1
URLs: It's Complicated
Let's play silly games with URLs...
Jan Schaumann
This is just another boring personal website. I don't have a Facebook, for obvious reasons. You can find me on Mastodon or LinkedIn (local résumé ). I also have a blog (because who doesn't), as well as, to the great amusement of my children, a distinct German accent.
- Popular posts
- 17
- Total points
- 3,001
- HN comments
- 1,621
- Rank
- #470 personal
Visit netmeister.org → On Hacker News Oct 2019 – Sep 2026
Networking & Internet 7Software Engineering 5Security & Privacy 4Systems & Performance 3Career & Management 3Web & Frontend 2
2
Who reads your email?
A look at diversity of MX records across all gTLDs and the Top 1M domains, indicating where SMTP is concentrated and what organizations might have broad access to the world's emails.
3
DNS Security: Threat Modeling DNSSEC, DoT, and DoH
There's been a lot of talk about DNS-over-HTTPS aka DoH lately, primarily due to Mozilla's and Google's respective plans to move forward with enabling it in their browsers. There's also a lot of misunderstanding and conflation of speculated plans for world domination with practical benefits of the technology; it…
4
Whois: Fragile, Unparseable, Obsolete
A rather unstructured look at one of the older and infuriatingly trivial internet protocols: WHOIS
5
(All) DNS Resource Records
Just how many weird Resource Records can you stuff into a zone file? And what do these weird RRs actually return?
6
Basic Network Troubleshooting
A quick explanation of the differences between network failures most commonly observed in day to day operatoins. And no, it's not (always) DNS.
7
What’s the maximum size of a DNS response?
Everybody knows a DNS response needs to fit into a 512 byte UDP packet, right? But suppose it doesn't fit...