[nsd-users] NSD 4.1.3rc1 maintainers prerelease

Willem Toorop willem at nlnetlabs.nl
Tue Jun 9 08:23:53 UTC 2015

Wouter has a short vacation, but I think I can answer this.

Op 08-06-15 om 16:21 schreef Paul Wouters:
> On Thu, 4 Jun 2015, W.C.A. Wijngaards wrote:
>> NSD 4.1.3rc1 maintainers prerelease is available:
>> http://www.nlnetlabs.nl/downloads/nsd/nsd-4.1.3rc1.tar.gz
> been running on ns0.nohats.ca for two days without any visible problems.
> (including serving CDS records)
>> - - nsd-control addzones and delzones read list of zones from stdin.
>> - - hmac sha224, sha384 and sha512 support, patch from David Gwynne.
>> - - max-interfaces raised to 32.
> You mean max-ips? :P

That is right.  --with-max-ips determines the number of "interface:"
entries in the config ;)

> We always compile with --with-max-ips=1024 due to some demands in the
> fields for much higher maximums. Any reason to put the default limit
> so low?

I believe the value 32 is a safety measure.  pselect is (still) used for
nsd inter process communications (over anonymous sockets).  With a high
number of interfaces, the chance on higher numbered file descriptors
(numbers > FD_SETSIZE) becomes larger.
(see also https://www.nlnetlabs.nl/bugs-script/show_bug.cgi?id=639 )

I'll review thoroughly the coming two weeks and return to you with a
more precise answer.

> Paul
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