DelphinusDNS Blog

RFC 8906 tests, we fail on 5 tests

September 30th, 2020

I have written down which issues delphinusdnsd fails on here is the list:

• 8.1.4 - no question
• 8.2.5 - no AA flag required
• 8.2.6 - no AA flag required
• 8.2.7 - couldn't test completely because answers are under 512 bytes
• 8.2.9 - no AA flag required

I do not see these as serious violations so I'll take my time with fixing them. I'm currently finding out on IRC whether the AA flags on NOTIMPL and BADVERS is a global thing then I just have to fix reply_notimpl() and reply_badvers().

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Likely one of the last commits before 1.5.0 release

September 24th, 2020

I have added an AXFR bytelimit (configured within an rzone) to delphinusdnsd in replicant mode. The default bytelimit is 64 MB which should be enough for most zones. Maximum bytelimit is 4GB. Keep this in mind when using delphinusdnsd as a replicant.

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Delphinusdns.ORG algorithm change upcoming

September 20th, 2020

I'm changing the algorithm on delphinusdns.org to alg 13. To do this I have to take the zone out of DNSSEC for a day or two, which is the easiest way because there is recursive servers out there that can't do an algorithm rollover correctly. I already tested this with a test zone (dtschland.eu). These changes will be done next week, possibly starting tomorrow. The steps are 1. remove the DS entry at .org level, 2. wait 86400 seconds (TTL) 3. remove DNSKEY 4. wait 86400 seconds (TTL) 5. install new keys and sign. 6. upload new DS entry to registrar for .org level insertion. I'm also doing this for three other zones in parallel. Extra caution has to be done at the centroid.eu zone because it has a DANE setup which I may have to disable for these two days.

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Killed backward compatibility for old OpenSSL

September 17th, 2020

With this commit I took out old backward compatibility for OpenSSL before 1.0.1. Since LibreSSL is portable across many platforms and we rely on that for NetBSD and OpenBSD there is not much need for this compatibility code anymore. It will be reflected in the 1.5.0 release by next month.

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In five days this blog will be 1 year old

September 6th, 2020

On friday of this week you'll see the first "on this day" entries. Happy Anniversary Delphinusdns blog!

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Delphinusdnsd PATH's changed

September 6th, 2020

Please update your configs starting with tomorrows snapshots. Commit comment here.

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1.5.0 possibly released mid to late October

September 1st, 2020

OpenBSD 6.8 is in beta. That gives around 1 month of testing for this OS before it is released. I checked and OpenBSD 6.2 was in beta on August 20th, 2017 and it was released on October 9th, 2017, so judging by how long this takes it took them 40 days. So given the release mid October for OpenBSD, delphinusdnsd will be about 2 weeks later, but before November. We'll see. This pegging to OpenBSD is only for this year, I don't plan on doing this too often. Delphinusdnsd is developed on OpenBSD for what it's worth.

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What's next in the next few weeks?

August 30th, 2020

September is almost around. Two things need to be done before I roll the 1.5.0 release.

• I need to do another portcheck to see that Linux, FreeBSD and NetBSD work
• I want to move delphinusdnsd to a /var/delphinusdnsd directory as is done in the OpenBSD port (which hasn't been accepted afaik, but do that anyhow).

After that the 1.5.0 release is pretty much ready and I'll just be waiting for the OpenBSD 6.8 release so that I can release a few days after.

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Silently fixed

August 26th, 2020

Between July 6th and today there has been a countdown timer for AXFR zone TTLs. This wasn't immediately noticed because my zones are less than 1 second apart notification wise and I simply didn't notice it. Tools that I use didn't mark it either. If you need the fix you should grab tomorrows snapshot.

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Very large databases

August 26th, 2020

I have filled delphinusdnsd with a dataset of 1.4 million AAAA records. The size in memory for this is 2.4 GB roughly. But the AXFR to such a database with its individual (in my case 1440) zones took close to 2 minutes. I have just committed code to shave this off to 2.4 seconds, a win-win.

However this changes the behaviour of delphinusdnsd. Before you could do:

zone "anything you like" {
	centroid.eu,a,3600,192.168.0.1
	...
}

This is not the way things work now. You MUST put in the zone name in zone "". Many people were doing this anyhow, but now it's a requirement.

zone "centroid.eu." {
	centroid.eu,a,3600,192.168.0.1
	...
}

This behavior will be downloadable in tomorrows snapshot (27th of August) and onwards, and will be in 1.5.0 delphinusdnsd.

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