nmap scanning techniques

metallica1973 · 10-24-2005, 05:54 PM

How can one scan all of the ports on a firewall using nmap. I mean all the ports. Everytime I try and scan using nmap -sUT it only brings back certain status on certain ports and doesnt tell my a thing on all of the other ports. Also is there any websites other then nmap.org that has an decents nmap tutorial?

ilikejam · 10-24-2005, 07:22 PM

You might want to have a look at nmapfe, the graphical interface to nmap. You can specify any options you like, and the full nmap command is shown at the bottom.

Anyway, to scan all ports, you need to use the '-p-' option, e.g.

Code:

nmap -sT -O -p- 127.0.0.1

Dave

metallica1973 · 10-24-2005, 07:51 PM

what about externally! I want to run a scan from my work to my home computer!

ilikejam · 10-24-2005, 07:54 PM

You can scan any IP you like.

metallica1973 · 10-24-2005, 10:16 PM

thanks.