Finding device IPs on your network regardless of subnet using netdiscover

Install package sudo apt install netdiscover -y run command sudo netdiscover -i ens18 -P -r 192.168.1.0/24 (ens18 = name of wired/wireless interface. To find it, use command: ip a show ) ref video: 'https://www.youtube.com/watch?v=yMSq7QzQcX4

QR codes

QR Codes: QR Code has 40 possible sizes, referred to as version 1, version 2, and so on through version 40. Version 1 (the smallest) is 21 x 21 modules, and version 40 (the largest) is 177 x 177 modules. The minimum quiet zone on all sides is the equivalent of four modules.(ref: https://barcodeguide.seagullscientific.com/content/Symbologies/QR_Code.htm) versions: …