your text processing … [Read more...]

Linux users prefer status bars to have a quick look on key details like battery status and more. Waybar is a customizable status bar with options to customize as per the user’s needs. With a lot of in-built configuration options pre-loaded, Waybar is an easy choice for Linux users who prefer tailoring their status bars to suit their requirements. … [Read more...]

Vim, a powerful text editor, is a helpful tool in the Linux world with countless functionalities for text processing and manipulation. Two of its most useful functions are the finding and replacing commands. These commands boost the efficiency of users when they work on documents that contain lots of data. In this article, let us first learn how to … [Read more...]

So, you want to set up a proxy server on your Linux machine? That’s awesome! Proxy servers are like little gatekeepers for your internet traffic. They can do everything from speeding up your browsing to protecting your privacy. But don’t worry if you’re feeling a bit overwhelmed. This guide will walk you through the process … [Read more...]

Creators Aho, Weinberger, and Kernighan gave the Unix and Linux community a wonderful and powerful text-processing language. The AWK commands can be used either to simply scan a text pattern and also to process text. In real world conditions, AWK command can empower your scripting skills to master manipulation and analysis of text files. In this … [Read more...]

At Unixmen, we have been explaining each and every important Linux command in detail that would help the Linux community abundantly and one such crucial command is the tar command in Linux. Tar is short for “tape archive”. This command is used to create, maintain, modify, and extract all files in a Linux device that are archived in the tar format. … [Read more...]

TCPDump is an essential tool for security professionals, system administrators, and network administrators. It provides capabilities to capture and analyze network traffic. Here are the most common reasons why TCPDump is useful: Troubleshoot networks: TCPDump allows network administrators to capture network packets, which can be analyzed to … [Read more...]

When you fresh install Ubuntu 24.04 and create a user, that user is added to sudo group by default. Because you need sudo privileges to perform different administrative tasks. What about new users you create later after successfully installing Ubuntu? You need to manually add them to sudo group if you want that user to perform administrative … [Read more...]

What is DDRescue? DDRescue, also known as GNU ddrescue, is a powerful data recovery tool for Linux and other Unix-like operating systems. Unlike its predecessor ‘dd’, ddrescue is designed to efficiently cope with read errors, making it an invaluable tool for rescuing data from failing hard drives, corrupted USB sticks, or damaged … [Read more...]

What is VI? VI, short for “Visual Interface,” is a powerful text editor that has been ever present in Unix and Unix-like operating systems. The text editor was created by Bill Joy in 1976 and the software has become an essential tool for system administrators, developers, and power users. Its successor, VIM (VI Improved), offers even … [Read more...]

So, what is SED Replace? SED stands for Stream Editor. This is a powerful text processing tool available in Unix and Unix-like operating systems. The ‘replace’ functionality of sed is one of its most commonly used features. The function allows users to find and replace text patterns in files or input streams. SED replace is an … [Read more...]

What is DeDRM? So what exactly is DeDRM? It is short for “De-Digital Rights Management,” and refers to the process of removing digital rights management (DRM) protection from electronic files. DRM is a set of access control technologies used by publishers and copyright holders to restrict the use and distribution of digital content, … [Read more...]

Despite the numerous benefits and advantages, we get from the Internet and Information Technologies (IT), the connectivity between billions of web users across the globe also creates new challenges and threats. Different from wrongdoings in the real world, cybersecurity threats present a unique form of misconduct that hides the offender behind a … [Read more...]

A Quick Introduction The “sleep” command in bash scripting pauses the execution of a script for a specified amount of time. The primary use of the sleep command is to introduce delays between commands or tasks, and also to control the timing and sequence of operations. The syntax to invoke bash sleep command is simple: sleep . The number … [Read more...]

The grep command is a fairly simple command when used alone. But when it is used with regular expressions (RegEx), the grep command becomes a very powerful and useful tool for searching for key strings in Linux. Irrespective of the environment, understanding grep and RegEx will help you navigate files and directories. In this extensive guide, … [Read more...]