digital security and other possibly related topics

Do you want to parse CDP or LLDP information? Do you run Windows 11? As I recently found out it might not be as straight forward as expected.

Turns out Microsoft removed some useful capabilities from the built in network tools from Windows 11.

After extensive searching and trying several tools,...

Android and iOS have since some time supported sharing wifi credentials via a qr code that other users can then scan with their camera app and join the network hassle free.

You might have also seen them printed at hotels, bars and various venues and thought you want that too.

That is very handy...

So I wanted to move a bunch of esphome devices (a mix of esp8266 and esp32 boards) from one network to another, changing wifi ap/SSID and all network settings. And I wanted to do this over the air!

As there were quite a few nodes and these were used in various IoT settings, not all of them were co...

In other words, howto do mDNS on Edgerouter.

This is a dead horse that should have been beaten enough by now, but these are my notes to how I got it working.

VLAN 5 - trusted wifi
VLAN 20 - iot things

Chromecast uses mDNS to announce itself and since VLANS are routed this breaks but i...