Pre-defined virtual servers

FreeRADIUS includes virtual servers under the sites-available sub-directory. Some can be used as is, while others are templates to use for special requirements. The following are some virtual servers:

• buffered-sql: This virtual server is used to overcome speed limitations on large SQL databases (type = detail).
• copy-acct-to-home-server: This virtual server can be used as a template for recording one accounting request in two places (type = detail).
• coa: A template for handling coa (Change of Authority) and pod (Packet of Disconnect) requests (type = coa).
• decoupled-accounting: A template to decouple accounting. Works on the same principles as the buffered-sql virtual server (type = detail).
• status: A virtual server to get status information from a FreeRADIUS server (type = status).

As we mentioned at the start of this chapter, the strength of virtual servers is their flexibility. Since virtual servers are so flexible, there are no fixed rules when creating and implementing...