Updates

Author: madeline-underwood

content/learning-paths/servers-and-cloud-computing/cobalt/1-create-cobalt-vm.md

@@ -20,14 +20,17 @@ To create a Cobalt 100 VM, follow these steps:
 
 1. Sign in to the [Azure Portal](https://portal.azure.com/).
 2. Select **Create a resource → Compute → Virtual machine**.
-3. Complete the **Basics** tab as shown in the figure below:
+3. Complete the fields in the **Basics** tab with the values shown in the figure below:
+
    ![Azure Portal – Basics tab for the VM wizard#center](images/create-cobalt-vm.png "Configuring the Basics tab")
-   Cobalt 100 powers the Dpsv6-series. Selecting **Standard_D4ps_v6** creates a Cobalt VM with four physical cores. You can select a different size if you need more or fewer cores.
+   
+   Cobalt 100 powers the Dpsv6-series. Selecting **Standard_D4ps_v6** creates a Cobalt VM with four physical cores. 
+   You can choose a different size if you need more or fewer cores.
 4. Upload your public SSH key or generate a new one in the wizard.
-5. For **Public inbound ports**, select **None**.
+5. For the **Public inbound ports** field, select **None**.
 6. On the **Disks** tab, accept the default options.
-7. On the **Networking** tab, ensure that a **Public IP** is selected. You will need it to connect later. Leave the NSG settings as **Basic** for now. 
+7. On the **Networking** tab, ensure that a **Public IP** is selected. You will need it to connect to the VM later. Leave the NSG settings as **Basic**. 
 
-Click **Review + create** followed by **Create**. Azure now deploys the VM and the automatically-generated Network Security Group (NSG). Provisioning takes ~2 minutes.
+8. Select **Review + create**, then **Create**. Azure now deploys the VM and the automatically-generated Network Security Group (NSG). Provisioning takes ~2 minutes.
 
-Navigate to the **Deployment in progress** pane or open the **Notifications** panel to track progress. When the deployment succeeds, proceed to the next step to expose an inbound port.
+9. Navigate to the **Deployment in progress** pane or open the **Notifications** panel to track progress. When the deployment succeeds, proceed to the next step to expose an inbound port.

content/learning-paths/servers-and-cloud-computing/cobalt/2-open-port.md

@@ -10,14 +10,17 @@ layout: learningpathall
 
 Every new virtual machine created through the Azure wizard is associated with a **Network Security Group (NSG)**. An NSG acts as a stateful firewall – if no rule explicitly allows traffic, Azure blocks it by default.
 
-In this step you will open port 22 for SSH, as well as port 8080 so that a web application running on the VM is reachable from your IP for testing. Substitute a different port if required by your workload, or a different IP range if you'd like broader accessibility.
+In this step, you'll open port 22 for SSH and port 8080 so that a web application running on the VM is reachable from your IP for testing. Substitute a different port if required by your workload, or a different IP range if you'd like broader accessibility.
 
-1. In the Azure Portal, open the newly created VM resource and click **Networking → Network settings** in the left nav.
+1. In the Azure Portal, open the newly-created VM resource and select **Networking → Network settings** from the left-hand menu.
 2. Select the **Network security group**.
-3. Click on **Create Port Rule** and from the drop-down menu select **Inbound port rule**
-4. Fill in the form, specifying **My IP address** as the source and 22 as the destination port:
+3. Select **Create Port Rule**, then choose **Inbound port rule** from the drop-down menu.
+
+4. Fill in the form with **My IP address** as the source and 22 as the destination port:
+
    ![Add inbound security rule with source of my IP and destination port 22#center](images/create-nsg-rule.png)
-5. Click **Add**.
-To open port 8080, follow steps 3 through 5 again, but instead choose port 8080 for the destination port.
 
-You have now opened ports 22 and 8080 to your IP. In the next step, you will verify connectivity.
+5. Select **Add**.
+To open port 8080, repeat steps 3-5 and enter 8080 as the destination port.
+
+You have now opened ports 22 and 8080 to your IP. In the next step, you will verify connectivity from your local machine.

content/learning-paths/servers-and-cloud-computing/cobalt/3-verify-connectivity.md

@@ -8,20 +8,20 @@ layout: learningpathall
 
 ## Connect over SSH and test the open port
 
-1. On the **Overview** page for the VM copy the **Public IP address**.
+1. On the **Overview** page of the VM, copy the **Public IP address**.
 2. Open a terminal on your local machine and SSH to the VM (replace *azureuser* if you chose a different admin username):
 
 ```bash
 ssh -i [path to your pem file] azureuser@[public IP]
 ```
 
-Where `[public IP]` is your public IP and `[path to your pem file]` is the path to your SSH key file.
+Replace `[public IP]` with your VM's public IP address, and `[path to your pem file]` with the path to your SSH private key file.
 
-Accept the prompt to add the host to *known_hosts* the first time you connect.
+When prompted, confirm the connection to add the VM to your *known_hosts* file.
 
-### Start a simple HTTP server
+### Start a temporary HTTP server
 
-If you do not already have an application listening on TCP 8080 you can start one temporarily:
+If you don't already have an application listening on TCP 8080, you can start one temporarily:
 
 ```bash
 sudo apt update -y && sudo apt install -y python3
@@ -32,16 +32,18 @@ Leave this terminal open – the server runs in the foreground.
 
 ### Test from your local machine
 
-In a second local terminal run `curl` to confirm you can reach the server through the NSG rule you created:
+In a second local terminal run `curl` to confirm that you can reach the server through the NSG rule you created:
 
 ```bash
 curl http://[public IP]:8080
 ```
 
-Where `[public IP]` is your public IP.
+Replace `[public IP]` with your VM's public IP address.
 
-You should see an HTML directory listing (or your application response). Receiving a response verifies that TCP 8080 is open and the VM is reachable from the public internet.
+You should see an HTML directory listing (or your application response). A successful response confirms that TCP port 8080 is open and the VM is reachable from the public internet.
 
-Terminate the Python server when you are finished testing (press `Ctrl + C`).
+To stop the server, press `Ctrl + C`.
 
-You now have an Arm-based Cobalt 100 VM with an exposed port 8080 that you can use to run any test server. To learn about optimizing .NET workloads on Cobalt, check out [Migrating a .NET application to Azure Cobalt](../../dotnet-migration/).
+You now have an Arm-based Cobalt 100 VM with port 8080 open and ready to receive external traffic. You can use it to run any test server or deploy your own application. 
+
+To learn about optimizing .NET workloads on Cobalt, check out [Migrating a .NET application to Azure Cobalt](../../dotnet-migration/).