> I would like to find a way to prevent users from simultaniously > logging in from different computers but using the same username and > password.
How do you define "different computers"? A remote IP address, possibly cookies, and possibly JavaScript are about all you have to work with to determine "different computers" which could be any of the following scenarios: Are two browsers (e.g. FireFox and IE) considered "different computers"? What about two users of terminal-services on the same OS? How about if they have two OSes running in separate VMs on the same hardware? Or if they're two computers behind the same NAT/router returning the same IP address? Or what should happen if they're behind a load-balancing proxy that can return multiple outward facing IP addresses for the same computer? Is each IP address a different computer? Or their dialup hangs up on them and when they call back they get a new IP address...or a cellular data service where their IP changes as they move from cell to cell? If you base your decision based on the cookie/token, what happens if their machine crashes? Do they have to wait for some arbitrary timeout before the app will let them back in? It might be possible to have some AJAXy polling portion that pings your server every N seconds to update a "hey, this user is still not dead" timestamp, but it creates a lot of traffic/noise and isn't guaranteed in the event that they disable JavaScript (or active-x on Win32) It's a complicated issue, and anything close to a solution requires a tighter definition of the business-rules driving the prescription...if it's even a "solvable" problem... -tkc --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
