Google Cloud IAP Tunnel
Google Cloud IAP Tunnel is a command-line tool that creates secure SSH and RDP connections to virtual machine instances in Google Cloud Platform (GCP) without exposing them to the public internet. It leverages Identity-Aware Proxy (IAP) to authenticate users and authorize access based on IAM policies, providing a zero-trust network security model. This allows developers and administrators to manage resources like Compute Engine VMs securely from anywhere.
Developers should use Google Cloud IAP Tunnel when they need to securely access GCP VM instances (e.g., for debugging, maintenance, or deployment) without setting up VPNs, bastion hosts, or public IP addresses, reducing attack surfaces. It's particularly useful in compliance-heavy environments (like healthcare or finance) where network isolation is critical, and for teams working remotely who require controlled access to internal resources. This tool simplifies secure access by handling authentication and encryption automatically through IAP.