How to Fix Random Nginx Reverse Proxy Configuration Reset on Plex Managed Subdomain

How to Fix Random Nginx Reverse Proxy Configuration Reset on Plex Managed Subdomain

If you are experiencing random Nginx reverse proxy configuration resets on your Plex managed subdomain, you are not alone. This issue can be frustrating, but don't worry! In this article, we will guide you through the troubleshooting steps to fix this problem and ensure your Plex server runs smoothly.

Understanding the Issue

Before we dive into the solution, let's understand why this problem occurs. When using Plex with a managed subdomain, Nginx acts as a reverse proxy to redirect incoming requests to the Plex server. However, sometimes the Nginx configuration file responsible for this redirection may reset randomly, causing your subdomain to stop working.

Step 1: Backup Your Nginx Configuration

Before making any changes, it's essential to create a backup of your Nginx configuration file. This will allow you to revert to the previous working state if anything goes wrong. To back up the configuration, follow these steps:

1. Access your server via SSH using a terminal or SSH client.
2. Locate the Nginx configuration file. Typically, it is located at /etc/nginx/nginx.conf or /etc/nginx/sites-available/default.
3. Copy the configuration file to a safe location using the following command:
   sudo cp /etc/nginx/nginx.conf /path/to/backup/nginx.conf

Step 2: Disable Automatic Nginx Configuration Updates

To prevent Nginx from automatically updating the configuration file, you need to disable the automatic updates. Here's how you can do it:

1. Access your server via SSH.
2. Open the Nginx configuration file using a text editor:
   sudo nano /etc/nginx/nginx.conf
3. Locate the line that includes the include directive for the Plex configuration. It may look like:
   include /etc/nginx/conf.d/plex.conf;
4. Comment out this line by adding a # at the beginning:
   #include /etc/nginx/conf.d/plex.conf;
5. Save the changes and exit the text editor.

Step 3: Create a Custom Nginx Configuration File

Now, we will create a custom Nginx configuration file that won't be affected by automatic updates. Follow these steps:

1. Access your server via SSH.
2. Create a new directory to store your custom configuration file:
   sudo mkdir /etc/nginx/custom
3. Open a new configuration file in the custom directory:
   sudo nano /etc/nginx/custom/plex.conf
4. Add the following configuration to the file:
   server { listen 80; server_name yoursubdomain.example.com; location / { proxy_pass http://localhost:32400; } }
5. Save the changes and exit the text editor.

Step 4: Update Nginx Configuration

Now that we have our custom configuration file, we need to tell Nginx to use it. Follow these steps:

1. Access your server via SSH.
2. Open the Nginx default configuration file:
   sudo nano /etc/nginx/nginx.conf
3. Locate the line that includes the include directive for Plex configuration.
4. Replace the line with the path to your custom configuration file:
   include /etc/nginx/custom/plex.conf;
5. Save the changes and exit the text editor.

Step 5: Restart Nginx

Finally, we need to restart Nginx for the changes to take effect. Execute the following command:

sudo service nginx restart

After restarting Nginx, your Plex managed subdomain should now work consistently without any random configuration resets.

Conclusion

By following these steps, you should be able to fix the issue of random Nginx reverse proxy configuration resets on your Plex managed subdomain. Remember to always backup your configuration files before making any changes, and be cautious while editing them. If you encounter any difficulties, it's recommended to seek assistance from a knowledgeable person or consult the Nginx documentation.