Security

Secure your Bindy DNS infrastructure against threats and unauthorized access.

Security Layers

1. Network Security

• Firewall rules limiting DNS access
• Network policies in Kubernetes
• Private networks for zone transfers

2. Access Control

• Query restrictions (allowQuery)
• Transfer restrictions (allowTransfer)
• RBAC for Kubernetes resources

3. DNSSEC

• Cryptographic validation
• Zone signing
• Trust chain verification

4. Pod Security

• Pod Security Standards
• SecurityContext settings
• Read-only filesystems

Best Practices

1. Principle of Least Privilege - Minimal permissions
2. Defense in Depth - Multiple security layers
3. Regular Updates - Keep BIND9 and controller updated
4. Audit Logging - Track all changes
5. Encryption - TLS for management, DNSSEC for queries

Quick Security Checklist

• Enable DNSSEC for public zones
• Restrict allowQuery to expected networks
• Limit allowTransfer to secondary servers only
• Use RBAC for Kubernetes access
• Enable Pod Security Standards
• Regular security audits
• Monitor for suspicious queries
• Keep software updated

Next Steps

• DNSSEC - Enable cryptographic validation
• Access Control - Configure query and transfer restrictions