How to set up alerts for DNS record changes?
Monitoring services:
- DNS Spy, Datadog, Pingdom
- Alert on any record modification
- Historical tracking of changes
Provider features:
- Some DNS hosts have audit logs and alerts
- API-based change notifications
Custom monitoring:
- Script to periodically query and compare records
- Alert if expected records change
- Store baseline and compare
What to monitor:
- MX records (mail routing hijacking)
- SPF/DKIM/DMARC (authentication changes)
- A records (server redirection)
- Unexpected changes could indicate compromise or accidental modification.
Watchman service for your registry entries. Alert if anyone modifies your filed documents.
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