Update documentation (trailofbits#14404)

README.md

@@ -35,7 +35,10 @@ The easiest way to get an Algo server running is to run it on your local system
 
     - Download the [ZIP file](https://github.com/trailofbits/algo/archive/master.zip). Unzip the file to create a directory named `algo-master` containing the Algo scripts.
 
-    - Run the command `git clone https://github.com/trailofbits/algo.git` to create a directory named `algo` containing the Algo scripts.
+    - Use `git clone` to create a directory named `algo` containing the Algo scripts:
+        ```bash
+        git clone https://github.com/trailofbits/algo.git
+        ```
 
 3. **Install Algo's core dependencies.** Algo requires that **Python 3.8 or later** and at least one supporting package are installed on your system.
 
@@ -55,15 +58,11 @@ The easiest way to get an Algo server running is to run it on your local system
             sudo apt install -y --no-install-recommends python3-virtualenv
             ```
             On a Raspberry Pi running Ubuntu also install `libffi-dev` and `libssl-dev`.
+
         * Fedora:
             ```bash
             sudo dnf install -y python3-virtualenv
             ```
-        * Red Hat and CentOS 7 and later (for earlier versions see this [documentation](docs/deploy-from-redhat-centos6.md)):
-            ```bash
-            sudo yum -y install epel-release
-            sudo yum -y install python36-virtualenv
-            ```
 
     - **Windows:** Use the Windows Subsystem for Linux (WSL) to create your own copy of Ubuntu running under Windows from which to install and run Algo. See the [Windows documentation](docs/deploy-from-windows.md) for more information.
 
@@ -74,7 +73,7 @@ The easiest way to get an Algo server running is to run it on your local system
       python3 -m pip install -U pip virtualenv &&
       python3 -m pip install -r requirements.txt
     ```
-    On Fedora add the option `--system-site-packages` to the first command above. On macOS install the C compiler if prompted.
+    On Fedora first run `export TMPDIR=/var/tmp`, then add the option `--system-site-packages` to the first command above (after `python3 -m virtualenv`). On macOS install the C compiler if prompted.
 
 5. **Set your configuration options.** Open the file `config.cfg` in your favorite text editor. Specify the users you wish to create in the `users` list. Create a unique user for each device you plan to connect to your VPN. If you want to add or delete users later, you **must** select `yes` at the `Do you want to retain the keys (PKI)?` prompt during the server deployment. You should also review the other options before deployment, as changing your mind about them later [may require you to deploy a brand new server](https://github.com/trailofbits/algo/blob/master/docs/faq.md#i-deployed-an-algo-server-can-you-update-it-with-new-features).
 

docs/deploy-from-windows.md

@@ -21,7 +21,7 @@ Wait a minute for Windows to install a few things in the background (it will eve
 2. Click on 'Turn Windows features on or off'
 3. Scroll down and check 'Windows Subsystem for Linux', and then click OK.
 4. The subsystem will be installed, then Windows will require a restart.
-5. Restart Windows and then [install Ubuntu 18.04 LTS from the Windows Store](https://www.microsoft.com/p/ubuntu-1804-lts/9n9tngvndl3q) (at this time Ubuntu 20.04 LTS does not work with Algo when running under WSL).
+5. Restart Windows and then install [Ubuntu 20.04 LTS from the Windows Store](https://www.microsoft.com/p/ubuntu-2004-lts/9n6svws3rx71).
 6. Run Ubuntu from the Start menu. It will take a few minutes to install. It will have you create a separate user account for the Linux subsystem. Once that's done, you will finally have Ubuntu running somewhat integrated with Windows.
 
 ## Install Algo

docs/deploy-to-ubuntu.md

@@ -1,5 +1,11 @@
 # Local Installation
 
+**PLEASE NOTE**: Algo is intended for use to create a _dedicated_ VPN server. No uninstallation option is provided. If you install Algo on an existing server any existing services might break. In particular, the firewall rules will be overwritten. See [AlgoVPN and Firewalls](/docs/firewalls.md) for more information.
+
+------
+
+## Outbound VPN Server
+
 You can use Algo to configure a pre-existing server as an AlgoVPN rather than using it to create and configure a new server on a supported cloud provider. This is referred to as a **local** installation rather than a **cloud** deployment. If you're new to Algo or unfamiliar with Linux you'll find a cloud deployment to be easier.
 
 To perform a local installation, install the Algo scripts following the normal installation instructions, then choose:
@@ -8,11 +14,9 @@ Install to existing Ubuntu 18.04 or 20.04 server (for more advanced users)
 ```
 Make sure your target server is running an unmodified copy of the operating system version specified. The target can be the same system where you've installed the Algo scripts, or a remote system that you are able to access as root via SSH without needing to enter the SSH key passphrase (such as when using `ssh-agent`).
 
-# Road Warrior setup
+## Inbound VPN Server (also called "Road Warrior" setup)
 
 Some may find it useful to set up an Algo server on an Ubuntu box on your home LAN, with the intention of being able to securely access your LAN and any resources on it when you're traveling elsewhere (the ["road warrior" setup](https://en.wikipedia.org/wiki/Road_warrior_(computing))). A few tips if you're doing so:
 - Make sure you forward any [relevant incoming ports](/docs/firewalls.md#external-firewall) to the Algo server from your router;
 - Change `BetweenClients_DROP` in `config.cfg` to `false`, and also consider changing `block_smb` and `block_netbios` to `false`;
 - If you want to use a DNS server on your LAN to resolve local domain names properly (e.g. a Pi-hole), set the `dns_encryption` flag in `config.cfg` to `false`, and change `dns_servers` to the local DNS server IP (i.e. `192.168.1.2`).
-
-**PLEASE NOTE**: Algo is intended for use to create a _dedicated_ VPN server. No uninstallation option is provided. If you install Algo on an existing server any existing services might break. In particular, the firewall rules will be overwritten. See [AlgoVPN and Firewalls](/docs/firewalls.md) for more information.