> ## Documentation Index
> Fetch the complete documentation index at: https://docs.levelblue.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Tenable Sensor Deployment for Azure
**To deploy the Tenable sensor for Microsoft Azure**
1. Log into [Microsoft Marketplace](https://marketplace.microsoft.com/en-us/), and search for **Tenable**.
2. Select **Tenable Core + Tenable Nessus (BYOL)**.
3. Click **Create**.
4. Enter a **Virtual Machine Name**, and review the populated information.
5. Click **Review + Create**.
6. Adjust the rest of the configuration according to the VM's authentication method.
7. Once the validation is passed, you may proceed to create the VM.
8. Wait until the deployment is complete.
9. Take note of the **Public** and **Private IP** addresses of the deployed VM.
10. Connect to the Tenable sensor via SSH.
11. Log into [cloud.tenable.com](http://cloud.tenable.com) to get the Linking Key.
12. Click the burger menu, and then select **Settings**.
13. Select **Sensors**.
14. Click **Add Nessus Scanner** to view the Linking Key.
15. Copy the **Linking Key**.
16. In the Tenable sensor CLI, use the Linking Key to link the Tenable sensor.
```text theme={null}
sudo /opt/nessus/sbin/nessuscli managed link --key=”Linking Key” –cloud
```
Once done, you should see a "**Successfully linked**" message.
17. Return to the Tenable cloud page, and verify that the Tenable sensor is linked correctly and is in **Online** status.
**VERIFICATION / TROUBLESHOOTING**
* If the sensor does not link properly:
* Re-check the outbound TCP 443 access to [sensor.cloud.tenable.com](http://sensor.cloud.tenable.com) and [plugins.nessus.org](http://plugins.nessus.org).
* Make sure the Linking Key is correct and not expired.
* If the scans do not find hosts:
* Confirm that the scanner can reach the target network (routing, security groups/NSGs, and target host firewalls).
* For credential scans, confirm that the credentials work and the required auth ports are reachable.