Wildcard certificate SERVFAIL via RFC2136 with unclear cause
A wildcard certificate via the RFC2136 DNS plugin fails with SERVFAIL, and the log does not show whether the config or the plugin is at fault.
Tier II · Emerging Problems that are still building up.
3 public reports · first reported 17 September 2026 · last reported 21 September 2026
What's going wrong
People using RFC2136 dynamic DNS updates to get wildcard certificates through proxy managers such as NPMPlus or Nginx Proxy Manager keep hitting a SERVFAIL error during the DNS-01 challenge.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 3 reports are about, and how many came each month.
- Related problems.
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