added screenshot for viewing dns config

Author: flang-msft

articles/azure-cache-for-redis/cache-private-link.md

@@ -228,6 +228,8 @@ Currently, portal console support, and persistence to firewall storage accounts
 
 You can run a command like *nslookup* from within the VNet that is linked to the private endpoint. Use *nslookup* to verify that the command resolves to the private IP address for the cache. The private IP address is found by selecting your **Private endpoint** from your resources. On the resource menu on the left, select **DN configuration**. In the Working pane, you see the IP address for the **Network Interface**.
 
+:::image type="content" source="media/cache-private-link/cache-private-ip-address.png" alt-text="private endpoint dns settings":::
+
 ### How can I change my private endpoint to be disabled or enabled from public network access?
 
 There's a `publicNetworkAccess` flag that is `Disabled` by default.