Fair Proxy

Using the Internet in normal mode leads to loss of anonymity. In this case, the computer connects directly to the servers of sites and applications, recognizing the personal IP address and other confidential information. The use of redirecting proxy servers protects against all these unwanted consequences and allows you to bypass potential blocking. In order to take advantage of proxy servers of several types and varieties, it is necessary to install them properly.

You can bypass the blocking of the messenger by using the built-in proxy server in the application. To do this, go to "Settings" and then to the section "Data and storage". Here, in the "Proxy settings" tab, you will find the "Add proxy" item. A shield icon on the top line of the menu will indicate that the proxy is enabled.

It seems there might be a confusion in your request. Polly is a resilience and transient-fault-handling library in C# for dealing with issues like network failures, timeouts, and other transient errors. It is not directly related to parsing courses or web scraping.

If you are looking to parse a course from a website using C#, you might want to use a combination of HTTP requests and HTML parsing libraries. Here's a basic example using the HtmlAgilityPack library for HTML parsing and HttpClient for making HTTP requests

Install HtmlAgilityPack:

You can install the HtmlAgilityPack library using NuGet Package Manager Console:

Install-Package HtmlAgilityPack

Example Code

Here's a simple example of how you might use HttpClient and HtmlAgilityPack to parse course information from a website:

using System;
using System.Net.Http;
using HtmlAgilityPack;

class Program
{
    static async System.Threading.Tasks.Task Main(string[] args)
    {
        // URL of the course page
        string courseUrl = "https://example.com/courses";

        // Make an HTTP request to get the HTML content
        using (HttpClient client = new HttpClient())
        {
            string htmlContent = await client.GetStringAsync(courseUrl);

            // Use HtmlAgilityPack to parse the HTML
            HtmlDocument doc = new HtmlDocument();
            doc.LoadHtml(htmlContent);

            // Extract course information (modify as per the HTML structure)
            HtmlNodeCollection courseNodes = doc.DocumentNode.SelectNodes("//div[@class='course']");
            if (courseNodes != null)
            {
                foreach (HtmlNode courseNode in courseNodes)
                {
                    string courseTitle = courseNode.SelectSingleNode(".//h2")?.InnerText.Trim();
                    string courseDescription = courseNode.SelectSingleNode(".//p")?.InnerText.Trim();

                    Console.WriteLine($"Title: {courseTitle}");
                    Console.WriteLine($"Description: {courseDescription}");
                    Console.WriteLine();
                }
            }
            else
            {
                Console.WriteLine("No course information found on the page.");
            }
        }
    }
}

This is a basic example, and you'll need to adapt it based on the actual HTML structure of the course page you are working with.

There are several ways to earn money by offering proxy services or leveraging proxies for various tasks. Here are some methods to consider:

1. Sell proxy services: You can set up your own proxy server and offer it as a service to customers who require anonymity, security, or geographical bypassing. You can charge a subscription fee or offer pay-as-you-go plans based on the quality and features of your proxy service.

2. Rent proxies: If you already have a proxy server, you can rent out individual proxy IP addresses or entire proxy servers to users who need temporary access to proxies for specific tasks, such as automating tasks on social media platforms or web scraping.

3. Resell proxy services: You can partner with existing proxy service providers and resell their services to your own clients, earning a commission for each sale. This can be a good option if you already have a customer base or if you don't want to manage the technical aspects of running a proxy server.

4. Use proxies for affiliate marketing: You can use proxies to create multiple accounts on affiliate marketing platforms, such as Amazon Associates or ClickBank, to increase your chances of making sales. Proxies can help you avoid IP-based restrictions and manage multiple accounts more efficiently.

5. Offer proxy management services: If you have expertise in managing proxy servers, you can offer proxy management services to clients who need help setting up, maintaining, or troubleshooting their proxy servers.

6. Web scraping and data mining: You can use proxies to perform web scraping or data mining tasks, such as collecting data from websites or online marketplaces. Once you have collected the data, you can sell it to businesses or individuals who need access to that information.

Most often it is used to substitute your real IP address. An example of when this is needed: watching shows on Netflix that are only available to US users. A proxy can be used to make a user logging in from anywhere in the world will be identified by the IP address as a US user. Another option is to test your site through a local web server. A proxy in this case is used to intercept all the traffic in order to analyze it further for errors and failures.