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1 vote
0 answers
104 views

What tool can I use to verify the output from Nmap? [closed]

With OS detection enabled I noticed that the device fingerprints is running something entirely wrong. Is there another tool that I can use that can verify since something looks odd?
maye's user avatar
  • 11
0 votes
0 answers
270 views

Using nmap to detect realtime operating system

I would like to understand whether nmap can be used to detect the operating system type for realtime OS (Vxworks, threadx, free RTOS, etc.). Has anyone done similar work before? Or if you have any ...
j2eeuser's user avatar
0 votes
1 answer
974 views

Block OS fingerprinting without using iptables?

I have a Linux machine connected to a Windows 98 PC on port 104. Now I want to block the OS fingerprinting using nmap for the windows 98 PC. I tried using iptables (blocking that particular port) but ...
Megja's user avatar
  • 1
3 votes
1 answer
748 views

NMAP Scan Returns Odd OS Detection [closed]

I am new to NMAP but I was using it to troubleshoot some issues I have been having. I ran a scan on a device and I know the device runs some sort of Linux or Ubuntu OS and I was attempting to figure ...
vector's user avatar
  • 33
8 votes
2 answers
4k views

How nmap guesses the operating system?

nmap has the capability to guess the operating system with the option -O. I was highly surprised that it can find the correct kernel or service pack. * How nmap guesses the operating system? * What ...
Jon's user avatar
  • 513
2 votes
3 answers
8k views

How to find the OS of the target machine

I am new to this field. Currently I am using Linux OS and my question is how can I find the OS of another machine to which I do not have a direct access. I am interested in any possibilities which ...
Alex's user avatar
  • 422