Re: Testing firewall ports with parallel

[Gilles LAMIRAL]

Hi Divan,

nmap is also a very good candidate to scan many many hosts in parallel, by 
default,
which is still combinable with parallel when the command line length might be 
exhausted

Basic nmap command for a scan of port 443 only:

  nmap -p 443 cloud-ec.amp.cisco.com console.amp.cisco.com mgmt.amp.cisco.com 
...

You'll be very surprised how fast nmap is, a single host is
usually enough for thousands scans at one time.

This solution force you to group scan by port.

> Need help, am trying to test if servers we manage have the required
> firewall ports open. Have tried a few things but am not winning so far.
>
> This works, but is quite terrible and inefficient. Sure it could be
> simpler and better.


--
Au revoir,
Gilles Lamiral. France, Baulon (35580)
mob 06 19 22 03 54
tel 09 51 84 42 42