Chrome SOCKS Proxy

The reason for the lack of connection to the network can be due to incorrect proxy settings, that is, incorrect IP addresses were entered or specified, or the server simply does not work. Users also often forget that proxy settings must be disabled.

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.

In Swift, you can use the Codable protocol to parse JSON data into Swift objects. Here's a basic example:

Assuming you have the following JSON data:

{
    "name": "John Doe",
    "age": 30,
    "city": "New York"
}

And you want to create a Swift struct to represent this data:

import Foundation

// Define a struct conforming to Codable
struct Person: Codable {
    let name: String
    let age: Int
    let city: String
}

// JSON data
let jsonData = """
{
    "name": "John Doe",
    "age": 30,
    "city": "New York"
}
""".data(using: .utf8)!

// Use JSONDecoder to decode JSON data into a Person object
do {
    let person = try JSONDecoder().decode(Person.self, from: jsonData)
    print("Name: \(person.name)")
    print("Age: \(person.age)")
    print("City: \(person.city)")
} catch {
    print("Error decoding JSON: \(error)")
}

In this example:

• We define a Person struct that conforms to the Codable protocol. The struct's properties match the keys in the JSON data.
• We create a JSON string and convert it to Data using data(using:).
• We use JSONDecoder to decode the JSON data into an instance of the Person struct.

Ensure that the keys in your Swift struct match the keys in your JSON data, and the data types match accordingly. The JSONDecoder automatically maps the JSON data to the struct based on the property names.

This example assumes a simple JSON structure. If your JSON structure is more complex, you may need to define additional structs conforming to Codable to represent nested structures.

Note: If your JSON data comes from a URL, you can also use URLSession to fetch the data.

A proxy in data centers is usually a separate server that processes incoming requests and then distributes them to the submitted addresses (or IP). Also through the proxy it is possible to allocate a specific user a separate IP address for connection (for example, if he needs a virtual 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.