Hi Gilles, Great. Thanks for the useful tip.
Gilles LAMIRAL <[email protected]> writes: > 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. -- Divan
