Ubuntu Proxy Server Setup: Step-by-Step

To set up a proxy server on Ubuntu, you can follow these steps:

1. Install the Squid proxy server: Run the following command in the terminal to install Squid:
2. Update the system and install squid using the following commands:
   sudo apt update
   sudo apt install squid
3. Configure Squid proxy server: Open the Squid configuration file.
4. Open the squid.conf file using the nano text editor with superuser privileges.
5. In the document, you can make the following configurations as needed:
6. Establish access control rules: You can define rules for allowing or denying access to the proxy server by adding acl and http_access entries.
7. Configure the listening port: By default, the Squid proxy server listens on port 3128, but you can modify it as needed.
8. Configure cache settings: You can adjust parameters such as cache size and cache directory.
9. Other configurations: Based on your needs, you can also customize other parameters such as authentication, logging, etc.
10. Save and exit the configuration file, then restart the Squid service.
11. Please restart the squid service using systemctl.
12. Check if the proxy server is working properly by running the following command in the terminal:
13. Set the HTTP proxy to the IP address and port of the proxy server, then use the curl command to access https://www.yisu.com.
14. If everything is working properly, you should be able to see the content on the Ispeed Cloud page.

Please note that this is just a basic proxy server configuration, which can be further adjusted and optimized as needed.