# Monitor Outbound Domains

Zen Firewall by Aikido allows you to monitor outbound domains and IP addresses.

### Use Cases <a href="#use-cases" id="use-cases"></a>

* **Detection of Shadow IT:** are developers knowingly or unknowingly sharing production data with 3rd parties (eg [api.openai.com](http://api.openai.com) )
* **PII Leakage**: Avoid accidental leakage of PII or sensitive data to 3rd parties
* **Compliance:** Map existing data streams for compliance.

> When you have setup Zen, outbound domain monitoring works **out-of-the-box.**

### Future <a href="#future" id="future"></a>

* Block certain outbound domains so app is safe against SSRF
* PII leakage to unsanctioned 3rd party services

### How to monitor your outbound domains <a href="#how-to-monitor-your-outbound-domains" id="how-to-monitor-your-outbound-domains"></a>

Select a specific app and continue to the Outbound Domains tab. You will get a full overview of all outbound domains.

![Demo App outbound domains table showing hostnames, ports, and last seen times.](/files/DHZAlrXdfGJqEWbGNUYJ)

### Get notified when new outbound domains were detected <a href="#get-notified-when-new-outbound-domains-were-detected" id="get-notified-when-new-outbound-domains-were-detected"></a>

Knowing when your apps connect to new external destinations is crucial for security and oversight. Get alerted whenever an application makes an outbound connection to a hostname it hasn't contacted before.

To receive these alerts, go to the [**Services Overview**](https://app.aikido.dev/runtime/services) and click **Manage Alerts**. Find and enable the setting **"Send notifications for new outbound hostnames"**. On this same page, you can also fine-tune which specific apps trigger these alerts and choose your preferred Slack or Microsoft Teams channels.

![Configure Slack alerts by selecting apps, channel, and notification preferences for instant alerts.](/files/ef0mEHo1Qyf3Qx7L3VEY)


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