> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/cortex-xsoar-8-on-prem/8.13/install-cortex-xsoar/post-installation/optimize-performance-and-robustness-from-the-textual-ui.md).

# Optimize performance and robustness from the textual UI

Optimize Cortex XSOAR 8.13 On-prem from the textual UI.

Once Cortex XSOAR is installed, you can perform system performance optimization tasks from the textual UI, for example:

* Set up an external load balancer.
* Add or remove nodes from a cluster.
* Scale up hardware resources.
* Auto-expand PVC volumes.

**How to access the textual UI menu**

To access the textual UI menu, log in from the VM web console or from an external terminal using the `ssh admin@<server ip address>` command to SSH log in.

{% hint style="warning" %}
If you lose the SSH password, you cannot recover or change it. To use SSH you will need to redeploy the VM.
{% endhint %}

For example:

![opp-oci-cloud-shell.png](https://3790991131-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FvksWgzvBZ9ZvAg4dGLrH%2Fuploads%2Fgit-blob-d1da41c20d768f7720ef36c439ae0d522a6a22a0%2F8882a5b3f9f36faccf78cb1d4e17d376b26a47224f7c49c0cfe4b92b93f1e52a.png?alt=media)

The textual UI menu opens with all the configuration and maintenance options.

{% hint style="info" %}

* To start using the textual UI, click anywhere on the screen.
* To navigate between the menu items, use the up and down arrow keys. To select a menu item, press the Enter key.
* To navigate between fields within a menu item, use the Tab key. To save settings, tab to the **Save** button and press the Enter key.
* To go back to the menu from a specific menu item field, press the **esc** key.
  {% endhint %}


---

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