Nmap Development: Re: missing nmap features

[Fyodor <fyodor () insecure org>]

On Thu, Mar 13, 2003 at 09:43:47PM +0200, insecure () mail od ua wrote:
> But it does a reverse DNS lookup for every host, which
> is slower than scan itself and it does not try to scan
> several hosts in parallel.
You're in luck -- Nmap has an undocumented "turbo mode" which scans
many hosts in parallel for a single TCP port:

nmap -sS -PS443 -p 443 [ networks ]

Of course you replace both instances of 443 above with any other
single port you wish to scan.  Most Normal nmap options will work in
combination with this.

> but can nmap acquire at least a little nice -n option
> to disable reverse DNS? ;) ;)
Um ... Nmap alread HAS "a little nice -n option to disable reverse
DNS" :).  Adding it to the form above will indeed make things go much
faster.

Cheers,
Fyodor

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