---
title: Command Filtering for SSH/Telnet Proxy
slug: end-user-guide-3-5-0-legacy-ui/command-filtering-for-sshtelnet-proxy
description: Learn how Black key policy key enforcement works and how it alerts users with an informative message on their session window. Explore real-life examples of policy actions like Double Confirmation, Generate Error, Managerial Approval, and Location Confirma
docTags: 
createdAt: 2022-08-10T12:14:15.000Z
---

When Black key policy key enforcement is part of the defined policies, you will see an alert message in the session window.



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