Esse Proxy

Using UDP, you can request data from a server by sending a request message to the server. Since UDP is a connectionless protocol, you need to know the server's IP address and port to send the request. The server should have a predefined mechanism to handle incoming requests and return the desired data as a response.

Here's a high-level overview of how to request data from a server using UDP:

1. Prepare your request message: Create a message containing the data you want to request from the server. The format of the message depends on the specific application and data you're working with.

2. Send the request message to the server: Use a UDP socket to send the request message to the server's IP address and port. The server should be listening for incoming UDP packets on that address and port.

3. Receive the response from the server: The server processes the incoming request and sends back a response. Use a UDP socket to receive the response on the same or a different port, depending on the application's requirements.

4. Process the response: Extract the desired data from the response and process it as needed.

Here's an example using Python:

import socket

# Prepare the request message
request_message = b"REQUEST_DATA"

# Create a UDP socket
client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

# Send the request message to the server
server_address = ('127.0.0.1', 12345)
client_socket.sendto(request_message, server_address)

# Receive the response from the server
response_message, server_address = client_socket.recvfrom(1024)

# Process the response
print(f"Received response: {response_message}")

# Close the socket
client_socket.close()

In this example, the sendto() function sends a request message to the server, and the recvfrom() function receives the response from the server. The server should be running and listening for incoming UDP packets on the specified address and port.

To check if the proxy server is working, follow these steps:

1. Open your web browser or software that uses the proxy server.

2. Visit a website that displays your public IP address, such as whatismyip.com.

3. Before making any changes to your browser or software settings, take note of your current IP address.

4. Configure your browser or software to use the proxy server you've chosen. If you're unsure how to do this, refer to the instructions provided in the previous answer.

5. Refresh the page with the IP address displayer (e.g., whatismyip.com).

6. Compare the new IP address displayed on the page to the one you noted earlier. If the IP address has changed, the proxy server is working correctly.

Alternatively, you can use a proxy checker tool or website that tests your proxy server's connection and anonymity. Keep in mind that some proxy servers may not work with certain websites or services, so you may need to try different proxies to find one that works for your specific needs.

The "Unexpected token while deserializing object" error usually occurs when the JSON you are trying to parse contains invalid syntax or unexpected characters. To fix this error, follow these steps:

1. Check the JSON structure: Ensure that the JSON string you are trying to parse is well-formed and follows the correct syntax. JSON should only contain valid characters, such as alphanumeric characters, whitespace, and a few special characters like quotes, brackets, and colons.

2. Remove or escape unexpected characters: If the JSON string contains unexpected characters, such as line breaks or comments, remove them or escape them using the appropriate escape sequences. For example, replace line breaks with \n and comments with //.

3. Validate the JSON string: Use a JSON validator tool, such as JSONLint, to check if the JSON string is valid and properly formatted. If there are any syntax errors, the validator will point them out, allowing you to fix them.

4. Use a JSON parser: If you are using a programming language like JavaScript, use a JSON parser to parse the JSON string. For example, in JavaScript, you can use the JSON.parse() method to parse the JSON string:

try {
  const jsonObject = JSON.parse(jsonString);
  // Work with the parsed object...
} catch (error) {
  console.error("Error parsing JSON:", error);
}

5. Handle exceptions: When using a JSON parser, make sure to handle exceptions that may occur if the JSON string is invalid. This will help you identify and fix any issues with the JSON string.

By following these steps, you should be able to fix the "Unexpected token while deserializing object" error and successfully parse the JSON string.

The main scenarios for using a proxy server: bypassing blocking, hiding the real IP, protection of confidential data when connecting to public WiFi access points, interaction with blocked applications, connection to closed portals, forums (which operate only in one country, region).

In the "Settings" of any Android smartphone there is a "VPN" item. And there you can manually specify the parameters of the proxy, through which the connection to the Internet will be made. There, some of the programs also import ready-made scripts for proxy connections.