A DHCP server is one of the most critical services in any network. If DHCP becomes unavailable, devices may no longer receive IP addresses, causing users and services to lose network connectivity. For that reason,…
ICMP stands for Internet Control Message Protocol.It is defined as part of the IP protocol suite and operates at the network layer. Important distinction: ICMP does not transport application data.It transports control and error reporting…
Installing OPNsense on 10-Gbit firewall hardware with an external DHCP server OPNsense is a FreeBSD-based firewall and routing platform aimed at professional and semi-professional network environments. This article describes a clean bare-metal installation of OPNsense…
Why I Chose WireGuard VPN and Why It Actually Makes Sense Since I work remotely I needed a solution so that I could use my Belgian IP address to identify myself towards the VPN of…
When you want to understand how fast your local network really is, internet speed tests are almost useless. They measure the connection to the outside world, not the performance between your own machines. To get…
Instead of buying a standard router, I decided to build my own DHCP service from scratch so that every network function runs on its own dedicated machine. It was both a technical challenge and an…
In complex automation systems, problems rarely announce themselves clearly. A value arrives too late. A subscription behaves differently than expected. A client reconnects more often than it should. At that point logs are often not…