Ble HTTP Proxy Service

Before activating a proxy server in Opera, it is recommended that you clear your browsing history and cookies of sites. This is necessary to ensure that information about the computer is not transmitted during further connections. To do this, it is enough to follow the algorithm:

Open the browser.
Click on the opera icon in the upper left corner.
Hover your mouse cursor over the "History" item.
Use the option "Clear history of visits".
After that you need to specify parameters of the proxy server. To do this, perform the following actions:

Open your browser.
Click on the Opera icon in the top left corner.
Click on "Settings".
Select the "Advanced" option.
Scroll down to the "System" tab.
Click on "Open proxy settings for computer".
Click on "Network settings".
Activate the "Use a proxy server" option.
In the window that opens, specify the IP address of the proxy server. Enter the address in the field of the protocol to which the proxy server belongs. You can get this information from your provider.
Click "OK" to save your settings.

To scrape tags from XML with Python, you can use the xml.etree.ElementTree module, which is part of the Python standard library. Here's an example of how to extract tags from an XML document

Assuming you have an XML file named example.xml like this:

    
        Item 1
        10.99
    
    
        Item 2
        19.99
    

You can use the following Python code to extract tags:

import xml.etree.ElementTree as ET

# Load the XML file
xml_file_path = 'path/to/example.xml'
tree = ET.parse(xml_file_path)
root = tree.getroot()

# Extract tags
tags = set()
for element in root.iter():
    tags.add(element.tag)

# Print the extracted tags
print("Extracted Tags:")
for tag in tags:
    print(tag)

This example uses xml.etree.ElementTree to parse the XML file, iterates over the elements, and adds each tag to a set to ensure uniqueness. You can modify this example based on your specific needs.

If you want to extract tags with attributes, you can modify the code accordingly. For example:

import xml.etree.ElementTree as ET

# Load the XML file
xml_file_path = 'path/to/example.xml'
tree = ET.parse(xml_file_path)
root = tree.getroot()

# Extract tags with attributes
tags_with_attributes = set()
for element in root.iter():
    tag_with_attributes = element.tag
    if element.attrib:
        attributes = ', '.join([f"{key}={value}" for key, value in element.attrib.items()])
        tag_with_attributes += f" ({attributes})"
    tags_with_attributes.add(tag_with_attributes)

# Print the extracted tags with attributes
print("Extracted Tags with Attributes:")
for tag in tags_with_attributes:
    print(tag)

This example includes attributes in the extracted tags, displaying them in a format like tag_name (attribute1=value1, attribute2=value2). Adjust the code based on your XML structure and specific requirements.

In Python, when using socket module, both TCP and UDP sockets have different local addresses (laddr) because they serve different purposes and have different characteristics.

TCP (Transmission Control Protocol) is a connection-oriented protocol that ensures reliable, in-order, and error-checked delivery of data between the sender and receiver. It uses a connection establishment phase to establish a session between the sender and receiver, and it maintains a connection state throughout the data exchange.

UDP (User Datagram Protocol) is a connectionless protocol that provides a simple and fast way to send and receive data without the overhead of establishing and maintaining a connection. It does not guarantee the delivery, order, or error-checking of data packets.

Here are the main differences between TCP and UDP sockets in Python:

1. Local Address (laddr):

TCP Socket: The laddr for a TCP socket contains the IP address and port number of the local endpoint that is listening for incoming connections. This is the address and port that the server binds to and listens on for incoming connections.

UDP Socket: The laddr for a UDP socket contains the IP address and port number of the local endpoint that is sending or receiving data. This is the address and port that the client uses to send data or the server uses to receive data.

2. Connection:

TCP Socket: TCP sockets establish a connection between the client and server before data exchange.

UDP Socket: UDP sockets do not establish a connection; they send and receive data without a connection.

3. Reliability:

TCP Socket: TCP provides reliable, in-order, and error-checked data delivery.

UDP Socket: UDP does not guarantee data delivery, order, or error checking.

In summary, the different laddr values in TCP and UDP sockets are due to their different purposes and characteristics. TCP sockets use laddr to represent the listening endpoint, while UDP sockets use laddr to represent the sending or receiving endpoint.

In Windows 10 you need to go to "Settings", go to "Network and Internet", open the tab "Proxy" and make the necessary settings for the connection (under "Manual", the item should also be made active).

A proxy is responsible for forwarding traffic. Technically, it just copies the traffic and sends it to the Internet, but it also replaces various metadata (the type of equipment from which the request is sent, the port number, the IP address, and so on). Or it can be simply called a "mediator" in the computer network.