RPC scanning (-sR)
RPC scanning method always works in combination with several of port scan methods of Nmap. The idea of this is that try to determine the target ports are RPC ports or not. Decoys are not used in RPC scanning.
[FONT="]#nmap sR v 10.50.1.254[/FONT]
[FONT="]Starting nmap V. 2.54BETA30[/FONT]
[FONT="]Host vpn1-gw.lab.tct.hut.fi (10.50.1.254) appears to be up ... good.[/FONT]
[FONT="]Initiating Connect() Scan against vpn1-gw.lab.tct.hut.fi (10.50.1.254)[/FONT]
[FONT="]Adding open port 23/tcp[/FONT]
[FONT="]Adding open port 80/tcp[/FONT]
[FONT="]Adding open port 139/tcp[/FONT]
[FONT="]Adding open port 1723/tcp[/FONT]
[FONT="]Adding open port 24/tcp[/FONT]
[FONT="]Adding open port 515/tcp[/FONT]
[FONT="]The Connect() Scan took 1 second to scan 1549 ports.[/FONT]
[FONT="]Interesting ports on vpn1-gw.lab.tct.hut.fi (10.50.1.254):[/FONT]
[FONT="](The 1543 ports scanned but not shown below are in state: closed)[/FONT]
[FONT="]Port State Service (RPC)[/FONT]
[FONT="]23/tcp open telnet [/FONT]
[FONT="]24/tcp open priv-mail [/FONT]
[FONT="]80/tcp open http [/FONT]
[FONT="]139/tcp open netbios-ssn [/FONT]
[FONT="]515/tcp open printer [/FONT]
[FONT="]1723/tcp open pptp [/FONT]
[FONT="]Nmap run completed -- 1 IP address (1 host up) scanned in 1 second[/FONT]
RPC scanning method always works in combination with several of port scan methods of Nmap. The idea of this is that try to determine the target ports are RPC ports or not. Decoys are not used in RPC scanning.
[FONT="]#nmap sR v 10.50.1.254[/FONT]
[FONT="]Starting nmap V. 2.54BETA30[/FONT]
[FONT="]Host vpn1-gw.lab.tct.hut.fi (10.50.1.254) appears to be up ... good.[/FONT]
[FONT="]Initiating Connect() Scan against vpn1-gw.lab.tct.hut.fi (10.50.1.254)[/FONT]
[FONT="]Adding open port 23/tcp[/FONT]
[FONT="]Adding open port 80/tcp[/FONT]
[FONT="]Adding open port 139/tcp[/FONT]
[FONT="]Adding open port 1723/tcp[/FONT]
[FONT="]Adding open port 24/tcp[/FONT]
[FONT="]Adding open port 515/tcp[/FONT]
[FONT="]The Connect() Scan took 1 second to scan 1549 ports.[/FONT]
[FONT="]Interesting ports on vpn1-gw.lab.tct.hut.fi (10.50.1.254):[/FONT]
[FONT="](The 1543 ports scanned but not shown below are in state: closed)[/FONT]
[FONT="]Port State Service (RPC)[/FONT]
[FONT="]23/tcp open telnet [/FONT]
[FONT="]24/tcp open priv-mail [/FONT]
[FONT="]80/tcp open http [/FONT]
[FONT="]139/tcp open netbios-ssn [/FONT]
[FONT="]515/tcp open printer [/FONT]
[FONT="]1723/tcp open pptp [/FONT]
[FONT="]Nmap run completed -- 1 IP address (1 host up) scanned in 1 second[/FONT]