On Sun, Jul 17, 2011 at 4:04 AM, Emile van Sebille <em...@fenx.com> wrote: > On 7/16/2011 9:52 AM Chris Angelico said... >> >> I'd say there's several imperfect options, and no perfect ones. >> >> 1) DHCP, which hosts may or may not be using. >> 2) DNS - look up a list of the hosts within a (sub)domain. >> 3) Send out a broadcast ping and hope they all respond. > > Or try nmap and parse it's results.
Or that, which has the same risk as #3 - basically it means doing some network traffic to find what systems are around. It's still imperfect, because it's likely that a down server will simply not be in the list - someone could go through all the hosts on the list, ping them all, and think that everything's fine. But yes, nmap is more reliable than a broadcast ping, for what it's worth. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
