How to Update Realm Configuration
The following information explains when a SIGHUP (1) signal is sufficient, or insufficient, for updating realm configuration:
A SIGHUP (1) signal is sufficient to load any changes that you make to proxy.ini, filter.ini, or *.pro files for the purpose of configuring proxy RADIUS realms.
However, when you configure directed realms (proxy.ini, *.dir files, and possibly *.acc, *.aut, and accounting *.ini files as well) you must load configuration changes as follows. If you have added or changed:
Any directed accounting methods at all, you must stop and restart the server.
Directed authentication methods in which external database (SQL or LDAP) authentication is used, you must stop and restart the server.
Directed authentication methods in which local or pass-through (Local, UNIX, Domain, or Host) authentication is used, a SIGHUP (1) signal is sufficient.
For information about stopping and starting the server see When and How to Stop and Restart Steel-Belted Radius Carrier.