Korvold Proxy

Open the "Settings" application via "Start" and go to "Network and Internet". Here, in the "Proxy" section, find the "Manual Proxy Configuration" column. Move the slider to "On" and carefully enter the IP address and port of the proxy, then click "Save".

Bypassing CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is generally considered unethical and against the terms of service of most websites. CAPTCHAs are designed to ensure that interactions with a website are performed by humans rather than automated scripts. Attempting to bypass CAPTCHA measures without explicit permission is likely to violate the website's terms of service and may have legal consequences.

If you are facing challenges with CAPTCHAs while using Selenium, consider the following alternatives:

1. Use CAPTCHA Solving Services:

   • Some third-party services offer CAPTCHA solving solutions. These services may use human workers to solve CAPTCHAs for you. However, keep in mind that using such services may still violate the terms of service of the website.

2. Contact the Website Owner:

   • If you are legitimately using Selenium for testing purposes or any other sanctioned activity, consider reaching out to the website owner or administrator. They may provide you with a way to bypass CAPTCHAs for testing purposes.

3. Use Headless Browsing:

   • Some websites may implement CAPTCHAs only for users interacting with the website in a visible browser window. Running Selenium in headless mode (without a visible browser) may reduce the likelihood of encountering CAPTCHAs.

4. Automate Only What's Necessary:

   • Avoid unnecessary interactions with the website and automate only what is essential. Excessive and rapid interactions may trigger CAPTCHAs.

5. Consider Alternatives:

   • Explore alternatives to web scraping if CAPTCHAs are a significant obstacle. Some websites provide APIs or other methods for accessing data without the need for traditional web scraping.

Always respect the terms of service of the websites you are interacting with and seek permission if you encounter obstacles like CAPTCHAs. Attempting to bypass security measures without authorization is not only unethical but may also lead to legal consequences.

If you are experiencing TimeoutException errors when trying to run Selenium in headless mode in PyCharm, there are several potential causes and solutions. Here are some steps to troubleshoot and address the issue:

1. Increase Wait Time:

   • Headless mode may introduce additional latency, and elements might take longer to load. Increase the timeout for explicit waits to give the elements enough time to become available.

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver = webdriver.Chrome(options=options)

# Increase the timeout as needed
wait = WebDriverWait(driver, 20)

# Example wait for an element to be clickable
element = wait.until(EC.element_to_be_clickable((By.ID, 'your_locator')))

• Use Different Locator Strategies:

  • If one locator strategy is causing timeouts, try using a different one. For example, switch from By.ID to By.XPATH or vice versa.

• Verify Element Identification:

  • Confirm that the element locator used in your script is correct and uniquely identifies the intended element.

• Check for JavaScript Errors:

  • Open the browser console and check for any JavaScript errors that might be affecting the behavior of the page.

• Increase Browser Window Size:

  • Some websites may behave differently in headless mode based on the window size. Try setting a larger window size.

options.add_argument('--window-size=1920,1080')

• Update ChromeDriver:

  • Ensure that you are using the latest version of ChromeDriver that is compatible with your Chrome browser version.

• Use a Custom User Agent:

  • Some websites may behave differently based on the user agent. Try setting a custom user agent.

options.add_argument('--user-agent=Your_Custom_User_Agent')

• Check for Captchas or Additional Security Measures:

  • Some websites may use captchas or additional security measures that could cause delays. Ensure that your script is not encountering captchas.

• Browser Profile:

  • In some cases, the behavior of the browser may change when running in headless mode. Experiment with different browser profiles or use a clean profile.

• Network Issues:

  • Ensure that there are no network-related issues that might be causing delays in loading elements.

• Check Proxy Settings:

  • If you are using a proxy, ensure that the proxy settings are configured correctly for headless mode.

• Headless Mode Compatibility:

  • Some websites may have issues with headless mode due to user agent detection or other factors. Test your script on different websites to see if the issue persists.

To send a UDP request to a STUN server in C++, you can use the following example code. This example uses the boost::asio library for handling asynchronous I/O operations and boost::beast for handling UDP communication. Make sure you have the Boost library installed on your system before running this code.

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 

namespace http = boost::beast::http;

using tcp = boost::asio::ip::tcp;
using udp = boost::asio::ip::udp;

int main(int argc, char* argv[]) {
  if (argc != 3) {
    std::cerr << "Usage: stun_udp_request  " << std::endl;
    return EXIT_FAILURE;
  }

  boost::asio::io_context ioc;
  udp::resolver resolver(ioc);
  udp::resolver::results_type results = resolver.resolve(argv[1], argv[2]);

  if (results.empty()) {
    std::cerr << "Cannot resolve: " << argv[1] << ":" << argv[2] << std::endl;
    return EXIT_FAILURE;
  }

  udp::socket udp_socket(ioc);
  udp_socket.connect(results.begin()->endpoint());

  // Prepare the STUN Binding Request
  std::string stun_request =
      "BINDING_REQUEST\r\n"
      "MIXED_RELAY\r\n"
      "USER-AGENT: STUN-UDP-Example\r\n"
      "\r\n";

  // Send the STUN Binding Request
  boost::system::error_code ignored_error;
  udp_socket.send_to(boost::asio::buffer(stun_request), results.begin()->endpoint(), 0, ignored_error);

  // Receive the STUN Binding Response
  boost::beast::flat_buffer buffer;
  http::response response;
  udp_socket.receive_message(buffer, response);

  // Print the STUN Binding Response
  std::cout << "STUN Binding Response:\n";
  std::cout << response.what() << std::endl;

  return EXIT_SUCCESS;
}

To compile the example, you can use the following command:

g++ -std=c++17 -o stun_udp_request stun_udp_request.cpp -lboost_system -lboost_as

If you plan to use a proxy every day, it is recommended to pay attention to paid services. There, the connection is as reliable as possible, with no bandwidth limitations. However, the performance of numerous free proxies is not guaranteed.