I need a server, where users can connect themself and authenticate with
username / password. This authentication should be done preferably with html
/java, so that the users don't need any software to install
(there are more than 500 users around the world).
After authentication has been done, the authentication server opens
connections to the servers behind for this user, so the authenticated user
can connect to e.g. a html page "inside" of the network (put your email
reader in courier font to see):
-+ authentication +---+ server(s) ｦ
Note that several users can come over the same ip (if they come from the same
company and they are using private ip's from the inside), so authentication
over source ip is not possible.
Has anybody experience, how I could do this? I searched quite some time,
looking at firewalling, proxy servers, ...
Any hints are greatly appreciated,