Administrative and Maintenance Tools - Multiple Account Detection & Prevention

It happens all of the time. Some members will make multiple accounts to back their own opinion or get an extra vote in a poll. Here's a modification that will detect and prevent multiple accounts, as well as notify the administration about multiple accounts. Inspiration for this modification came from the work of MPDev (creator of the Multiple Account Login Detector) and randominity (creator of the Multiple Account Registration Prevention). This is basically a combination of those two modifications but with new and improved functionality.

This is not an update to the "Multiple Account Login Detector (AE Detector)" nor is it an update to the "Multiple Account Registration Prevention." If you have either one of these (or both of them) installed, you should uninstall them before installing this modification.

With the initial release of Multiple Account Detection & Prevention, I believe that I have fixed previous bugs/complications as well as improved the efficiency and logic of the code. This is my first publicly released modification. I would appreciate any comments and suggestions!

Confirmed! This works perfectly on all vBulletin 3.6, 3.7, and 3.8 versions.

Unfortunately, I cannot give support right now. I may be able to help periodically, but until my schedule yields some more free time, I won't be much support. Please check back in a week or two.

Basic Details
File Edits: None
Template Edits: None
New Files: 6
Hooks/Plugins: 3
Global Phrases: 36
Install Time: 2 Minutes or Less
Install Difficulty: None, Very Easy

Features and Settings
- Login Detection
- Registration Prevention (Multiple Methods)
- Ignore Child Accounts
- Ignored Users
- Ignored Usergroups
- Ignored ISPs
- Prevention Usergroup
- IP Address Based Prevention
- Extended IP Address Prevention
- IP Address Time Inclusion
- Banned Account Check
- Primary Banned Usergroup
- Cookie Expiration Time
- Cookie Refreshing
- Cookie Name
- Cookie Reset
- Multiple Account Reporter
- Reports via PM
- PM Report Recipients
- Reports via New Thread
- Forum for Report Threads
- Verbose Mode
- BB Codes: LIST, URL, CODE

How it Works
With every newly recognized login/registration, an account-counting cookie is set (or added onto) with the member's User ID. Depending on the settings, Multiple Account Detection & Prevention will analyze the cookie during login/registration to see if there are any multiple accounts.

Login Detection offers cookie-checking and reporting. Registration Prevention offers the same thing, plus more advanced features. First of all, when it prevents an account from registering, it actually moves the registrant to the Prevention Usergroup so that the administration can review the case. This also allows for customized privileges for recognized multiple registrants. Registration Prevention also has IP address detection which finds out just as much information about users. Depending on an administrator's preference, this modification can also reban a new registrant if one of their previous accounts has been banned. In fact, if the administration wishes, multiple registrants can simply be denied registration all together.

Whenever there is a detection/prevention, the modification will report the information to the administration through private messages, a new thread, or both (depending on settings). The Multiple Account Reporter can be any valid user.

Known Issues
- vB Optimise users: Reporting via thread seems to get messed up by vB Optimise, so try reporting via PM instead.
- PhotoPost vBGallery users: The registration handling appears to not work properly when PhotoPost vBGallery is enabled.

From what I can tell, these known clashes have been caused by the other modification's coding. The author of vB Optimise will not even work with me to fix it. Until they improve their coding, I'm not sure if I can do anything about these issues. As far as I know, administrators that do not use the above modifications will not have any problems.

Installation / Upgrade
Unzip the package (madp.zip), upload the files to your forum location, and import the product file (allow overwrite if upgrading). Please read the ReadMe.txt file that is packaged with the modification for more information.

Please remember to mark this modification as installed if you use it!
If you like it, nominate it for the Mod of the Month!

Thank you!

[adriatic21]

problem solved.

I would like to know, what will be after to somebody clear cookies? He can make multiple acc??

[-=Leb=-]

it detects the ip address

[JesterP]

Originally Posted by Leb

it detects the ip address

I've noticed that a bunch of my prior banned members are not being re-banned. Even with the same ip, they get right through.

The cookie detection is working, but what would cause the IP detection to cease?

Thank you

Jester

[Alfa1]

Do you use vboptimise?

[haytham]

It's not picking up anything and I am very sure I have members getting banned and re-registering but I am not getting any messages.

[JesterP]

Originally Posted by Alfa1

Do you use vboptimise?

No I don't. It's catching the cookie people like crazy, but not IP matches.

Thank you!!!!

[MrAd]

Warning: fsockopen() [function.fsockopen]: unable to connect to tcp://xxxxx (Connection refused) in [path]/includes/class_mail.php on line 641

Warning: Cannot modify header information - headers already sent by (output started at [path]/includes/class_core.php:3283) in [path]/madp/prevention.php on line 277

Hello Ireceive the following error upon registration

[the_ace]

installed and working fine on VB 4.0.8

Is there any way to check registrations already made before installing the mod for multiple accounts ?

[Alan_SP]

Yes, it reports multiple registrations, but also multiple logins i.e. what you're asking for.

[dodoni]

hello to everyone, here is the situation for me:
installed it in 4.0.8 and have no reports at all.
I read the whole thread here, i think i set it correctly.

So far, i know at least one member, that had 2 accounts before the installation of this mod. He logged in with both of them and posted in the same thread (after the installation of the mod).

Shouldnt i get a pm and a thread discussion in that situation? (i have enable them, both)