Isedap Proxy

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):

2. Connection:

3. Reliability:

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 Scrapy, you can navigate to the next page of a website by following the links or buttons that lead to subsequent pages. This typically involves extracting the link or button URL from the current page and generating a new request to scrape the content of the next page.

Here's a basic example of how you can navigate to the next page in a Scrapy spider:

import scrapy

class MySpider(scrapy.Spider):
    name = 'my_spider'
    start_urls = ['http://example.com/page1']

    def parse(self, response):
        # Extract data from the current page

        # ...

        # Follow the link to the next page (assuming pagination link is in an anchor tag)
        next_page_url = response.css('a.next-page-link::attr(href)').extract_first()
        if next_page_url:
            yield scrapy.Request(url=next_page_url, callback=self.parse)

- The spider starts with the initial URL (start_urls).
- The parse method extracts data from the current page.
- It then extracts the URL of the next page using a CSS selector (response.css('a.next-page-link::attr(href)').extract_first()). Adjust this selector based on the structure of the website you are scraping.
- If a next page URL is found, a new scrapy.Request is yielded with the URL and the same callback function (self.parse). This creates a new request to scrape the content of the next page.

It means a proxy that has no access to the Internet. It is created using special software on the user's computer. Most often it is used to check the performance of the created site or web-application.

Chromium does not support proxies in-house. There is a corresponding item in the menu, but clicking on it will open the regular proxy server settings in Windows or MacOS.

Go to settings, find the "Security" menu and click on "Unblock security settings". You will be prompted to agree to the changes, which you will need to confirm by clicking "Yes", which will unlock the "Allow unsupervised access" item. Now click on the text or checkbox to activate the function. On the computer from which you plan to connect remotely, you will need to enter the ID of the first computer and click on "Connect".