Understanding the Fork Bomb :() :;: on Linux

Malware and bugs are to be expected when working on a system. If you are a Linux user then the most popular malware that user come across…

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How to use topgrade to upgrade packages on Linux

Topgrade is a command line utility useful for most Linux distributions like Debian, Arch Linux, Red Hat, etc. It constantly checks all installed tools and processes their…

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Check the listening ports on Linux

It is important to check network-related issues, especially during network troubleshooting. The first thing to check is which ports are active and listening or which application is…

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How to create a new file using Linux touch command

Linux includes a lot of useful commands to simplify the tasks. Linux commands can do anything, whether creating new directories or making changes in the system. You…

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Linux sysfs file system

In Linux, each directory has its own purpose for its existence. The same applies to the sysfs directory. The sysfs entries are used by the kernel to…

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Syslog Tutorial

“Syslog is a way to consolidate logs from different systems onto a remote syslog server. The syslog server consists of three key components. The first is a…

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The /proc file system

The /proc is a special file system in Linux that contains extensive information about the system hardware. In some cases it controls low-level hardware devices. The /proc…

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How to copy files on Linux

Copying the files is probably a daily routine for anyone using Linux. Often you want to copy a file across different directories. The easiest way to copy…

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SMTP Commands: Essential SMTP commands and response codes

The ASCII Simple Mail Transfer Protocol (SMTP) contains a set of commands and response codes. It works on a client-server interface and uses TCP port 25. Because…

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How to use scp (Secure Copy) command to transfer files

This tutorial explains how to use the scp (Secure Copy) command to transfer files between computers. The scp command is available on all Linux, Unix, and Windows…

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