U2BP Proxy

When working with HtmlAgilityPack in C# to scrape identical tags, you can use XPath or LINQ queries to select and iterate over the desired elements. Here's an example using HtmlAgilityPack to scrape links (anchor tags) from an HTML document:

using HtmlAgilityPack;

class Program
{
    static void Main()
    {
        // Load the HTML document (replace with your HTML content or file path)
        HtmlDocument htmlDoc = new HtmlDocument();
        htmlDoc.LoadHtml("Link 1Link 2Link 3");

        // Select all anchor elements
        HtmlNodeCollection links = htmlDoc.DocumentNode.SelectNodes("//a");

        // Iterate over each anchor element and print the href attribute
        if (links != null)
        {
            foreach (HtmlNode link in links)
            {
                string href = link.GetAttributeValue("href", "");
                Console.WriteLine("Link: " + href);
            }
        }
        else
        {
            Console.WriteLine("No links found.");
        }
    }
}

In this example:

• The HtmlDocument class is used to load the HTML content.
• The SelectNodes method with the XPath expression "//a" is used to select all anchor elements.
• The GetAttributeValue method is used to retrieve the value of the href attribute for each anchor element.

Make sure to replace the HTML content in htmlDoc.LoadHtml with your actual HTML or load it from a file.

Adjust the XPath expression or use LINQ queries based on your specific HTML structure and the tags you want to scrape. Remember to handle cases where elements might not exist or contain the desired attributes.

To create your own proxy server, you can use open-source software such as Privoxy or Squid. Here's a step-by-step guide using Privoxy:

Install Privoxy: Download the latest version of Privoxy from the official website (https://www.privoxy.org/download/) and install it on your computer. The installation process varies depending on your operating system.

Configure Privoxy: After installing Privoxy, open the configuration file, usually located at /etc/privoxy/config.txt on Linux or C:\Program Files\Privoxy\config\config.txt on Windows. You can also find the configuration file in the installation directory.

Edit the configuration file: Open the configuration file in a text editor and make the following changes:

Uncomment the following line by removing the # symbol at the beginning:

listen-address 0.0.0.0

Uncomment the following line and change the port number if desired (e.g., 8118):

listen-port 8118

forward-suffix .privoxy

Add the following line to forward requests to a specific destination server (replace with the desired server's address):

forward-suffix 

Save the configuration file and restart Privoxy: Close the text editor and restart Privoxy to apply the changes. On Linux, you can use the following command:

sudo /etc/init.d/privoxy restart

On Windows, locate the Privoxy service in the Windows Services list and restart it.

Test your proxy server: Open a web browser and configure it to use your new proxy server (e.g., http://localhost:8118). Test by accessing a website to ensure that the proxy server is working correctly.

In Key Collector settings, the user can specify parameters of the proxy server through which the program will connect to the network. In the application window, first select "Settings", then go to the "Network" tab and check "Use proxy". Its parameters can be set either manually or through a configuration file.

In the upper right corner of the browser, click "Settings and Other", and then select the "Options" tab in the window that appears. Once the "General" window opens, locate the "Advanced" tab and click "Open proxy settings" in the menu that appears. Here, in the line "Use a proxy server", select "On". In the "Address" field, you must specify the IP address of the proxy, and in the "Port" field - the port of the proxy. The last thing to do is to click "Save".

In Windows 10 you need to go to "Settings", go to "Network and Internet", open the tab "Proxy" and make the necessary settings for the connection (under "Manual", the item should also be made active).