G Plus Proxy Server

A reverse proxy is mainly used by administrators and is responsible for balancing workload and high availability. The reverse proxy redirects received requests to one of its web servers. From the outside it is completely invisible and looks as if all required resources are concentrated directly in the proxy.

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.

To receive and display a video stream via UDP protocol on a C# server, you can use the UdpClient class from the System.Net.Sockets namespace. Here's a simple example of how to set up a UDP server that receives a video stream and displays it on a Windows Forms application:

1. Create a new Windows Forms Application project in Visual Studio.

2. Add a PictureBox control to the form.

3. Double-click on the PictureBox to create a new method named pictureBox1_Click.

4. Add the following code to the pictureBox1_Click method:

using System;
using System.Drawing;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Windows.Forms;

namespace UDP_Video_Stream
{
    public partial class Form1 : Form
    {
        private const int Port = 12345;
        private byte[] _buffer = new byte[1024 * 1024]; // 1MB buffer
        private UdpClient _udpClient;
        private Thread _receiveThread;

        public Form1()
        {
            InitializeComponent();
            InitializeUdpClient();
        }

        private void InitializeUdpClient()
        {
            _udpClient = new UdpClient(Port);
            _udpClient.EnableBroadcast = true;
            _receiveThread = new Thread(ReceiveVideoStream);
            _receiveThread.Start();
        }

        private void ReceiveVideoStream()
        {
            while (true)
            {
                try
                {
                    IPEndPoint remoteEndPoint = new IPEndPoint(IPAddress.Any, 0);
                    int receivedBytes = _udpClient.Receive(ref remoteEndPoint);

                    byte[] frame = new byte[receivedBytes];
                    Array.Copy(_buffer, frame, receivedBytes);

                    // Process the received frame (decode, display, etc.)
                    ProcessFrame(frame);
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                }
            }
        }

        private void ProcessFrame(byte[] frame)
        {
            // This method should be implemented to process the received frame.
            // For example, you can decode the frame using a library like FFmpeg and display it on the PictureBox.
            // Note that this is a complex task and requires additional libraries and code.
        }

        private void pictureBox1_Click(object sender, EventArgs e)
        {
            // This method is called when the PictureBox is clicked.
            // You can add any additional logic here if needed.
        }
    }
}

This code sets up a UDP server that listens on port 12345 and receives video frames. The ProcessFrame method should be implemented to process the received frame, which may involve decoding the frame

Open the browser settings and go to the "Advanced" section. Click on "System" and then, in the window that opens, click on "Open proxy settings for computer". A window will appear in front of you, showing all the current settings. Another way to find out the http proxy is to download and install the SocialKit Proxy Checker utility on your computer.

A VPN on your phone lets you protect your privacy when you connect to public WiFi hotspots. You can also use it to hide your real location, connect to blocked sites and applications. There are many ways to use VPN.