Authentification centralisée - FreeRadius
realm NULL {type = radius
   authhost = LOCAL
   accthost = LOCAL
}
realm crtbt {
   type = radius
   authhost = LOCAL
   accthost = LOCAL
realm cric {
   type = radius
   authhost = 147.173.3.249:1812
   accthost = 147.173.3.249:1813
   secret = secretradiuscnrs
   nostrip
}