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High Availability

High availability patterns for bindcar and BIND9 deployments.

Overview

This section covers strategies for deploying bindcar and BIND9 in highly available configurations.

Primary-Secondary Architecture

Deploy multiple BIND9 instances with zone transfers:

  • Primary server with bindcar for zone management
  • Secondary servers for redundancy and geographic distribution
  • Automatic zone transfers (AXFR/IXFR)

Load Balancing

Distribute DNS queries across multiple BIND9 instances:

  • Round-robin DNS
  • Geographic load balancing
  • Health-checked backends

Kubernetes Deployments

  • StatefulSets for stable network identities
  • ReadinessProbes for traffic management
  • PodDisruptionBudgets for maintenance

Future Enhancements

Detailed HA patterns and configurations coming soon.

Next Steps