So when i scan first 1000 ports like this:
pi@raspberrypi:~ $ sudo nmap -sV -O -Pn 10.10.10.3
nmap tells me all ports are filtered:
Nmap scan report for 10.10.10.3
Host is up (3.0s latency).
All 1000 scanned ports on 10.10.10.3 are filtered
Too many fingerprints match this host to give specific OS details
OS and Service detection performed. Please report any incorrect results at Nmap OS/Service Fingerprint and Correction Submission Page .
Nmap done: 1 IP address (1 host up) scanned in 163.16 seconds
But when i scan a single port:
pi@raspberrypi:~ $ sudo nmap -sV -O -Pn -p139 10.10.10.3
I get the usual:
Host is up.
PORT STATE SERVICE VERSION
139/tcp filtered netbios-ssn
Too many fingerprints match this host to give specific OS details
OS and Service detection performed. Please report any incorrect results at Nmap OS/Service Fingerprint and Correction Submission Page .
Nmap done: 1 IP address (1 host up) scanned in 15.49 seconds
Can anyone pls help me understand why this is happening? I am scanning lame from the beginner track… thnx alot 