DxEnterprise is an infrastructure-agnostic high availability (HA) clustering and software-defined perimeter solution designed to manage Microsoft SQL Server workloads. It provides unified HA management across Windows, Linux, and Kubernetes environments, enabling cross-platform failover and secure Zero Trust Network Access (ZTNA) tunneling between cluster nodes without requiring virtual private networks (VPNs). The software includes DxOperator, a SQL Server operator for Kubernetes that automates the deployment, scaling, and lifecycle management of Always-On Availability Groups (AGs). DxEnterprise supports hybrid and multi-cloud architectures, allowing organizations to stretch clusters across subnets, availability zones, and regions to achieve disaster recovery and nearest-to-zero downtime for native instances and containerized database deployments.