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AS112 Deployment Characteristics and Security#

Netnod Tech Meeting 2026 digest Program Wildcard pick 6 October 2026

Speakers: not listed in the program.

  • Why: AS112 — the distributed, volunteer-run service that sinkholes reverse-DNS queries for RFC 1918 and reserved space — is infrastructure almost everyone's network touches and almost nobody thinks about. A deployment + security study of it is exactly the "wouldn't have searched for it, glad I saw it" item, with real DDoS/abuse implications for anyone running or depending on it.
  • What: An analysis of how AS112 nodes are deployed in practice and their security posture. (from title only)
  • How: Unknown; likely measurement of node distribution, load, and misconfiguration/attack exposure.
  • Where applicable: Directly relevant to operators who run AS112 nodes or see AS112-bound leakage; the deployment characteristics are inherently distributed-system-specific.