How to validate user at domain.com?

[Renato Sousa]

Hello All

I use freeradius 3.0.12 to authenticate users to a wireless network in my
company. Some time ago I made the configuration below to prevent users from
authenticating without using @domain in the request, which worked for a
long time, but stopped working.







*post-auth {...           update reply {                 User-Name: = &
User-Name                      }...}*

How can I configure freeradius to validate only users in the format '
username at domain.com' ?

Regards,

Renato L. Sousa