systemd-resolved DNSSEC on Rocky Linux 9: default state and impact

systemd-resolved DNSSEC validation on Rocky Linux 9: is it enabled by default?

0 reputation · 02 Jul 2022, 13:51 UTC

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Goal

Determine whether systemd-resolved DNSSEC validation is enabled on a fresh Rocky Linux 9 installation, and how this setting interacts with TLS certificate validation.

Constraints

systemd-resolved is installed by default but not enabled; DNSSEC is OFF unless configured. Enabling DNSSEC requires trust anchors; misconfiguration can break name resolution and TLS handshakes.

Unresolved Questions

What is the default DNSSEC state on Rocky Linux 9?
How does enabling DNSSEC affect the validation of TLS certificates for web applications?
What is the recommended process for configuring trust anchors to avoid resolution or certificate failures?

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systemd-resolved DNSSEC validation on Rocky Linux 9: is it enabled by default?

Goal

Constraints

Unresolved Questions

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