Login One! Premium Edition for Joomla 1.6, 1.7 and 2.5
For personal, one-man business and non-profit websites only. Limited support.
Current version 1.8.0, compatible up to Joomla! 2.5.28 (incl.)
For more information see here.
Also available as Business Edition.
An authentication plug-in that prevents multiple log-ins by the same user credentials, for both frontend and backend. A useful tool for websites that share or exchange potentially sensitive information amongst its registered users.
User needs to either sign off the first session, or wait until the first session has expired.
Super Users can always have multiple log-ins.
With this premium edition, specified user groups can be allowed multiple log-ins.
Install or upgrade via Joomla! backend.
Basic setup instructions are here. These are also in the documentation that comes with the download package.
Configuration overview: see here.
Supported languages: Front-end: configurable. Back-end: English.
IMPORTANT NOTE WHEN USING OTHER 3RD PARTY PLUG-INS
Authentication and user plug-ins can be critical. The use of additional 3rd party (i.e. additional to a standard Joomla! install) authentication and user plug-ins may turn the Login One! software partly or totally ineffective, meaning that it will not - or only partly - perform the tasks for which it has been designed. In order to avoid disappointment, we recommend that you always test the Freeware Edition before purchasing a commercial edition.
The Premium Edition does not support user log-in by email address.
License: For personal, one-man business and non-profit use only. License terms are here.
Support: Limited support. Support terms are here. You may find the answer to your question on our forum.
Trouble Shooting guide: see here.
Discount and refund policy: see here.
You may want to try the free standard edition first. The standard edition is not configurable.