I train on vulnerable boxes and during my recon phase, I use nmap to collect info on open ports.
I use the command
nmap -sS [IP|URL] and no matter the machine, I get the result that port 554 - RTSP open.
But my mate used the same command and didn't get the same report (his results seems more accurate). Whether it's a Tryhackme machine or a Root-me one, I still get the result that port 554 is open.
I can't understand the scan. How can a basic training box have a RTSP port open?