NMAP

TCP-SYN (synchronize TCP) where this scan just sends one packet with SYN flag. No need to do the three-way handshake as it just waits for either RST (closed) or SYN-ACK (open) flag.

Enable OS detection (-O), version detection (-sV), script scanning, and traceroute (--traceroute)

Fast mode - Scan fewer ports than the default scan

Set timing template (higher is faster)