> Sorry, but I don't understand. I need to add an attribute to the request

Yes. The "unlang" documentation explains how to do that.

It is truth, the "unlang" documentation explains how to do that very well :)

Thanks for quoting the documentation. Did you think we didn't know
about it?

Sorry, I only wanted to justify why I put this in hints file.

No. In the "authorize" section, before the "files" module. There are
examples of this in the configuration files.

OK, now it's fine.

#/etc/freeradius/sites-available/default

authorize {
        preprocess
        mschap
        suffix
        eap {
                ok = return
        }
        if ("%{Realm}" =~ /(temp\.)?domain\.es$/){
                update control {
                        Intentos-Reject = ...
                }
        }

        files
        ...
}