Need help setting up an LDAP plugin

[Santrex 7]

Greetings.
On the topic... Planin LDAP has been working for me for many years and it works great for all my domain Clients.
However, I have the simplest setting that does not allow me to “filter” its “participants”.
Because of this, “from time to time” I have “hares” running in who have “received” direct links to “Materials” somewhere.

I would like to know how I can set up a “Filter” in the plugin so that only “Users” of a SPECIFIC AD Group can access my Server.

[Luke 42077]

HI, did you try adding to the user search base?

[Santrex 7]

Users are "scattered across different OUs."
They can only be collected in "Security Group AD".
YES I tried adding this. But I couldn't get it to work...

Perhaps I need an example of how to do this correctly.
For those for whom it works.

[Luke 42077]

Does this example help?

It looks like he's got multiple groups in his search filter.