SysAdmin

The dig command is frequently used by network and system administrators to perform DNS lookups. This tutorial shows you how to install dig on Windows using BIND.

The top command is a built-in Linux utility that contains useful information about your system's running processes and resource usage. Learn how to use the top command effectively.

The most common reasons for GRUB not booting into the OS are another OS's bootloader overwriting the GRUB's boot configuration, or the missing GRUB configuration files. Read this tutorial to learn how to resolve the Linux boot failure issues.

SFTP allows users to securely transfer files using SSH. This tutorial offers an overview of SFTP commands and options, explains how they work, and provides examples.

The cut command allows you to extract information from files or piped data. This tutorial shows how to use the cut command and its options.

SFTP is a network protocol that uses SSH to transfer files over the Internet securely. Learn more about it in this tutorial.

Docker containers tend to outperform other virtualization methods out of the box, but they can be further optimized to offer even better performance. This article discusses the reasons behind sub-optimal Docker performance in some scenarios and offers solutions you can apply to your system in order to optimize your Docker deployments.

The set command allows you to show or change the shell and environment variables in a Linux system. Follow this tutorial to learn how to use the set command and see practical examples.

The touch command creates new files. However, advanced options deal with file timestamps. Follow this tutorial to learn how to use touch in the command line through examples.

SFTP is a component of SSH that allows users to safely transfer data using the Internet. This tutorial goes over how SFTP works and what makes it the right choice of transfer protocols.