nmap

[Tomasz Grobelny]

Może mi ktoś wytłumaczyć takie zachowanie nmapa:
$ nmap -sT 192.168.1.31

Starting Nmap 3.95 ( http://www.insecure.org/nmap/ ) at 2006-06-16 15:02 CEST
Interesting ports on 192.168.1.31:
(The 1665 ports scanned but not shown below are in state: closed)
PORT     STATE SERVICE
135/tcp  open  msrpc
139/tcp  open  netbios-ssn
445/tcp  open  microsoft-ds
1025/tcp open  NFS-or-IIS
1550/tcp open  3m-image-lm

Nmap finished: 1 IP address (1 host up) scanned in 0.167 seconds
$ sudo nmap -sT 192.168.1.31

Starting Nmap 3.95 ( http://www.insecure.org/nmap/ ) at 2006-06-16 15:02 CEST
Note: Host seems down. If it is really up, but blocking our ping probes, 
try -P0
Nmap finished: 1 IP address (0 hosts up) scanned in 0.260 seconds
$
? Dlaczego uruchomiony z uprawnieniami roota miałby w tym przypadku pokazywać 
co innego niż bez tych uprawnień?
-- 
Z poważaniem,
Tomasz Grobelny