How to Check Disk Queue Length in Linux
The average disk queue length is the average number of read and write operations that were queued during a selected interval for the chosen device. It’s important to watch them …
How to Check TLS/SSL Expiration Date Using OpenSSL
TLS/SSL certificates are used for encrypting websites or web applications. They provide much-needed privacy and confidentiality to users who are interacting with the webserver via a browser or on command-line. …
How to Change UUID in Linux
It essentials to use UUID to mount storage device if the system uses many disks which are very regularly switched or moved. UUID is integrated with the filesystem and it …
How to List USB Devices in Linux
Nowadays, many computer peripherals such as webcams, mice, scanners, printers, hard drives, USB (Pendrive) now come as USB devices. Once these devices are connected to the Desktop or server it’s …
How to Generate UUID in Linux
UUID (Universally Unique identifier) is a 128-bit unique number standardized by the Open Software Foundation. This number is universally unique and really impossible for a user to guess. This tutorial shows …
Duf – Check Disk Usage on Linux
Written purely in Go programming language, duf ( Disk Usage Free utility) tool is a free and opensource command-line tool that is an alternative to the df command. It intuitively …
How to Find UUID in Linux
UUID (Universally Unique identifier) is a 128-bit unique number standardized by the Open Software Foundation. UUID helps to identify partitions in Linux systems. It is generated by using the libuuid …
How to Mount an exFAT Drive on Ubuntu and Other Linux
exFAT presents a proprietary filesystem that Microsoft created in 2006, which was first originally used in Windows operating systems and on various SD cards and USB drives. The main purpose …
How to Remove All Files from a Directory in Linux
In this tutorial, we are going to learn how to use rm command to remove all files safely from a directory. This document helps you delete non-hidden files, files with …
How to Create a Self-Signed SSL Certificate
SSL certificates are used to facilitate authentication and encryption on the internet. Normally, these certificates are issued by trusted third-party certificate authorities such as Let’s Encrypt. A self-signed certificate is …