System & Network Admin

In this article, we will show how to lock a user or root account after a specifiable number of failed login attempts in CentOS, RHEL and Fedora distributions.

There are plenty of icon sets for Linux to radically change your desktop's looks. Let's see some beautiful Linux icon themes to upgrade your OS's looks.

Six months ago, I advocated for everyone to stop using .env files. Since then, I’ve published more articles on this arena and have learned…

This tutorial will walk you through installing and configuring Snort IDS on a Linux server to improve the security of your network.

Please, please, please do not actually install XP and use it. But if you must…

TL;DR – WebVM is a Linux-like virtual machine running fully client-side in the browser. It is based on CheerpX: a x86 execution engine in WebAssembly by Leaning Technologies. With today’s update, you can deploy your own version of WebVM by simply forking the repo on GitHub and editing the included Dockerfile. A GitHub Actions workflow...

Bernd Schubert led a session at the 2023 Linux Storage, Filesystem, Memory-Management and BPF Summit on the intersection of FUSE and io_uring. He works for DDN Storage, which is using FUSE for two network-storage products; he has found FUSE to be a bottleneck for those filesystems. That could perhaps be improved by using io_uring, which is something he has been working on and wanted to discuss.

On most IPv6-enabled networks, network addresses are distributed via stateless address autoconfiguration (SLAAC).

Configure NGINX as a reverse proxy for HTTP and other protocols, with support for modifying request headers and fine-tuned buffering of responses.

Basic username and password authentication is an easy and simple way to secure administrative panels and backend services. Nginx can be configured to protect certain areas of your website, or even used as a reverse proxy to secure other services.

Nginx is one of the most popular web servers in the world. In this guide, we will discuss how Nginx selects the server and location block that will handle a given client’s request. We will go over the algorithm in place, as well as the directives and options you can use to modify the selection process.

How to add HTTP header (-H, --HEAD) or multiplie headers in cURL. How to set authorization header. Examples.

Learn to make an HTTPS connection using curl.

In this tutorial learn How to Find your IP address using a Linux OS. Simple guide for checking internal and external IP addresses on a Linux system.

Discover the differences between VPS and VPN, as we demystify these words and guide you in choosing the right solution for your online needs.

Wayland has been around for a while and is hailed as the much better alternative to X11. Learn what Wayland is, how it works, and how to use it

Everything you need to know about Prometheus Alertmanager - why it's important, how it's designed, how to configure it, why we at groundcover love Prometheus Alertmanager so much, and how it has made our lives easier.

Manage your server without fighting the terminal. Server control panel based on Docker.

No one can deny that debugging helps us a lot while solving problems. One major developer experience issue today with kubernetes is that it is hard to debug a problem. Today, we will play with a specific tool that will help us do that

How the actual build look like. TL;DR Link to heading This is not a guide on how-to install and configure Linux, but a list of the components I used to build my personal Linux workstation, to avoid any compatibility issue and to exploit the best in terms of performance and stability. For who’s asking, I am using Arch Linux as my daily driver and it is configured through the Ansible playbook i made.

Fellow DietPi enthusiasts, I have long searched for a newbie-friendly solution, but, alas, I failed miserably… Thus, I have come here to humbly seek your help in my quest to achieve this: Goals Running vaultwarden on HTTPS with a cert from letsencrypt (no more annoying warnings!) No (additional) port forwarding for a reverse proxy solution (as I am no tech guru, I prefer to keep my attack surface minimal) Current state RPi4 @ DietPi 7.2.3 The default lighttpd web server A working DDNS ...