Email deliverability remains one of the most critical challenges when self-hosting mail servers on a VPS. With major email providers implementing stricter authentication requirements in 2025, proper configuration of email security protocols is essential for ensuring your messages reach their…
With Redis dual-licensing changes affecting many organizations, Valkey has emerged as the leading open-source alternative. As a Linux Foundation project and true Redis fork, Valkey offers complete drop-in compatibility while maintaining the performance characteristics that made Redis popular. This comprehensive…
Tailscale’s DERP (Designated Encrypted Relay for Packets) servers act as fallback relays when devices cannot establish direct peer-to-peer connections due to NAT traversal failures. By deploying your own DERP network across multiple regions, you can reduce latency, improve reliability, and…
Introduction Building a globally distributed database architecture is challenging, but CockroachDB makes it possible with its strong consistency guarantees and automated multi-region capabilities. In this comprehensive tutorial, we’ll deploy a production-ready CockroachDB 24.x cluster across Amsterdam VPS and New York…
Introduction Building a robust DNS infrastructure is crucial for ensuring high availability and optimal performance for your applications. An anycast DNS setup allows you to deploy multiple DNS servers across different geographic locations while using the same IP addresses, automatically…
Building a distributed ClickHouse cluster across multiple regions provides exceptional data availability, improved query performance through data locality, and robust disaster recovery capabilities. In this comprehensive tutorial, we’ll deploy a production-ready ClickHouse 24.x cluster spanning Amsterdam and New York VPS…
Building a multi-region OpenSearch cluster provides enterprise-grade search capabilities with automatic failover and geographic data distribution. This comprehensive guide walks through deploying OpenSearch 2.15 across Amsterdam VPS and New York VPS nodes with advanced features including cross-cluster replication, Index State…
Building a robust multi-region Kafka infrastructure is essential for organizations requiring high availability and disaster recovery capabilities. This comprehensive guide demonstrates how to deploy Apache Kafka 3.8 using KRaft mode across Amsterdam and New York VPS instances, complete with MirrorMaker…
WebRTC applications require reliable ICE candidates and connectivity solutions to traverse NAT and firewalls. A highly available TURN/STUN server deployment across multiple geographic regions ensures low-latency media relay and optimal user experience for real-time communications. This comprehensive tutorial demonstrates deploying…
Building a geo-distributed MongoDB 7 cluster across continents requires careful planning for data locality, fault tolerance, and security. This comprehensive tutorial demonstrates how to deploy a production-ready geo-sharded MongoDB cluster spanning Amsterdam VPS and New York VPS instances, implementing zone…
