Searching ACP For and Discourings Specific IP Addresses

[Steve Freides]

I am dealing with a problem user who has registered for and uses our forum from one of two specific IP addresses and, when we stopped approving their posts, simply created another user account for themselves and attempted to post but from one of those same two IP addresses. Both addresses come from the same place.

1. I would like to: search for a specific IP address from the ACP for the purpose of finding out if I have any legitimate, still active users who belong to our forum, just for my own information. Is this possible and if so, how? A feature I've missed or requires an add-on and, if the latter, a link to one here would be appreciated.

2. I just added these two addresses to Discouraged IPs - my understanding is that this will prevent new registrations from those addresses but will not impact users who are already on our forum and using those addresses - is that right?

Any other thoughts on this would be appreciated.

As always, many thanks for all the help and guidance I receive here.

-S-

 

[Rene_V]

1. I would like to: search for a specific IP address from the ACP for the purpose of finding out if I have any legitimate, still active users who belong to our forum, just for my own information. Is this possible and if so, how? A feature I've missed or requires an add-on and, if the latter, a link to one here would be appreciated.

At the home page of the Admin panel there is a search field called: Search for users, where you can search for ip addresses.

2. I just added these two addresses to Discouraged IPs - my understanding is that this will prevent new registrations from those addresses but will not impact users who are already on our forum and using those addresses - is that right?

That's not correct. If you discourage an ip address, it will impact guests as well as registered users. At least that's my understanding on the subject.

I am dealing with a problem user who has registered for and uses our forum from one of two specific IP addresses and, when we stopped approving their posts, simply created another user account for themselves and attempted to post but from one of those same two IP addresses. Both addresses come from the same place.

I've coded an add-on that it will detect users who register multiple accounts and share the login using not only the same ip addresses, but devices too. It's very accurate if I say so myself. You can see it here should you be interested.

Resource icon R

Multiple accounts detector/Prevent multiple accounts registrations

Dec 11, 2025

Detects members who have registered multiple accounts&prevents multiple accounts registrations.

• Rene_V
• Add-ons [2.x]

 

[smallwheels]

1. I would like to: search for a specific IP address from the ACP for the purpose of finding out if I have any legitimate, still active users who belong to our forum, just for my own information. Is this possible and if so, how? A feature I've missed or requires an add-on and, if the latter, a link to one here would be appreciated.

/admin.php?users/search -> tab "search by IP-address"

2. I just added these two addresses to Discouraged IPs - my understanding is that this will prevent new registrations from those addresses but will not impact users who are already on our forum and using those addresses - is that right?

Not, that's incorrect. Discouraging an IP means that users coming from that IP will suffer from artificially created issues as if the had connection problems. Given you question and assumption it would probably be a good idea to read through the manual for XF to get familiar with the concepts and admin functions. Discouragement is i.e. described here:

Discouragement | XenForo

At times, banning a person may not be entirely effective. With the design of browsers, it's easy for a problematic user to register a new account.

docs.xenforo.com

I've coded an add-on that will detect multiple users who register and log using not only the same ip addresses, but devices too.

There is also an excellent one from XON with a pretty long proven track record. It does way more than to just detect multi accounts but needs a bit of knowledge and tinkering to use all possibilities:

X

Signup abuse detection and blocking

Nov 20, 2018

Provides a toolkit to reduce signup spam

• Xon
• Add-ons [2.x]

However, if said user comes from a fixed IP and no other users come from that IP I'd simply block the IP via ACP. While it is easy to circumvent that said user does not seem to bother that he can easily identified, so it might be enough.