invictus@victim_server:~$ nmap -T4 -0 10.10.0.0/24
TCP/IP fingerprinting (for OS scan) xxxxxxx xxxxxx xxxxxxxxx. QUITTING!
Obviously, it is not going through. What is the issue here?
A.
OS Scan requires root privileges
B.
The nmap syntax is wrong.
C.
The outgoing TCP/IP fingerprinting is blocked by the host firewall
D.
This is a common behavior for a corrupted nmap application
Answer: B The NMAP syntax is wrong.
Option for OS scan is -O (the letter) not -0 (the number).
Unless it’s actually the letter ‘O’, then A is correct.
Nmap will not quit with -0
nmap will quit with -O.
A