ddup

Self-hosted dynamic DNS updater and health-checker for round-robin load balancing.

Servicefreeglobal

ddup is a free, self-hosted dynamic DNS updater and health-checker that automatically points DNS records at healthy service replicas and excludes unhealthy ones, enabling simple round-robin load balancing and failover. It works with providers like Azure DNS, Cloudflare DNS, and OVH rather than replacing a DNS server. It's aimed at self-hosters who want basic DNS-based failover without deploying a full load balancer.

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