[root@centos ~]# nmap -O 220.181.5.31
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2008-01-05 20:08 CST
Warning: OS detection will be MUCH less reliable because we did not find at least 1 open and 1 closed TCP port
Interesting ports on 220.181.5.31:
Not shown: 1679 filtered ports
PORT STATE SERVICE
80/tcp open http
Device type: general purpose|broadband router
Running (JUST GUESSING) : Linux 2.4.X|2.5.X|2.6.X|2.3.X (97%), D-Link embedded (92%)
Aggressive OS guesses: Linux 2.4.0 - 2.5.20 (97%), Linux 2.4.7 - 2.6.11 (97%), Linux 2.6.0 - 2.6.11 (97%), Linux kernel 2.6.5 - 2.6.8 (97%), Linux 2.4.18 - 2.4.20 (95%), Linux 2.4.18 - 2.4.21 (x86) (95%), Linux 2.4.19 w/grsecurity patch (95%), Linux 2.4.22 - 2.6.8 (95%), Linux 2.4.26 (95%), Linux 2.6.0-test5 x86 (95%)
No exact OS matches for host (test conditions non-ideal).
Uptime 10.377 days (since Wed Dec 26 11:06:16 2007)
Nmap finished: 1 IP address (1 host up) scanned in 35.141 seconds
[root@centos ~]# nmap -A 220.181.5.31
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2008-01-05 20:10 CST
Warning: OS detection will be MUCH less reliable because we did not find at least 1 open and 1 closed TCP port
Interesting ports on 220.181.5.31:
Not shown: 1679 filtered ports
PORT STATE SERVICE VERSION
80/tcp open http Apache httpd 2.2.4 ((Unix) PHP/5.1.4)
Device type: general purpose|broadband router
Running (JUST GUESSING) : Linux 2.4.X|2.5.X|2.6.X|2.3.X (97%), D-Link embedded (92%)
Aggressive OS guesses: Linux 2.4.0 - 2.5.20 (97%), Linux 2.4.7 - 2.6.11 (97%), Linux 2.6.0 - 2.6.11 (97%), Linux kernel 2.6.5 - 2.6.8 (97%), Linux 2.4.18 - 2.4.20 (95%), Linux 2.4.18 - 2.4.21 (x86) (95%), Linux 2.4.19 w/grsecurity patch (95%), Linux 2.4.22 - 2.6.8 (95%), Linux 2.4.26 (95%), Linux 2.6.0-test5 x86 (95%)
No exact OS matches for host (test conditions non-ideal).
Uptime 10.378 days (since Wed Dec 26 11:06:16 2007)
Nmap finished: 1 IP address (1 host up) scanned in 40.663 seconds
