Hi..   I searched thru the forums but not getting the right username after using regex. The request I am getting is : test@google.com and I need to strip everything after @ and pass the username as test. I am using ldap for auth. This is the config I have in ldap.                 if (User-Name =~ /^([^@]+)(@.*)$/) {   // just want to dblchck is the right regex                       update request {                               Stripped-User-Name := "%{0}"                       }                 }                 filter = "(uid=%{Stripped-User-Name})"                 //filter = "(uid=%{Stripped-User-Name:-%{User-Name}})"                 //filter = "(uid=%{Stripped-User-Name})"                 encryption_scheme = crypt I get the following while ldap lookup   expand: (uid=%{Stripped-User-Name}) -> (uid=) Here is the radius -X log ; rad_recv: Access-Request packet from host 216.2.193.1 port 55751, id=107, length=65         User-Name = "test@google.com"         User-Password = "test123" +- entering group authorize ++[preprocess] returns ok ++[chap] returns noop ++[mschap] returns noop     rlm_realm: Looking up realm "google.com" for User-Name = "test@google.com"     rlm_realm: No such realm "google.com" ++[suffix] returns noop   rlm_eap: No EAP-Message, not doing EAP ++[eap] returns noop ++[unix] returns notfound ++[files] returns noop ++- entering group rlm_ldap: - authorize rlm_ldap: performing user authorization for test@google.com         expand: (uid=%{Stripped-User-Name}) -> (uid=)         expand: dc=xyz,dc=net,o=internet -> dc=xyz,dc=net,o=internet rlm_ldap: ldap_get_conn: Checking Id: 0