Postman SOCKS Proxy

A proxy is a service that allows access to websites blocked in different countries, while hiding your own IP address. It is a kind of intermediary between the end server and the owner's computer. A VPN provides an encrypted connection to the network, which not only allows you to keep your privacy, hide your IP address, encrypt Internet traffic, but also bypasses firewalls.

Sending large files over UDP can be a bit tricky because UDP does not guarantee delivery, order, or even that packets won't be duplicated. However, it is possible to send large files using UDP by breaking the file into smaller chunks and sending each chunk separately. Here's a step-by-step guide on how to do it in Python:

1. Import necessary libraries:

import os
import socket
import pickle

2. Define a function to serialize the file data:

def serialize_file_data(file_data):
    return pickle.dumps(file_data)

3. Create a UDP socket:

def create_udp_socket(host, port):
    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.bind((host, port))
    return sock

4. Send the file data over UDP:

def send_file(sock, file_data, host, port):
    serialized_file_data = serialize_file_data(file_data)
    sock.sendto(serialized_file_data, (host, port))

5. Define a function to deserialize the file data:

def deserialize_file_data(file_data):
    return pickle.loads(file_data)

6. Create a function to receive the file data:

def receive_file(sock, host, port):
    while True:
        data, addr = sock.recvfrom(4096)
        file_data = deserialize_file_data(data)
        yield file_data

7. Putting it all together:

if __name__ == "__main__":
    file_path = "large_file.txt"
    host, port = "127.0.0.1", 12345
    sock = create_udp_socket(host, port)
    send_file(sock, file_path, host, port)

On the receiving side, you will need to collect all the received file data and save it to a file.

To see your proxy server and port, you'll need to check the settings of the application or software you're using that requires a proxy server. The steps to find the proxy server and port will vary depending on the application or software. Here are some general steps for common applications:

For Web Browsers:

1. Open your web browser (e.g., Chrome, Firefox, Edge).
2. Click on the menu button (usually three horizontal lines or three dots) and select "Settings" or "Options."
3. Look for a section related to "Network settings," "Proxy settings," or "Connections."
4. Find the proxy server address and port in the settings.

For Windows:

1. Press the Windows key + R to open the Run dialog.
2. Type "inetcpl" and press Enter to open the Internet Properties window.
3. Go to the "Connections" tab, and click on "LAN settings."
4. In the LAN settings, check the box next to "Use a proxy server for your LAN" if you have a proxy server configured. The proxy server address and port will be displayed.

For macOS:

1. Click the Apple menu and select "System Preferences."
2. Click "Network."
3. Select the network connection you want to check the proxy settings for (e.g., Wi-Fi, Ethernet).
4. Click the "Advanced" button.
5. Go to the "Proxies" tab.
6. Check the box next to "Use a proxy server" if you have a proxy server configured. The proxy server address and port will be displayed.

For Linux:

1. Open the Terminal.
2. Enter the following command to edit the network configuration file: sudo nano /etc/environment
3. Find the line that starts with "http_proxy" and check the value to find the proxy server address and port (e.g., "http_proxy=http://proxyserver:port").

SIP is a virtual telephony service. A proxy server in this case is used to collect traffic, its conversion and further transmission to the subscriber via cellular communication. It is mainly used by call centers to communicate with customers.

There are HTTP proxy, FTP proxy, SOCKS proxy, SMTP proxy, CGI proxy. They differ only in the data transmission protocol used and the purpose for which they are used. For example, SMTP proxy allows you to organize a secure server for e-mail.