# Reference from: freeradius-server/redhat/radiusd.service

[Unit]
Description=FreeRADIUS multi-protocol policy server
After=network-online.target
Documentation=man:radiusd(8) man:radiusd.conf(5) http://wiki.freeradius.org/ http://networkradius.com/doc/

[Service]
Type=notify
WatchdogSec=60
NotifyAccess=all
EnvironmentFile=-/etc/default/radiusd

# FreeRADIUS can do static evaluation of policy language rules based
# on environmental variables which is very useful for doing per-host
# customization.
# Unfortunately systemd does not allow variable substitutions such
# as %H or $(hostname) in the EnvironmentFile.
# We provide HOSTNAME here for convenience.
Environment=HOSTNAME=%H

# Limit memory to 2G this is fine for %99.99 of deployments.  FreeRADIUS
# is not memory hungry, if it's using more than this, then there's probably
# a leak somewhere.
MemoryLimit=2G

ExecStartPre=/usr/sbin/radiusd $FREERADIUS_OPTIONS -Cx -lstdout
ExecStart=/usr/sbin/radiusd -f $FREERADIUS_OPTIONS
Restart=on-failure
RestartSec=5
ExecReload=/usr/sbin/radiusd $FREERADIUS_OPTIONS -Cxm -lstdout
ExecReload=/bin/kill -HUP $MAINPID

# Only allow native system calls
SystemCallArchitectures=native

[Install]
WantedBy=multi-user.target