[rbldnsd] Binding rbldnsd to multipel addresses?

[Michael Tokarev]

Jeff Chan wrote:
> Is there a way to bind a single rbldnsd instance to multiple
> addresses on the same machine, kind of like what BIND wants
> to do by default?

Well, sort of, yes.  You may specify multiple -b options
for this, similar to listen-on directive in named.conf.
Rbldnsd will not listen on a wildcard address, and will
not try to discover system interfaces at run time.

Hmm strange there's no mention of this ability in
docs... I'll update the docs.

Please note that in this mode (when there's more than
single listening address specified), rbldnsd will use
extra system call per query, either select() or
poll() depending on your platform -- thus, instead
of 2 syscalls per query, it will perform 3 -- on a
busy server it may be problematic.

/mjt