add Linux server installation guide for open.mp

Author: itsneufox

docs/server/LinuxServerInstallation.md

@@ -0,0 +1,191 @@
+**This guide contains a comprehensive guide on installing an open.mp server on Ubuntu or another Debian based Linux.
+Whether you're a beginner or just looking to refresh your knowledge, this guide may have something useful for you!**
+
+:::warning
+
+If you are using the SA:MP server and didn't convert to open.mp yet, **[please stop here and read this guide first.](https://www.open.mp/docs/server/Installation)**
+
+:::
+
+
+:::note
+
+If you are using the FCNPC plugin, please stop for now because this plugin does not work for open.mp currently.
+
+:::
+
+## Prerequisites
+Before starting, you should have:
+- A machine running Ubuntu (20.04 or later recommended) or another Debian based Linux;
+- WinSCP or Filezilla for file transfers;
+- PuTTY or your hosting SSH solution;
+
+:::note
+
+If you install WinSCP, the installer will prompt you to install PuTTY!
+It's up to you if you want to install it or not, but you can always download it later!
+
+:::
+
+## Phase 1: Preparing the Environment
+
+1. Connecting via SSH:
+   - Use PuTTY or your hosting SSH solution to connect to your instance.
+
+:::note
+
+Seek online guides or your hosting provider's documentation if you're unsure how to connect to your Linux Instance.
+
+:::
+
+2. Updating your Linux Instance:
+   - Before proceeding, let's ensure your system is up to date by running:
+
+   ```
+   sudo apt update
+   ```
+   ```
+   sudo apt upgrade
+   ```
+
+3. Creating a secure service account:
+   - For security reasons, we should create a dedicated service account without a home directory:
+
+   ```
+   sudo useradd -M svc-omp-server
+    ```
+
+4. Locking the service sccount:
+   - Let's prevent the service account from being used for login:
+
+   ```
+   sudo usermod -L svc-omp-server
+   ```
+
+5. Creating a directory for the server files:
+   - We will use the /opt directory, this is the standard location for third-party applications:
+
+   ```
+   sudo mkdir /opt/omp-server
+   ```
+
+6. Setting permissions for the directory:
+   - Changing the group of the directory to match the service account:
+
+   ```
+   sudo chgrp svc-omp-server /opt/omp-server
+   ```
+
+   - Setting the g+s flag so new files inherit the correct group and remove access for others:
+
+   ```
+   sudo chmod g+s /opt/omp-server
+   ```
+   ```
+   sudo chmod o-rwx /opt/omp-server
+   ```
+
+<hr />
+
+## Phase 2: Installing open.mp Server Files
+
+7. Let's navigate to the server directory:
+   - We need to move to the /opt/omp-server directory where the server will be stored:
+
+   ```
+   cd /opt/omp-server
+   ```
+
+8. Downloading the open.mp server files:
+   - Download the latest release of the open.mp server:
+
+   ```
+   sudo -u svc-omp-server wget https://github.com/openmultiplayer/open.mp/releases/download/vX.X.X.XXXX/open.mp-linux-x86.tar.gz
+   ```
+
+:::warning
+
+**You should ALWAYS check for the latest release at the open.mp GitHub Releases page!**
+[https://github.com/openmultiplayer/open.mp/releases](https://github.com/openmultiplayer/open.mp/releases)
+
+:::
+
+9. Extracting the server files:
+   - Once downloaded, extract the files:
+
+   ```
+   sudo -u svc-omp-server tar -xzf open.mp-linux-x86.tar.gz
+   ```
+
+<hr />
+
+## Phase 3: Configuring and Starting the Server
+
+10. Installing the required x86 libraries:
+    - Since the server runs as a 32-bit application, you need to enable 32-bit architecture support:
+
+    ```
+    sudo dpkg --add-architecture i386
+    ```
+    ```
+    sudo apt update
+    ```
+    ```
+    sudo apt install libc6:i386
+    ```
+
+11. Making the server executable:
+    - Change the permissions so the server can be executed (only required once!):
+
+    ```
+    cd /opt/omp-server/Server/
+    ```
+
+    ```
+    sudo chmod +x omp-server
+    ```
+
+12. Starting the server:
+    - Use the following command to start the server in the background:
+
+    ```
+    nohup ./omp-server &
+    ```
+
+    - The terminal will output a process ID (PID). Write this number down for future reference.
+
+<hr />
+
+## Phase 4: Managing the Server
+
+13. Stopping the server:
+    - To stop the server, use the PID from step 12 and run:
+
+    ```
+    sudo kill <PID>
+    ```
+
+14. Finding the Process ID (if forgotten):
+
+    - If you forget the process ID, run:
+
+    ```
+    top
+    ```
+
+    - Look for the omp-server process in the list, note the PID, press 'Q' to quit, and then kill the process as shown in step 13.
+
+<hr />
+
+## Phase 5: Uploading Your Gamemode and Files
+
+15. Upload your custom gamemodes and scripts:
+    - Use WinSCP or Filezilla to transfer your gamemodes and scripts to the /opt/omp-server directory.
+    Important: Make sure to use .so files for Linux plugins, as .dll files are only supported on Windows.
+
+
+## Help
+
+If you're still experiencing issues setting up the server, join the official open.mp Discord server: [https://discord.gg/samp](https://discord.gg/samp) 
+
+Post your question in the [#openmp-support](https://discord.com/channels/231799104731217931/966398440051445790) channel and mention this guide so we can improve it.