first round of changes

windows/deployment/do/mcc-isp-verify-cache-node.md

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+# Verify cache node functionality
+
+### Verify client side
+
+Sign in to the Connected Cache server or use SSH. Run the following command from a terminal to see the running modules (containers):
+
+```bash
+sudo iotedge list
+```
+
+If the cache server is running properly, you will see the containers **edgeAgent**, **edgeHub**, and **[Your Cache Node name]** listed, all with the status **running**.
+
+If it lists the **edgeAgent** and **edgeHub** containers, but doesn't include **MCC**, view the status of the IoT Edge security manager using the command:
+
+```bash
+sudo journalctl -u iotedge -f
+```
+
+This command provides the current status of the starting and stopping of a container or the container pull and start.
+
+### Verify server side
+
+It can take a few minutes for the container to deploy.
+
+To validate a properly functioning MCC, run the following command in the terminal of the cache server or any device in the network. Replace `<CacheServerIP>` with the IP address of the cache server.
+
+```bash
+wget http://<CacheServerIP>/mscomtest/wuidt.gif?cacheHostOrigin=au.download.windowsupdate.com
+```
+
+If successful, you will see a terminal output similar to the following:
+
+```bash
+HTTP request sent, awaiting response... 200 OK
+Length: 969710 (947K) [image/gif]
+Saving to: 'wuidt.gif?cacheHostOrigin=au.download.windowsupdate.com'
+
+wuidt.gif?cacheHostOrigin=au.download.windowsupdate.com   100%[========================]
+```
+
+:::image type="content" source="images/imcc28.png" alt-text="Terminal output of successful test result with wget command to validate a MCC.":::
+
+Similarly, enter the following URL into a web browser on any device on the network:
+
+```http
+http://<CacheServerIP>/mscomtest/wuidt.gif?cacheHostOrigin=au.download.windowsupdate.com
+```
+
+If the test fails, for more information, see the [common issues](#common-issues) section.