default installation from yum (directory /etc/raddb})
exec=${exec:=/usr/sbin/$prog}
config_dir=${config_dir:=/etc/raddb}
config=${config:=$config_dir/radiusd.conf}
pidfile=${pidfile:=/var/run/$prog/$prog.pid}
lockfile=${lockfile:=/var/lock/subsys/radiusd}
using install from source from (directory /opt/freeradius3.0.17)
exec=${exec:=/usr/sbin/$prog}
config_dir=${config_dir:=/opt/freeradius3.0.17/etc/raddb}
config=${config:=$config_dir/radiusd.conf}
pidfile=${pidfile:=/opt/freeradius3.0.17/var/run/$prog/$prog.pid}
lockfile=${lockfile:=/opt/freeradius3.0.17/var/lock/subsys/radiusd}