System & Network Admin

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I have a bunch of files stored in various directories. They have been created at different times, but I need to check that their contents are the same. I cannot find how to do a diff on ALL files i...

Never rewrite code, use functions instead!

In the third part of the Bash Beginner Series, you'll learn to pass arguments to a bash shell script. You'll also learn about special bash shell variables.

Standard HTTP logs miss crucial details like request and response bodies, hindering debugging. Our article offers solutions for complete HTTP logging, ensuring you have all the necessary information for effective web management.

I did something recently I haven’t done in a long time: I recompiled the Linux kernel. There was a time when this was a common occurrence. You might want a feature that the default kernel did…

Steampipe has many plug-ins to convert internal app data to nice SQL tables. In this post, we look at how the Slack plug-in works.

I am working on a project where a user can upload webp images. I know how to convert webp images into jpg/png, but am stuck on how to identify whether the webp image is static (non-animated) or ani...

Learn different methods of mounting QCOW2 image files in a Linux environment.

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Aiming for a 10 year life-cycle for smartphones

Explore the history of RADIUS, its role in PPP, its integration with 802.1X for wireless LANs, and the use of EAP in enhancing network security.

How I've automated updating the bot list to block access to my site

Since Docker containers are little boxes of software, it can be easily copied and moved from computer to computer. Here we show you how to do it.

Here’s the latest installment in the series on working with LLMS: It was only after I deployed the function and used it in three different dashboards that the penny finally dropped. This had …

Introduction to TextFSM In this blog post, we will look at TextFSM, a tool that helps parse the raw data (semi-structured) we often get from network devices. If you've ever tried to use TextFSM documentation, you might know it can be a bit confusing. Therefore in this post, we'll go

In this article, I’ll guide you through the process of using ddrescue to recover data from a failing hard disk in simple, easy-to-follow steps.

Let's explore how to create a one-liner for fuzzy matching when navigating git worktrees.

TL;DR: I convert it from video to gif to video

The sudo command in Linux stands for “superuser do“, which allows a permitted user to execute a command as the superuser or another user.

A very common use case for a developer is to deal with multiple github accounts and hence multiple ssh keys. and this gets pretty painful quickly. I’ll show you how I manage multiple GitHub accounts easily by setting up different SSH keys and git configs for each project folder. This guide will help you avoid SSH key problems and make workflow for personal, work, and client projects much simpler.

A look at CIDR block ownership from a RIR-, country-, and organization level. Originally presented at RIPE88.

Quality of Service (QoS) in computer networks provides network engineers with the means to prioritize latency-sensitive traffic flows. It is increasingly essential as bandwidth consumption soars. Learn more about it here.

There's a lot more to printing from the Linux command line than the lp command. Check out some of the many available options.

I have just install Postgres 9.3 on Windows 7. The installation completed successfully. It has never asked me to provide the password for postgres user. The service postgresql-x64-9.3 is up and ru...

In this comprehensive step-by-step tutorial, we will guide you through the process of installing PostgreSQL on a Debian 12 system.