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Data Node certificate hostname mismatch breaks Graylog

Data Node certificates stop matching the address Graylog connects to, so Graylog cannot verify the node after upgrades or IP changes.

Tier I · Proven The best-established problems.

6 public reports · first reported 12 June 2026 · last reported 20 July 2026

Idea report · $19 · No contacts · All sales final

See a sample idea report

What's going wrong

Teams running Graylog with a separate Data Node report that after upgrading, or after their container or host addresses change, the node certificate no longer lists the name or IP that Graylog uses.

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 6 reports are about, and how many came each month.
  • Related problems.

No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.