Hi, i'm looking for some help to rewrite the User-Name attribute. My problem is: my organisation has to proxy to two different realms on two different servers. one realm is students, the other is professors (some users are handled locally). The User-Name of professors is name@professors so it was easy to prepare a real in proxy.conf named professors The students realm is not explicetely found in the User-Name attributes but I can distinguish the students by the presence of a '.' point in the username. (I used this rule in the users file DEFAULT User-Name =~ "\\.", Proxy-To-Realm := encrypt) My problem is now that I want to change the User-Name attr for students only, to name.surname@students before proxying it to the other radius server. I was planning to use rlm_attr_rewrite and I see 2 ways to do it: 1) I recognaize the realm by the Proxy-To-Real attr, but I don't know haw to tell it to the attr_rewrite module attr_rewrite studenti { attribute = User-Name # may be "packet", "reply", "proxy", "proxy_reply" or "config" searchin = proxy searchfor = "$" replacewith = "@students" ignore_case = no new_attribute = no max_matches = 10 append = no } 2) I recognaize once again the packet by the presence of a '.' point in the name but I don't know if I can use a perlish/awkish expression like attr_rewrite studenti { attribute = User-Name # may be "packet", "reply", "proxy", "proxy_reply" or "config" searchin = proxy searchfor = "\(*\\.*\)" replacewith = "$1@students" ignore_case = no new_attribute = no max_matches = 10 append = no } Can you address me in the right direction? Thank you, matteo faleschini