I would like to use syslog to log messages coming from my PHP based site. My question is - can I add custom facility name? I know there are predefined facilities like:

auth, authpriv, cron, dæmon, kern, lpr, mail, mark, news, syslog, user, UUCP and local0 through local7.


And as I understand I could use local0 - local6 facilities for this.

But I just feel that if I could add something like this to syslog:

mySiteName.* /var/log/mySiteName.log


It would be visually easier to understand for others. Unfortunately above line results in:

rsyslogd-3000: unknown facility name "mySiteName"


So - is there a way to use custom facility name?

The syslog interface only allows a fixed set of facilities, defined by constants in /usr/include/sys/syslog.h. The only provision for custom facilities are local0 through local7.
:programname, isequal, "uptimed" /var/log/uptimed.log