YADIFA is authoritative-focused and performance-oriented. Security should focus on zone transfer protection, DNSSEC hygiene, and minimal service exposure.
- Restrict listener interfaces and allowed client networks.
- Keep recursive functionality off authoritative hosts.
- Expose only required DNS ports.
¶ Transfer and Update Controls
- Protect transfers with TSIG.
- Restrict update and transfer peers explicitly.
- Review and remove stale secondary definitions.
¶ DNSSEC and Key Security
- Sign zones using controlled key lifecycle.
- Protect key files with strict permissions.
- Monitor signature validity and rollover windows.
¶ Host and Operational Controls
- Run as dedicated service user.
- Keep YADIFA and OS packages current.
- Centralize logs and alert on transfer/auth anomalies.