Nmap O.S Detection Error

**skorpinok** · 05-11-2012, 12:00 AM

Hello,
When i run nmap O.S detection scan for windows xp within Pentest lab, i get this ' Too many fingerprints match this host to give specific OS details , i tried this in vmware workstation before it gave me same mesage , however the mac address seems right, i run backtrack 5r2/windows xp sp3 on virtual box. my network configuration: NAT & HOST ONLY for Windows XP & Backtrack 5R2.please suggest me how to solve this ? Thanks in advance.

scan details:

nmap -O 192.168.56.103

Starting Nmap 5.61TEST4 ( Nmap - Free Security Scanner For Network Exploration & Security Audits. ) at 2012-05-05 23:33 GST
Nmap scan report for 192.168.56.103
Host is up (0.00042s latency).
All 1000 scanned ports on 192.168.56.103 are filtered
MAC Address: 08:00:27:C9:67:41 (Cadmus Computer Systems)
Too many fingerprints match this host to give specific OS details
Network Distance: 1 hop

Regards.

**b0nd** · 05-11-2012, 10:00 AM

Nmap, in your case, could not find any port in OPEN state. Best to my memory, it needs at least 1 port in OPEN state and 1 port in CLOSED state to fingerprint the OS.
Check your settings for the box you are running NMap against, make some port available and scan again.
You might need to stop your firewall or allow services to listen on ports.

Cheers

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