This is the list that contains the mapping of users to filter groups. It is used by almost all the auth plugin methods (it is not used by auth plugin methods -such as IP auth- that identify computers rather than users).
It is used only if there is more than one filter group (i.e. filtergroups has a value greater than one). In systems without multiple filter groups, everyone is always assigned to filter group f1 and this list file is not consulted.
The format of each entry is user=filter1-99
where 1-99 are the filter groups.
(Usually only a handful of filter groups are used,
but DansGuardian allows up to 99 filter groups
so as to never be the cause of a limitation.)
As an example, an entry might look like:
danielg=filter2