Io e il mio amico abbiamo accesso a un ambiente privato e usiamo Nmap per analizzare un dominio e un www.
Ottengo il seguente risultato:
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INCORRECT SCANNING
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nmap -sS -v www.site.com.br
Starting Nmap 7.31 ( https://nmap.org ) at 2017-01-02 13:45 EST
Initiating Ping Scan at 13:45
Scanning www.site.com.br (173.x.x.20) [4 ports]
Completed Ping Scan at 13:45, 0.20s elapsed (1 total hosts)
Initiating Parallel DNS resolution of 1 host. at 13:45
Completed Parallel DNS resolution of 1 host. at 13:45, 0.45s elapsed
Initiating SYN Stealth Scan at 13:45
Scanning www.site.com.br (173.x.x.20) [1000 ports]
Discovered open port 22/tcp on 173.x.x.20
Discovered open port 53/tcp on 173.x.x.20
Discovered open port 21/tcp on 173.x.x.20
Discovered open port 554/tcp on 173.x.x.20
Discovered open port 111/tcp on 173.x.x.20
Discovered open port 80/tcp on 173.x.x.20
Discovered open port 7070/tcp on 173.x.x.20
Completed SYN Stealth Scan at 13:45, 6.73s elapsed (1000 total ports)
Nmap scan report for www.site.com.br (173.x.x.20)
Host is up (0.17s latency).
rDNS record for 173.x.x.20: 14.5d.2d.static.xlhost.com
Not shown: 990 closed ports
PORT STATE SERVICE
19/tcp filtered chargen
21/tcp open ftp
22/tcp open ssh
25/tcp filtered smtp
53/tcp open domain
80/tcp open http
111/tcp open rpcbind
554/tcp open rtsp
5555/tcp filtered freeciv
7070/tcp open realserver
Read data files from: /usr/bin/../share/nmap
Nmap done: 1 IP address (1 host up) scanned in 7.72 seconds
Raw packets sent: 1034 (45.472KB) | Rcvd: 1022 (40.896KB)
Ma il mio amico ha questo:
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CORRECT SCANNING
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nmap -sS -v www.site.com.br
Starting Nmap 7.31 ( https://nmap.org ) at 2017-01-02 15:26 BRT
Initiating Ping Scan at 15:26
Scanning www.site.com.br (173.x.x.20) [4 ports]
Completed Ping Scan at 15:26, 0.21s elapsed (1 total hosts)
Initiating Parallel DNS resolution of 1 host. at 15:26
Completed Parallel DNS resolution of 1 host. at 15:26, 0.01s elapsed
Initiating SYN Stealth Scan at 15:26
Scanning www.site.com.br (173.x.x.20) [1000 ports]
Discovered open port 80/tcp on 173.x.x.20
Discovered open port 111/tcp on 173.x.x.20
Discovered open port 22/tcp on 173.x.x.20
Discovered open port 21/tcp on 173.x.x.20
Discovered open port 53/tcp on 173.x.x.20
Completed SYN Stealth Scan at 15:26, 6.58s elapsed (1000 total ports)
Nmap scan report for www.site.com.br (173.x.x.20)
Host is up (0.17s latency).
rDNS record for 173.x.x.20: 14.x.x.x.x.com
Not shown: 991 closed ports
PORT STATE SERVICE
21/tcp open ftp
22/tcp open ssh
25/tcp filtered smtp
53/tcp open domain
80/tcp open http
111/tcp open rpcbind
139/tcp filtered netbios-ssn
445/tcp filtered microsoft-ds
2301/tcp filtered compaqdiag
I miei risultati non hanno senso, e il suo è corretto. Perché otteniamo risultati diversi e come posso risolverlo?