Here’s an nmap snippet for scanning for hidden cctv / ip camera in the network
nmap -sV --script=http-enum,http-title,rtsp-url-brute -p 80,443,554,8000 <ip range>
Or you can write as :
sudo nmap -sV --script=http-enum,http-title,rtsp-url-brute -p 80,443,554,8000 192.168.0.0/24
Make sure you have permission to scan on the network!