From the stupid DNS tricks department: ipasn.net
A trick that lets you map an IP address to an ASN without preprocessing any data.
Tag: DNS
Upcoming keynotes and program highlights at APRICOT 2026
Gain new operational skills and insights, meet like-minded peers, and help shape the Internet at APRICOT 2026. Here’s some of what you can look forward to.
Three of the best: Podcasts
Three of the best PING podcasts on Internet operations.
Domain Connect: A missing piece in the DNS toolbox
Guest Post: Domain renewal rates directly correlate with usage. Domain Connect creates a standardized way for service providers and DNS providers to communicate. Users complete setup in seconds with just a few clicks.
Is it really always the DNS?
When DNS breakage occurs and takes down your services, it points to an inadequate understanding of the interdependencies of your own complex systems.
Notes from RIPE 91
Routing the root, PQC for the RPKI, TTLs in the DNS, and much more from RIPE 91.
[Podcast] Greasing the wheels
Shumon Huque discusses how greasing — testing unused protocol values — can keep extensible protocols flexible and prevents future extensions from breaking.
An Italian case study: Collateral damage from live-event site blocking with Piracy Shield
Guest Post: Italy’s Piracy Shield blocks IPs and domains within minutes, but measurements show broad collateral damage to legitimate services.
Autocast: Automatic anycast site optimization
Guest Post: Automatically selecting the optimal anycast locations for fast .nl response times worldwide.
[Podcast] Measuring RSSAC047 Conformance
Measuring the measurements: Duane Wessels (Verisign) and Moritz Mullër (SIDN Labs) examine the effectiveness of ICANN’s RSSAC047 metrics for the DNS Root.