FreeRADIUS - Dictionary Files

FreeRADIUS comes standard with a large amount of dictionary files.

These files are consulted by FreeRADIUS to convert an Attribute name to a digital value.

Attribute names are typically part of a profile associated with a user e.g. specifying a VLAN or IP pool or a speed limit that needs to be imposed.

This is similar to a DNS server or hosts file where a system will convert a hostmame to an IP Address in order to communicate on the network.

Standard FreeRADIUS dictionary files are located under the /usr/share/freeradius/ folder.

They have a naming convention of dictionary[dot][vedor] e.g. dictionary.mikrotik.

The recommendation is to keep this folder standard and not to add additional or modify dictionaries here.