System & Network Admin

This detailed guide shows how to install ffmpeg in Ubuntu and other Linux distributions. It also demonstrates some useful ffmpeg commands for practical usage.

A reverse proxy is a web server that can sit in front of another web server or a web service. It can encrypt outgoing traffic, act as a load balancer,...

SongRec is a free and open-source Shazam client for Linux, written in Rust.

Shazam is a great service for anyone who listens to music. But it's proprietary freeware and unavailable for Linux.

This (not so very) short video explains what TCP MSS clamping is and why we’re almost forced to use it on xDSL (PPPoE) and tunnel interfaces. TL&DW summary: because Internet-wide Path MTU Discovery rarely works.

Every time NGINX encounters an error as it attempts to process a client’s request, it returns an error. Each error includes an HTTP response and description.

Stream interactive Docker🐳 containers over the web in just a few clicks with Kasm Workspaces ⚡

Did you know that you can actually bypass firewalls with SSH Tunneling? Today, I am going to give you a smooth introduction to SSH Tunnelling and we shall later see its other use cases and client applications out there. SSH is basically a client-ser...

It is quite difficult to write correct shell scripts; you’re much better off just using Python.

For the longest time, I used LastPass as my password manager of choice. It was easy to use, I didn’t have to host anything, and hence I…

It’s really easy to create a DNS server that filters out malicious ads and links. The most popular option is to turn to Pi-Hole, but you will see for yourself that it is far from necessary. This tool requires some maintenance effort and increases the chances of being compromised by having a web environment open to the outside world. With just a server, VPS or Raspberry Pi, and 10 commands we will have our own DNS filter running with fantastic performance. Shall we start? 1 Download Maza Ad Blocking. curl -o maza https://raw.githubusercontent.com/tanrax/maza-ad-blocking/master/maza 2 Grants Maza enforcement permissions. chmod +x...

The Yggdrasil Network is a VPN software that aims to create a true mesh network. Learn what it is and how to install it in Linux today.

A recently discovered botnet under active development targets Linux systems, attempting to ensnare them into an army of bots ready to steal sensitive info, installing rootkits, creating reverse shells, and acting as web traffic proxies.

Lynis is a free and open-source security auditing tool and released as a GPL licensed project and is available for Linux and Unix-based Operating syst...

Gentoo Linux allows you to create your own custom Linux distribution. Learn how to install Gentoo on your computer today.

Images are the fundamental component of docker. In this guide, we will discuss what docker images are, how to build them, how to manage them, and how ...

In this tutorial Sergio Marin describes how to use Pantacor and Tailscale to turn your Raspberry Pi into a VPN gateway to secure your home network.

Have you ever wished you could travel back in time after deleting that all important customer report or installing a broken driver just before heading into the board meeting? Well, you better read on, because now you can! All it takes is to install Kali Linux version 2022.1 or newer with btrfs as file system and to enable snapshotting after installation.

Nessus allows you to check your server for a vulnerability. Here we show you how to use the Nessus vulnerability scanner on Linux.

NordVPN has been mentioned across the web by reputable bodies as a deserving representative of the top virtual private networks.