makes minor revs to ops setup + adds ssh install (#187)

Author: ewhd

ops-setup/1-update.md

@@ -30,4 +30,4 @@ sudo apt upgrade
 
 ---
 
-### [⇐ Previous](../README.md) | [Next ⇒](./2-rdp.md)
+### [⇐ Previous](../README.md) | [Next ⇒](./2-remote-access.md)

ops-setup/2-rdp.md

@@ -0,0 +1,42 @@
+# Ops Setup
+
+## Configure Remote Access
+Now, let's configure your lab so that you can access its Graphical User Interface (called a GUI) from your home computer over your home network.
+
+To do this we will first install a software package called `ssh`, which will give us access this Terminal on your lab computer from your home computer, allowing us to run commands just like we are now.
+
+Second, we will install `xrdp`, which uses the Remote Desktop Protocol (often shortened to RDP), then set it to run automatically when the computer boots up.
+
+Finally, we will configure the firewall to allow this network traffic.
+
+### Install The `ssh` Software Package:
+```bash
+sudo apt install ssh -y
+```
+> Note: The `-y` option bypasses an "Are you sure?" prompt.
+
+### Install The `xrdp` Software Package:
+```bash
+sudo apt install xrdp -y
+```
+
+### Set `xrdp` To Run Automatically
+This will tell the computer to run `xrdp` whenever the computer boots up, ensuring that when you reboot, you'll still be able to connect remotely.
+```bash
+sudo systemctl enable --now xrdp
+```
+> Note: `ssh` is enabled and started automatically when it is installed, so we do not need to enable it like this.
+
+### Create Firewall Rules
+This instructs the firewall application to create rules allowing all traffic coming and going over network port 22 (used for SSH connections) and port number 3389 (used for RDP connections).
+
+```bash
+sudo ufw allow from any to any port 22 proto tcp
+```
+
+```bash
+sudo ufw allow from any to any port 3389 proto tcp
+```
+---
+
+### [⇐ Previous](./1-update.md) | [Next ⇒](./3-rdp-config.md)

ops-setup/2-remote-access.md

@@ -4,6 +4,8 @@
 
 Adjust settings for RDP (Remote Desktop Protocol). These steps will make your remote-connection sessions easier.
 
+>  Note: Some of these commands run silently! If they execute successfully they will not return anything to the screen. If they fail then you should receive an error message.
+
 ### Get regular gnome experience over RDP
 Copy and run each of these commands in the terminal:
 
@@ -14,7 +16,7 @@ sudo sed -i '4 i\export XDG_CURRENT_DESKTOP=ubuntu:GNOME' /etc/xrdp/startwm.sh
 sudo sed -i '4 i\export GNOME_SHELL_SESSION_MODE=ubuntu' /etc/xrdp/startwm.sh
 ```
 ```bash
-sudo sed -i '4 i\export DESKTOP_SESSION=ubuntu' /etc/xrdp/startwm.sh```
+sudo sed -i '4 i\export DESKTOP_SESSION=ubuntu' /etc/xrdp/startwm.sh
 ```
 
 ### Remove "color profile authentication" popup in XRDP
@@ -53,4 +55,4 @@ EOL
 ```
 ---
 
-### [⇐ Previous](./2-rdp.md) | [Next ⇒](./4-virtualbox.md)
+### [⇐ Previous](./2-remote-access.md) | [Next ⇒](./4-virtualbox.md)

ops-setup/3-rdp-config.md

@@ -22,6 +22,8 @@ sudo apt install virtualbox -y
 sudo apt install virtualbox-ext-pack -y
 ```
 
+> Note: Installing the extension pack will launch a special installer box within the Terminal, which will require you to confirm your choice. If you can't use your arrows to navigate this box, try using \<Tab\> to change your selection and \<Space\> to mark or un-mark a selection.
+
 ### Create a shortcut to Virtualbox
 ```bash
 gsettings set org.gnome.shell favorite-apps "$(gsettings get org.gnome.shell favorite-apps | sed s/.$//), 'virtualbox.desktop']"