FreeBSD syslogd

The system used by FreeBSD to manage logs.

Documentation

FreeBSD handbook	https://people.freebsd.org/~rodrigc/doc/handbook/configtuning-syslog.html
man syslogd	https://www.freebsd.org/cgi/man.cgi?query=syslogd
man syslogd.conf	https://www.freebsd.org/cgi/man.cgi?query=syslog.conf

Locations

/etc/syslog.conf	match log-fields, and redirect them to files (ex: daemon.log, debug.log, ...)
/etc/newsyslog.conf	manages log-rotation