What operating system is the target host running based on the open ports shown above?

You have initiated an active operating system fingerprinting attempt with nmap against a target system:

[root@ceh NG]# /usr/local/bin/nmap -sT -O 10.0.0.1

Starting nmap 3.28 ( www.insecure.org/nmap/) at 2003-06-18 19:14 IDT

Interesting ports on 10.0.0.1:

(The 1628 ports scanned but not shown below are in state: closed)

Port State Service

21/tcp filtered ftp

22/tcp filtered ssh

25/tcp open smtp

80/tcp open http

135/tcp open loc-srv

139/tcp open netbios-ssn

389/tcp open LDAP

443/tcp open https

465/tcp open smtps

1029/tcp open ms-lsa

1433/tcp open ms-sql-s

2301/tcp open compaqdiag

5555/tcp open freeciv

5800/tcp open vnc-http

5900/tcp open vnc

6000/tcp filtered X11

Remote operating system guess: Windows XP, Windows 2000, NT4 or 95/98/98SE Nmap run completed — 1 IP address (1 host up) scanned in 3.334 seconds

Using its fingerprinting tests nmap is unable to distinguish between different groups of Microsoft based operating systems – Windows XP, Windows 2000, NT4 or 95/98/98SE.

What operating system is the target host running based on the open ports shown above?

You have initiated an active operating system fingerprinting attempt with nmap against a target system:

[root@ceh NG]# /usr/local/bin/nmap -sT -O 10.0.0.1

Starting nmap 3.28 ( www.insecure.org/nmap/) at 2003-06-18 19:14 IDT

Interesting ports on 10.0.0.1:

(The 1628 ports scanned but not shown below are in state: closed)

Port State Service

21/tcp filtered ftp

22/tcp filtered ssh

25/tcp open smtp

80/tcp open http

135/tcp open loc-srv

139/tcp open netbios-ssn

389/tcp open LDAP

443/tcp open https

465/tcp open smtps

1029/tcp open ms-lsa

1433/tcp open ms-sql-s

2301/tcp open compaqdiag

5555/tcp open freeciv

5800/tcp open vnc-http

5900/tcp open vnc

6000/tcp filtered X11

Remote operating system guess: Windows XP, Windows 2000, NT4 or 95/98/98SE Nmap run completed — 1 IP address (1 host up) scanned in 3.334 seconds

Using its fingerprinting tests nmap is unable to distinguish between different groups of Microsoft based operating systems – Windows XP, Windows 2000, NT4 or 95/98/98SE.

What operating system is the target host running based on the open ports shown above?

A.
Windows XP

B.
Windows 98 SE

C.
Windows NT4 Server

D.
Windows 2000 Server

Explanation:
The system is reachable as an active directory domain controller (port 389, LDAP)



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