# Persistent Reverse SSH Tunnel

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### Overview <a href="#overview" id="overview"></a>

It may be necessary to create a connection into a target system which blocks ingress connections or is behind a firewall, particularly if you cannot install Keeper Connection Manager on a device within the target network.&#x20;

For this use case, Keeper Connection Manager supports the use of reverse SSH tunnels. This guide provides a method of setting up a reverse SSH tunnel to access a system that is otherwise inaccessible due to inbound network restrictions.&#x20;

This guide covers reverse SSH tunnels using the Auto Docker Install method and a target endpoint. Once the tunnel and configuration is complete, Keeper Connection Manager can establish a connection to the remote endpoint through the tunnel.  You can use any supported connection within the tunnel, one established.

* [AutoSSH as a Windows Service](/en/keeper-connection-manager/supported-protocols/persistent-reverse-ssh-tunnel/connecting-via-reverse-ssh-tunnel.md)
* [Linux - AutoSSH](/en/keeper-connection-manager/supported-protocols/persistent-reverse-ssh-tunnel/connecting-via-reverse-ssh-tunnel-1.md)
* [Windows - OpenSSH](/en/keeper-connection-manager/supported-protocols/persistent-reverse-ssh-tunnel/connecting-via-reverse-ssh-tunnel-2.md)

### Using KeeperPAM instead of Reverse SSH Tunnels

Keeper's cloud-based product called KeeperPAM provides zero-trust encrypted connections through the Keeper vault. This eliminates the need for reverse SSH tunnels.

* [KeeperPAM Website](https://www.keepersecurity.com/privileged-access-management/)
* [KeeperPAM Product Documentation](/en/keeperpam/readme.md)


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