This article provides some common knowledge about Nginx, a popular web server that is used to serve static content, reverse proxy, or load balance HTTP traffic. Here are some key takeaways:

• To install Nginx on Ubuntu, you need root privileges. After installation, Nginx can be run under a non-root user like "www-data".
• The default Nginx configuration file is located in /etc/nginx/nginx.conf.
• To start/stop/restart the Nginx service, use the systemctl command: sudo systemctl start/stop/restart nginx.
• To check whether Nginx is running or not, use: sudo systemctl status nginx.
• To configure Nginx for your specific use case, consult the official Nginx documentation or seek help from a qualified web developer or sysadmin.

Here are some resources that you can use to learn more about Nginx and how to configure it:

1. Official Nginx Documentation: https://nginx.org/en/docs/
2. Nginx Beginner's Guide: https://www.digitalocean.com/community/tutorials/nginx-ubuntu-18-04-ru
3. Nginx Configuration Primer: https://www.linode.com/docs/guides/nginx-configuration-primer/
4. NGINX 101 - The Basics & Beyond: https://www.nginx.com/resources/library/nginx-101-the-basics-beyond-online-training-course/
5. Stack Overflow: https://stackoverflow.com/questions/tagged/nginx

That's it! You should now have Nginx installed and running on your Ubuntu system.

Here are the steps to install and configure Nginx on Ubuntu:

1. Update Package Manager: Run the following command to update the package manager:

   sudo apt-get update
   

2. Install Nginx: Run the following command to install Nginx:

   sudo apt-get install nginx
   

3. Start Nginx: After installation, start the Nginx service using the following command:

   sudo systemctl start nginx
   

4. Enable Nginx at boot: To ensure that Nginx starts automatically whenever the system boots up, run the following command:

   sudo systemctl enable nginx
   

5. Verify Nginx is running: To check whether Nginx is running or not, run the following command:

   sudo systemctl status nginx
   

   If Nginx is running, you should see a message similar to the following:

   Active: active (running) since Fri 2021-10-01 13:28:18 UTC; 2min 32s ago
   

6. Configure Firewall: If you have a firewall enabled, make sure to allow HTTP traffic through it using the following command:

   sudo ufw allow 'Nginx HTTP'
   

7. Visit Nginx default page: Finally, open a web browser and navigate to http://<your_server_ip> to see the default Nginx welcome page.

Sure, here are some resources that you can use to learn more about Nginx and how to configure it:

1. Official Nginx Documentation: The official Nginx documentation is a great resource for learning about Nginx and its various features. You can find the documentation at https://nginx.org/en/docs/.

2. Nginx Beginner's Guide: This guide from DigitalOcean provides a good introduction to Nginx and covers basic configuration options. You can find the guide at https://www.digitalocean.com/community/tutorials/nginx-ubuntu-18-04-ru.

3. Nginx Configuration Primer: This article from Linode provides an overview of Nginx configuration files and explains how to set up a basic Nginx server block. You can find the article at https://www.linode.com/docs/guides/nginx-configuration-primer/.

4. NGINX 101 - The Basics & Beyond: This video course from NGINX Inc. provides a comprehensive introduction to Nginx, covering everything from installation and configuration to advanced features like load balancing and caching. You can access the course for free at https://www.nginx.com/resources/library/nginx-101-the-basics-beyond-online-training-course/.

5. Stack Overflow: If you have specific questions or issues related to Nginx, you can also try searching for answers on Stack Overflow, a popular Q&A site for developers. You can find Nginx-related questions and answers at https://stackoverflow.com/questions/tagged/nginx.