Your Realm server instances are clustered behind a floating virtual IP (VIP) or a layer-7 gateway. Downstream clients connect to the cluster, not a single host. The cluster uses a distributed consensus (e.g., via etcd or a simple heartbeat + realm-ha-controller ) to decide which node currently owns the tunnel's state.
Key metrics for HA:
Save the settings and tap "Start" to establish the connection.
It masks regular internet traffic as legitimate, unrestricted network handshakes.
: For businesses with remote workers or those that need secure access to cloud services, the Realm Host V2 HA Tunnel provides a secure pathway for remote access.
The setting is an advanced feature found within the "Custom SNI" mode. While standard SNI settings simply point the connection to a specific host, Realm Host V2 adds a layer of depth by allowing the tunnel to interact with a specific realm address (such as site1.blogstar.net ). This often helps in:
Your local Realm client maintains two simultaneous TLS connections to two different backend servers (Server A & Server B). If Server A responds with 5xx or a connection timeout, Realm V2 automatically fails over to Server B without dropping the outer TCP session.