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Articles by Satish Kumar
Page 18 of 94
An Easy Way to Hide Files and Directories in Linux
As a Linux user, you might want to hide some of your files and directories from prying eyes. Perhaps you have sensitive data that you don't want others to see, or maybe you just want to keep your work organized. Whatever your reasons may be, hiding files and directories in Linux is a straightforward process that you can accomplish using various methods. In this article, we'll explore an easy way to hide files and directories in Linux. What is Hiding Files and Directories? Hiding files and directories means making them invisible to regular users when using standard commands ...
Read MoreHow to Hack Your Own Linux System?
As a Linux user, you may have heard the term "hacking" in relation to cybersecurity and assumed it was only used by malicious attackers. However, ethical hacking (also called penetration testing) can be used as a means of improving your own system's security by identifying vulnerabilities and potential entry points that could allow others to gain unauthorized access. By testing your own Linux system, you can identify these weaknesses before cybercriminals have a chance to exploit them. Preparing Your System for Ethical Hacking Installing Necessary Tools and Software Before attempting to test your Linux system, it is ...
Read MoreHow to use tmux on Linux?
Tmux is a terminal multiplexing utility for Unix systems that provides an interface between several programs running simultaneously on one computer. It allows users to detach from terminal sessions without killing them and reattach later, making it invaluable for remote work and long-running tasks. Tmux operates through sessions, windows, and panes — sessions contain multiple windows, and windows can be split into multiple panes. All commands use a prefix key (default: Ctrl-b) followed by another key. Installation Install tmux on Debian-based Linux systems using the apt package manager − sudo apt-get update sudo apt-get install ...
Read MoreSearch Within Specific File Types Using grep on Linux
The grep command in Linux is a powerful text search utility that allows you to search for specific patterns within files. When working with large directory structures containing various file types, you can combine grep with specific options to search only within files of particular types, making your searches more targeted and efficient. Basic File Type Search with grep To search for a specific pattern within a specific file type, use the --include option with the -r (recursive) flag. This combination allows you to search through directories while filtering by file extension. grep -r 'example' --include='*.txt' ...
Read More10 Best and Most Popular Linux Desktop Environments
Linux is an open-source operating system that has gained massive popularity due to its flexibility and customization options. One of the most appealing features of Linux is the ability to choose from a wide range of desktop environments. A desktop environment is a collection of software applications, graphical components, and user interface elements that provide a complete graphical interface for interacting with the operating system. GNOME GNOME is one of the most widely-used desktop environments, known for its clean, modern design and focus on simplicity. It features the Activities Overview for application launching and window management, along with ...
Read MoreHow to Hide Apache Version Number and Other Sensitive Info?
Cybersecurity is a growing concern for businesses and individuals alike. One way to protect yourself against potential attacks is by hiding sensitive information such as your Apache version number. The Apache version number can be used by attackers to identify vulnerabilities in your system and launch targeted attacks. Additionally, default Apache settings may reveal sensitive information such as server operating system, installed modules, or applications, which can make it easier for hackers to gain unauthorized access. By hiding the Apache version number and other sensitive information, you can reduce the risk of cyberattacks. Understanding Apache Version Number and ...
Read MoreLoad Environment Variables in a Cron Job
When crontab runs a command, it doesn't read any environment variables from files like ~/.bashrc, ~/.bash_profile, etc. Because cron runs tasks from a non-interactive, non-login shell, it operates with a minimal environment. Some applications require specific environment variables to function correctly, making it necessary to load them explicitly in cron jobs. This article explores different methods for loading environment variables in crontab to ensure your scheduled tasks have access to the required configuration. Setting the BASH_ENV Variable We can set environment variables for shell scripts by using the BASH_ENV variable. When BASH_ENV is set, bash executes the ...
Read MoreRead the Source Code of Shell Commands on Linux
Reading the source code of shell commands on Linux helps developers understand how commands work internally and learn system programming techniques. Most Linux commands are compiled binaries, so you cannot simply view their source code with text editors like you would with script files. Understanding Command Types Before searching for source code, it's important to identify the type of command using the type command − type ls type cd type echo This will show whether a command is a binary executable, shell builtin, alias, or function. Only binary executables and scripts have readable source ...
Read More10 Best Arch Linux Based User Friendly Distributions
Arch Linux is known for its minimalistic approach and flexibility, offering a powerful environment for advanced users. However, for beginners, it can be challenging to set up and maintain. This is where Arch Linux-based distributions come into play, providing easier installation processes and pre-configured environments for a smoother user experience. In this article, we will explore the 10 best Arch Linux-based user-friendly distributions that combine the power of Arch with enhanced usability. 1. Manjaro Manjaro is one of the most popular Arch Linux-based distributions, providing a user-friendly experience without compromising on flexibility. It comes with a pre-configured ...
Read MoreHow to Hide Nginx Server Version in Linux?
Nginx is a popular open-source web server that is used by many companies and websites to serve their content efficiently. By default, Nginx displays the server version number in its response headers, which can be viewed by anyone with access to a web browser or other network analysis tools. While this information may seem harmless, it can actually pose significant risks to your website's security. Revealing your server version makes your website an easier target for attackers who can research known vulnerabilities specific to that version. Understanding the Security Risks Exploitation by Attackers One of the ...
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