0
votes
2answers
73 views

Does Nmap requires a closed TCP port to do OS fingerprinting?

I was checking the security of a server by running Nmap. Last time it gives me the following results, indicating that OS could not be fingerprinted: PORT STATE SERVICE VERSION 21/tcp ...
3
votes
2answers
1k views

OS Fingerprinting for Android

Are traditional OS-fingerprinting techniques effective in identifying Android smartphones (OS version) on a network. From my research I found most Android network mappers can be only run from Android ...
2
votes
5answers
645 views

OS fingerprinting: can I rely on the results?

Using nmap -O www.example.com I get: Running (JUST GUESSING): Microsoft Windows 7|2008 (90%) So I can say the target site is running Windows. Using xprobe2 -v www.example.com, I'm just astonished ...
1
vote
3answers
882 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 ...