I'm freeradius combined with mysql. Is it possible to check custom property values of existens. Like "let the user logon iff xyz == 1" I guess it is just a matter of writing the sql. But which queries do i have to customize?

None. Create a custom attribute xyz in dictionary file and use it like any other in radcheck table. http://www.freeradius.org/radiusd/man/dictionary.html Ivan Kalik Kalik Informatika ISP