Knowledge Base

How to open or close ports in Linux.

Introduction: Effectively managing ports on your Linux system is crucial for both security and service accessibility. This comprehensive guide will provide a detailed walkthrough on opening and closing ports using the robust tools iptables and ufw. Understanding these methods is

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How to use ypdomainname command.

In the realm of Linux networking, the ypdomainname command plays a crucial role in the context of the Network Information Service (NIS). NIS, formerly known as Yellow Pages, is a distributed database service that facilitates the sharing of network configuration

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What is GPT (GUID Partition Table).

Introduction: Understanding the intricacies of disk partitioning is crucial for effective system management in Linux. The GPT (GUID Partition Table) has become the preferred choice for partitioning large-capacity storage devices. In this article, we’ll delve into the world of GPT

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How to understand disk management.

Introduction: Disk management is a critical aspect of maintaining a Linux system, whether you’re a seasoned administrator or a beginner. Understanding how to manage disks effectively ensures optimal performance, data integrity, and efficient storage utilization. In this article, we’ll delve

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How to switch users and run commands.

Switching users and running commands are fundamental tasks in the realm of computer systems and operating systems. Whether you are a system administrator, developer, or an everyday user, understanding how to switch between users and execute commands is crucial. In

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How to use atop command.

Monitoring system resources is crucial for maintaining optimal performance and troubleshooting issues. One powerful tool for this task is the atop command, which provides detailed insights into various system metrics. In this article, we will explore the usage of the

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How to list running processes.

What is a process? In Linux, a process is a running instance of a program. When you run a program, the operating system creates a process for that program to execute. Each process has its own unique process ID (PID)

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How to understand directory structure.

What is Directory structures? The directory structure, also known as the file system hierarchy, refers to the way in which files and folders are organized on a computer’s storage devices, such as hard drives or solid-state drives. It provides a

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How to understand difference between telnet and ssh

Introduction Telnet and SSH are both network protocols that enable users to access and interact with remote systems. However, there are significant differences between the two, particularly in terms of security. In this article, we’ll explore the distinctions between Telnet

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How to use telnet command.

What is telnet command: Telnet is a network protocol used on the Internet or local area networks to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection. The term "telnet" also refers to the command-line utility that

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How to use iotop command

What is iotop command: The iotop command is a tool used in Unix and Linux operating systems to monitor and display the disk I/O usage by processes and threads on the system. It stands for "input/output top" and provides a

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Haw to use smartctl command.

What is smartctl command: The smartctl command in Linux is a tool that allows you to monitor and control SMART (Self-Monitoring, Analysis, and Reporting Technology) enabled devices such as hard disk drives, solid-state drives, and some USB/eSATA hard disk enclosures.

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How to use iwconfig command

What is iwconfig command: The iwconfig command is a Linux/Unix command-line tool that is used to configure and display information about wireless network interfaces on a system. It is part of the Wireless Tools package and is commonly used to

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How to use ioping command.

What is ioping command: The ioping command is a tool used for measuring I/O (input/output) performance of a storage device, such as a hard drive or a solid-state drive (SSD). It is particularly useful for assessing the responsiveness and latency

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How to understand Data Collection in Linux Systems.

Linux systems generate a wealth of information about their activities, performance, and security events. Understanding how to collect and analyze these data points is crucial for system administrators and IT professionals. In this comprehensive guide, we will explore various methods

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How to understand Pipes.

Pipes in Linux are a powerful feature that facilitates communication between commands by allowing the output of one command to be used as the input for another. This seamless connection between processes enhances the flexibility and efficiency of command-line operations.

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How to use Emacs text editor.

How To Use Emacs Text Editor. Emacs is a powerful and extensible text editor that has been a favorite among developers and system administrators for decades. In this guide, we’ll explore the basics of using Emacs on a Linux system.

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How to understand Linux direction navigation.

How To Understand Linux Direction Navigation. Linux, as a powerful and versatile operating system, relies heavily on the concept of a hierarchical file system. Understanding how to navigate the directory tree is fundamental for efficient use of the command line

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