Log not getting generated in /var/log/ on Debian

[Fongaboo]

I've been running Unbound on FreeBSD for many years. Making a transition 
to Debian, and all seems to be working well except nsd.log does not seem 
to be generating in /var/log/ at all.

I've got this in nsd.conf:

         # log messages to file. Default to stderr and syslog (with
         # facility LOG_DAEMON).  stderr disappears when daemon goes to bg.
         logfile: "/var/log/nsd.log"

Instead it seems to be piping to /var/log/syslog. How do I allow it to 
create and append its own independent log file?


TIA

FONG