Hi all, Usage freeradius 2.1.2 and i'm with problems about username authentication. Simply authentication accept any variations of the same username. Example: Register user: "var" Is accept: "Var" "vAr" "vaR" VaR" "VAr" "vAR" "var " ... This ends "bypassing" the blockage i do for multiple sessions with the same user. ( attribute Simultaneous-Use ) I noticed that the file */**path/freeradius/policy.conf* have the function with filters if to solve problem, but not function. The unique that works is filter space start. filter_username { # spaces at the start: reject if (User-Name =~ /^ /) { reject } * # spaces at the end: reject** ** if (User-Name =~ / $$/) {** ** reject** ** }* *# Mixed case: reject** ** if (User-Name != "%{tolower:%{User-Name}}") {** ** reject** ** }* } Appreciate the help. -- * * **Bruno G Correia** Analista de Redes <http://br.linkedin.com/in/brunocorr> (83) 8812-2235 (83) 9862-0224