Hello, i`m running a Freeradius Server 2.1.12 on a Ubuntu 13.04 VM. The Login with 802.1 works perfectly. I`m using a Windows LDAP Server for the Login and want to add a second LDAP-Server for a Fail Over. I`m following the Tutorials to setup my Freeradius Server: *Click*. I`cant find a suitable Tutorial to adding a second LDAP Server for a Fail Over. Which files are responsible for the integration of a second LDAP server? These are my current Settings: /etc/freeradius/modules/ldap: ldap ldap1 { server = "serv01.xyz.local" basedn = "dc=xyz,dc=local" filter = "(uid=%{%{Stripped-User-Name}:-%{User-Name}})" ldap_connections_number = 5 timeout = 4 timelimit = 3 net_timeout = 1 tls { start_tls = no } dictionary_mapping = ${confdir}/ldap.attrmap edir_account_policy_check = no set_auth_type = no keepalive { # LDAP_OPT_X_KEEPALIVE_IDLE idle = 60 # LDAP_OPT_X_KEEPALIVE_PROBES probes = 3 # LDAP_OPT_X_KEEPALIVE_INTERVAL interval = 3 } } ldap ldap2 { server = "serv02.xyz.local" basedn = "dc=xyz,dc=local" filter = "(uid=%{%{Stripped-User-Name}:-%{User-Name}})" ldap_connections_number = 5 timeout = 4 timelimit = 3 net_timeout = 1 tls { start_tls = no } dictionary_mapping = ${confdir}/ldap.attrmap edir_account_policy_check = no set_auth_type = no keepalive { # LDAP_OPT_X_KEEPALIVE_IDLE idle = 60 # LDAP_OPT_X_KEEPALIVE_PROBES probes = 3 # LDAP_OPT_X_KEEPALIVE_INTERVAL interval = 3 } } /etc/samba/smb.conf: [global] workgroup = XYZ dns proxy = no security = ads password server = serv01.xyz.local password server = serv02.xyz.local winbind separator = + /etc/freeradius/sites-enabled/inner-tunnel: authenticate { ntlm_auth … /etc/freeradius/sites-enabled/default: authenticate { ntlm_auth … /etc/freeradius/users: DEFAULT Auth-Type = ntlm_auth Thanks for Help! BeliarsFire