Added a new table row to the allow list for Web proxy URL

Author: LouisBerner

articles/databox-online/azure-stack-edge-pro-2-system-requirements.md

@@ -7,7 +7,7 @@ author: alkohli
 ms.service: databox
 ms.subservice: edge
 ms.topic: conceptual
-ms.date: 11/15/2022
+ms.date: 03/17/2023
 ms.author: alkohli
 ---
 

includes/azure-stack-edge-gateway-url-patterns-firewall.md

@@ -2,7 +2,7 @@
 author: alkohli
 ms.service: databox  
 ms.topic: include
-ms.date: 12/06/2022
+ms.date: 03/17/2023
 ms.author: alkohli
 ---
 
@@ -17,5 +17,6 @@ ms.author: alkohli
 |    http://\*.data.microsoft.com     |    Telemetry service in Windows, see the update for customer experience and diagnostic telemetry |
 |    `http://<vault-name>.vault.azure.net:443`     |    Key Vault |
 |    `https://azstrpprod.trafficmanager.net/*`    |Remote Management  |
+|   https://www.msftconnecttest.com/connecttest.txt  |    Required for web proxy test/validation. URL is used to validate connectivity before applying the configuration.  | 
 <!--|    http://www.msftconnecttest.com/connecttest.txt  |    For diagnostics     ||  |-->