Replacing bind by unbound

[Martin Husemann <martin%duskware.de@localhost>]

It seems the next major version of bind will not realy be suitable for
inclusion in the NetBSD base system any more, as it is rumoured to depend
on boost-libs.

We probably want to have a simple, recursing resolver daemon in base, but
we certainly do not need anything that is able to be a primary name server
(we have lots of options for those in pkgsrc).

One obvious candidate to replace bind is unbound (pkgsrc/net/unbound).

I haven't used it much, configuration is very different to bind, but it
looked good to me (and configuration different to bind is not realy a
negative point).

What it can not do (easilay/apparently - I didn't dig too deep), which
I do with bind a lot, is serve a local view of a zone to the inside
net, that differs from the official outside view. It can be told to use
a different primary server for such a case though, which would have
meant for me to run nsd as well on a different port and have unbound
forward queries there - while with bind I can do this with a single
daemon.

What do you think?

Martin