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Duplicate IP Report by BOP5 (Checks for users sharing the same IP Addresses) VB3/VB4 Details »
Duplicate IP Report by BOP5 (Checks for users sharing the same IP Addresses) VB3/VB4
Mod Version: 2.1.2, by BirdOPrey5 (IB Staff) BirdOPrey5 is offline
Developer Last Online: May 2020 I like it Show Printable Version Email this Page

vB Version: 4.x.x Rating: (31 votes - 5.00 average) Installs: 328
Released: 06 May 2012 Last Update: 17 Dec 2012 Downloads: 1416
Supported Additional Files Translations  

Brought to you by BirdOPrey5

Version 2.1.2 - Fixed MySQLi bug - Introduced GOLD/Premium Version
Version 2.1 - Added BBCode to Banned Users and Post Count Options, better debug info
Version 2.0 - Added report for Registration (User) IP Address Checking

Check out the GOLD Version for these additional features:
  • Run reports directly from the Admin CP anytime you want
  • Post daily report as a "New Post" into an existing thread rather than a "New Thread" each night
  • Access to another Gold Mod- Recent Registration Check- will block spammers and scammers trying to register multiple accounts from the same IP address

This mod will run a nightly scan of your "post" and/or "user" table. It will report if it finds any users sharing the same IP address. You choose in the options how many days back you want to look. (Max of 5000 days, but please use more reasonable limits.)

If any "duplicate use" is found the IP addresses, usernames and optionally the posts themselves will be reported.

See a real report: Report Demo at

The report takes the form of a new thread posted to the forum of the Admin's choosing (A private forum for mods or admins is strongly recommended.)

There are options for whitelisting (ignoring) specific IP Addresses and/or userids so if you or your mods post as other users you can prevent that from being reported. If you use the Zoints Anonymous Posting mod you will want to put that userid on the whitelist else the report will out whoever posted "Anonymously."

NOTE: There are PERFECTLY valid reasons 2 or more users may share the same IP address. This report in and of itself is not proof of malicious activity. Users that connect by mobile devices, work in same offices, or go to the same schools for example would likely share the same IP address on some posts. So would too any users connecting from the same home or public Wi-Fi network.

As of version 2.0 there is a report for both the "post" and "user" table. The "user" table will find when 2 or more users register with the same IP address.

Tested and working on VB 3.8.7 and VB 4.1.12/4.2.0 and should work on all 3.7 / 3.8 / 4.x versions.


Please "Mark as Installed" if you use this.
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Similar Mod
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Track all Duplicate IP Addresses via Admin CP (by Jolten) tamarian vBulletin 3.5 Add-ons 66 21 Apr 2011 16:35
Track all Duplicate IP Addresses via Admin CP Jolten vBulletin 3.0 Full Releases 73 28 Jul 2006 05:04

Old 06 Jan 2016, 03:14
Faskis's Avatar
Faskis Faskis is offline
Join Date: Jul 2008
Real name: Chris
Originally Posted by BirdOPrey5 View Post
It adds a scheduled task to vBulletin's list of scheduled tasks that can be seen in the Admin CP under Scheduled Task Manager.

Like all scheduled tasks they are only triggered if there is regular traffic to the forum because they are initiated on a page load where the cronimage is triggered which is in the footer template.

If no one visits the site at night the task never gets triggered.

There is a window of course, if someone comes soon after it should trigger, but at some point it just won't trigger.

Try setting it to run during a busier time of the day on your forum perhaps.
On average, there are ~200 users active at anytime of the day, so I don't think that's the issue, but I'll go ahead and adjust it to run every 6 hours to see if any of those will work.

Edit: Forgot that the scheduled tasks don't work exactly like cron jobs do, so you can't specify multiple hours. I've adjusted it to a busier hour, however.
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Old 23 Mar 2020, 18:24
Hostboard's Avatar
Hostboard Hostboard is offline
Join Date: May 2002
Real name: Steven
When IPV6 is detected and reported, if the code is like "colon" "D" a smile is displayed. Will need to disable smiles in the forums settings,
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