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Yosemite with ISC's DHCP daemon

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I erased the internal disk on a recent Mac mini and installed OS X 10.10.5 and then downloaded ISC's DHCPd and installed it.  I pulled the dhcpd.conf file from the Time Machine backup and everything is working fine.

Except for one thing.

In older OSes, one enabled logging (to /var/log/dhcpd.log) by modifying the site.h and /etc/syslog.conf as in:

   # cd /usr/local/dhcp-4.2.3-P1/includes
   # cp -p     site.h site.h.orig
   # vi site.h
   # diff site.h site.h.orig
   187,188d186
   < #define DHCPD_LOG_FACILITY LOG_LOCAL4

   # cd /etc
   # cp -p     syslog.conf syslog.conf.apple-original
   # vi syslog.conf
   # /bin/diff syslog.conf syslog.conf.apple-original
   20d19
   < local4.debug                               /var/log/dhcpd.log
   # touch /var/log/dhcpd.log


That was simple and it always worked without issues.  However, in Yosemite, the syslog.conf file looks like this:

   # Note that flat file logs are now configured in /etc/asl.conf

   install.*                                               @127.0.0.1:32376


and the asl.conf file looks like:

   ##
   # configuration file for syslogd and aslmanager
   ##

   # authpriv messages are root/admin readable
   ? [= Facility authpriv] access 0 80

   # remoteauth critical, alert, and emergency messages are root/admin readable
   ? [= Facility remoteauth] [<= Level critical] access 0 80

   # broadcast emergency messages
   ? [= Level emergency] broadcast

   # save kernel [PID 0] and launchd [PID 1] messages
   ? [<= PID 1] store

   # ignore "internal" facility
   ? [= Facility internal] ignore

   # save everything from emergency to notice
   ? [<= Level notice] store

   # Rules for /var/log/system.log 
   > system.log mode=0640 format=bsd rotate=seq compress file_max=5M all_max=50M
   ? [= Sender kernel] file system.log
   ? [<= Level notice] file system.log
   ? [= Facility auth] [<= Level info] file system.log
   ? [= Facility authpriv] [<= Level info] file system.log

   # Facility com.apple.alf.logging gets saved in appfirewall.log
   ? [= Facility com.apple.alf.logging] file appfirewall.log file_max=5M all_max=50M

I googled for information on this but could find nothing to assist me.  Has anyone encountered this and can anyone point me to a website that explains how to configure logging to /var/log/dhcpd.log in Yosemite?   Thanks a bunch.

Jack

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Yosemite with ISC's DHCP daemon Jack Shown <jackshown@gmail.com> - 2015-09-30 18:54 -0700

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