Andreas, Thanks for your sugestion. I don't think failover will do because let's say I log in as [EMAIL PROTECTED] if I have user [EMAIL PROTECTED] and user [EMAIL PROTECTED], authorize will search through ldap_isp1 and find user foo therefore it will never make it to the isp2 ldap server. I can not change the ldap schema and can not use the realm on the search.
Any other good ideas anyone? Paulo/ > Does anybory now a way to configure such an application using freeradius? As far as I understood, will grouping do what you want failover { ldap_isp1 ldap_isp2 ldap_isp3 } - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html