# Enable or disable SSH access

Secure remote access to the engines is provided by the SSH daemon process. This process can be started and stopped remotely.

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For maximum security, we recommend disabling SSH access whenever it is not used.

Alternatively, you can enable and disable SSH access when logged on to the node.

SSH uses TCP port 22. Make sure that the connections are allowed in the policies of any Firewalls or Layer 2 Firewalls involved in the communications (including the Firewall or Layer 2 Firewall that you are trying to contact).

For more details about the product and how to configure features, click Help or press F1.

## Steps

1. Select Home.
2. Browse to Engines, then expand the nodes of the engine for which you want to enable or disable SSH access.
3. Right-click a node, then select Commands > Enable SSH or Commands > Disable SSH.

## Result

The SSH process is started or stopped on the engine.