Debian rbldnsd package notes
============================

Socket activation
~~~~~~~~~~~~~~~~~
Socket activation is disabled by default in the service unit file, but it
can be enabled manually:

systemctl disable rbldnsd.service
systemctl stop rbldnsd.service
systemctl start rbldnsd.socket
systemctl enable rbldnsd.socket

If socket activation is used then the -b command line parameter will be
ignored.

Multiple instances
~~~~~~~~~~~~~~~~~~
Multiple instances of rbldnsd can be configured as usual in
/etc/default/rbldnsd, but then each parametrized unit must be enabled:

systemctl enable rbldnsd@mydnsbl
systemctl start rbldnsd@mydnsbl