Replace Your Bastion Host with Self-Hosted Zero Trust Access

The short answer: A bastion host (or bastion server) is a hardened, internet-facing machine that admins connect to over SSH or RDP before reaching private systems. Its weak spots are the exposed login service and the broad network access it hands out. You can replace it with a cloud provider’s managed bastion (Azure Bastion, AWS Session Manager, Google Cloud IAP), which works well inside a single cloud.