====== Administration ======
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The main process is called ''fdpi_radius''. It is installed as a service in the system and managed using standard service commands.\\
Restart the service:
<code bash>systemctl fastradius restart</code>

FastRADIUS settings are located in the ''/etc/dpi'' directory:
  * ''fdpi_radius.conf'' — configuration file
  * ''prefixes.info'' — region settings (prefixes for subscriber logins), file is absent if not needed

Parameters in the configuration file are either "hot" or "cold":\\
  * Hot parameters can be changed during operation "on the fly," i.e., without restarting the service.
  * Cold parameters will only take effect after restarting the service.

Update hot settings without restarting the service:
<code bash>systemctl fastradius reload</code>

FastRADIUS logs are located in the ''/var/log/dpi'' directory:
  * ''fdr_alert.log'' — log for informational messages and errors
  * ''fdr_stat.log'' — log for statistical information
Log rotation is handled by the standard ''logrotate'' tool; by default, logs are stored for 24 hours.

The ''logrotate'' configuration file: ''/etc/logrotate.d/fdpi_radius'' \\
If the administrator changes the retention period, they must ensure sufficient disk space remains available.

Depending on the settings, FastRADIUS may write the following information to the ''/var/dump/dpi'' directory:
  * ''spdu_*.pcap'' - pcap files containing records of bad or all RADIUS packets
  * ''uip_*.txt'' - text logs with information about IP address allocation and release
In this case, it is necessary to implement manual cleanup to prevent disk overflow.