Re: Detecting a single open port

[Jack Grahl <mnvl16 () yahoo co uk>]

> Jack Grahl wrote:
> > It would be useful to have an nmap mode which stops as soon as it has detected 
> a single open port (per host).
>
> What about TCP Ping scan? nmap -sP -PT80,25,22... might not be enough for what 
> you want...

This is almost enough. I would like it to tell me the number of the port which is open, rather than just . I would also 
like it to use the portlist which I believe is built into nmap, and which optimizes finding an open port after as few 
tries as possible (and which includes all ports). Doing a SYN scan as a ping test at the moment without a portlist 
means just port 80 is scanned.

However, I see now that it is possible to do the above by scripting nmap to repeatedly do a TCP Ping to a single port, 
so perhaps it isn't a necessity.

Jack

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