Hi, sorry, I am completely new to Radius … I want to change a FreeRadius server to authenticate a few hosts by their hostnames. The hostnames would be stored in a config file. How could I do this? This is the authentication request: rad_recv: Access-Request packet from host 10.10.10.21 port 54285, id=145, length=347 Framed-MTU = 1480 NAS-IP-Address = 10.10.10.21 NAS-Identifier = "HP-2520-24-PoE" User-Name = "host/MYHOSTNAME" Service-Type = Framed-User Framed-Protocol = PPP NAS-Port = 1 NAS-Port-Type = Ethernet NAS-Port-Id = "1" Called-Station-Id = "84-34-97-de-df-80" Calling-Station-Id = "00-1f-29-98-8d-41" Connect-Info = "CONNECT Ethernet 100Mbps Full duplex" Tunnel-Type:0 = VLAN Tunnel-Medium-Type:0 = IEEE-802 Tunnel-Private-Group-Id:0 = "201" EAP-Message = 0x0201001401686f73742f544344452d3030303131 Message-Authenticator = 0xe06791a76c819a3dc0f89c8baf2df141 MS-RAS-Vendor = 11 Thanks for any help! Take care, Stefan