Tutorials

All IT tutorials: systems, networking, virtualization, security.

659 articles
Nginx 22 May 2024 ⏱ 2 min

Nginx: compile an external module

In this tutorial, I will explain how to compile an external module for Nginx in order to add additional functionality to the web server. To illustrate this tutorial, I …

Docker 01 May 2024 ⏱ 2 min

Docker: change default IP address ranges

In this tutorial, I will explain how to change Docker’s default address range. By default, Docker uses class “B” private addresses from 172.17 to 172.32. For each “stack” …

Linux 24 Apr 2024 ⏱ 4 min

Ubuntu: add an LVM disk and volume

In this tutorial, I will explain how to add an additional disk to an Ubuntu machine and create a new LMV volume for this disk. To explain this tutorial, I will start from …

GPO 17 Apr 2024 ⏱ 2 min

GPO: disable automatic Windows Update updates

In this tutorial, I will explain how to configure a Group Policy (GPO) to disable updates through Windows Update. It is not recommended to disable Windows updates if you …