OpenVPN Through Proxy

When using a proxy, Google Chrome warns the user about it at startup. To connect directly, you must disable proxies at system level. That is, go to "Settings" Windows, then - "Network and Internet", in the section "Proxy server" disable the corresponding item.

In UDP, the term "connected" has a different meaning compared to TCP. Since UDP is a connectionless protocol, there is no established connection between the sender and receiver. However, you can determine if the UDP socket is in a listening state or if it has been successfully created.

To check if a UDP socket is in a listening state, you can use the socket.SOCK_DGRAM type and the bind() method. If the socket is successfully created and bound to an address and port, it will be in a listening state and ready to receive incoming UDP packets.

Here's an example using Python:

import socket

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

# Bind the socket to an address and port
server_address = ('localhost', 12345)
server_socket.bind(server_address)

# Check if the socket is in a listening state
print("Socket is in a listening state: ", server_socket.getsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR) == 1)

# Close the socket
server_socket.close()

In this example, the bind() method creates a UDP socket and binds it to the specified address and port. The getsockopt() method is used to retrieve the SO_REUSEADDR option, which indicates whether the socket is in a listening state. If the value is 1, the socket is in a listening state and ready to receive incoming UDP packets.

Although free proxies are popular, they are far from being flawless in their work. Many of their IP addresses are blacklisted by popular resources, and the data transfer speed and stability are very unreliable. When choosing a proxy, keep in mind that the new version of IPv6 is not supported by most websites. Note also that proxies are divided into private and public, statistical and dynamic, and support different network protocols.

There are 2 ways to do this. The first is to manually change the settings in /etc/environment, but you will definitely need root access to do that. You can also use the Network Manager utility (compatible with all common DEs). You just have to make sure beforehand that the driver for the network adapter to work properly is installed on the system.