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Home» Archives for Gilles Kaelin» Page 4
About Gilles Kaelin
Sometimes I do things, sometimes I don't. As a computer buff, I share tips on this site that have taken a lot of effort to find quickly.
The 5 most common IT mistakes in SMEs and how to avoid them
Posted in Linux/UNIX Computing Windows Server

The 5 most common IT mistakes in SMEs and how to avoid them

In supporting businesses, I've often seen some common mistakes. Below, I'll expand on them to help prevent other SMEs from making the same mistake. Allocate little...
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Debian 13 - Developing in PHP 8.0 and 8.4 on the same computer
Posted in Informatique Linux/UNIX

Debian 13 - Developing in PHP 8.0 and 8.4 on the same computer

I manage and maintain several web applications, but unfortunately some are still in CodeIgniter 3, which stops at PHP 8.0.30. To be able to…
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Develop directly in the /var/www folder under Linux without admin rights
Posted in Informatique Linux/UNIX

Develop directly in the /var/www folder under Linux without admin rights

Having recently upgraded to Debian 13 for my workstation, I continue to develop web applications with a local Apache server. The problem is that when editing files…
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KDE Plasma - Add an application manually to the launcher
Posted in Informatique Linux/UNIX

KDE Plasma - Add an application manually to the launcher

When I install a Debian 13 workstation, I usually use the KDE Plasma GUI. It's quite similar to a Windows interface (to avoid users getting lost),…
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OpenVPN vs WireGuard: What are the differences?
Posted in Uncategorized

OpenVPN vs WireGuard: What are the differences?

Recently, I discovered that the OpenVPN package on my OPNSense devices was no longer going to be updated starting with version 26.1, which means starting in January 2026. Instead, the team…
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Latest articles

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  • Debian 13 serial installer
  • Tradibot - A trading bot on Kucoin
  • Renaming a user in Linux
  • Securing your VPS
  • Run a Python script via Cron using virtual environments
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Debian 13 serial installer
Posted by By Gilles Kaelin July 17, 2026
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Tradibot - A trading bot on Kucoin
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Posted in Informatique Linux/UNIX
Renaming a user in Linux
Posted by By Gilles Kaelin April 13, 2026
Posted in Linux/UNIX Server Computing
Securing your VPS
Posted by By Gilles Kaelin February 25, 2026
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