ISC KB recursive server best practices

[Tony Finch]

A couple of notes and queries re.
https://kb.isc.org/article/AA-00874/0/Best-Practices-for-those-running-Recursive-Servers.html

RRL: I don't think this is a good idea on recursive servers; at the very
least it is difficult to tune appropriately for recursive servers.
Also, RRL is available as a build-time option in 9.9.4 and later, and by
default in all builds of 9.10 and later.

The max-cache-size 32 bit limit was fixed in 9.9.3.

Do you have any guidelines on --with-tuning=large in 9.10, or related
configuration knobs for 9.9?

Tony.
-- 
f.anthony.n.finch  <dot at dotat.at>  http://dotat.at/
Trafalgar: Cyclonic in northwest, otherwise mainly northerly or northwesterly
5 or 6. Slight or moderate. Showers in northwest. Good.