Kubernetes Squid Proxy

You can make sure that your IP address and confidential information is protected with the help of special online services. It is recommended to perform such checks to confirm or deny the security of personal IP on a regular basis. It will help to avoid many troubles, including blocking your work in the network.

Find a working proxy and start installing it in the messenger. Telegram has bots that allow you to get several proxies for free, including @socks5_bot. When you launch it, once the location is selected, you'll get an IP address, port, username and password. Go through "Settings" to "Data and Disk" and then to "Proxy Settings" and enter the required data in the highlighted fields: server, port, username and password.

To implement a constant scraping process, you can use a combination of a loop and a delay to periodically scrape data from a website. This process is often referred to as "web scraping with intervals" or "periodic scraping." Here's an example using Node.js and the axios library for making HTTP requests

Install Dependencies

Install the required npm packages:

npm install axios

Write the Scraping Script

Create a Node.js script (e.g., constant_scraping.js) with the following code:

const axios = require('axios');

async function scrapeData() {
    try {
        // Replace with your scraping logic
        const response = await axios.get('https://example.com'); // Replace with the URL you want to scrape
        console.log('Scraped data:', response.data);

        // Add additional scraping logic as needed
        // ...

    } catch (error) {
        console.error('Error during scraping:', error.message);
    }
}

// Function to perform constant scraping with a specified interval
async function constantScraping(interval) {
    while (true) {
        await scrapeData();
        await sleep(interval); // Sleep for the specified interval before the next scrape
    }
}

// Function to introduce a delay using setTimeout
function sleep(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));
}

// Set the interval (in milliseconds) for constant scraping
const scrapingInterval = 60000; // 60 seconds

// Start the constant scraping process
constantScraping(scrapingInterval);

Replace 'https://example.com' with the URL you want to scrape.

Adjust the scraping logic within the scrapeData function to meet your specific requirements.

Run the Script:

Run the script using Node.js:

node constant_scraping.js

This script defines a constantScraping function that continuously calls the scrapeData function at a specified interval using a loop and the sleep function. Adjust the interval (scrapingInterval) based on your scraping needs.

Explicit and implicit waiting are two types of waiting strategies used in Selenium WebDriver to handle synchronization issues in web applications. They help in dealing with elements that are not immediately available on the page when the test starts.

Explicit Wait:

Explicit wait is used when you know exactly which element you are waiting for and how long you want to wait for that element to be available. It uses the WebDriverWait class to wait for a specified condition to be true for a specified amount of time. Explicit wait is more reliable and is generally recommended when you know the expected conditions.

The main components of explicit wait are:

- WebDriverWait: It is a class that provides a way to wait for a condition to be true for a specified amount of time.

- ExpectedConditions: It is a class that provides a way to specify the condition to be true.

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver = webdriver.Chrome()
driver.get("http://example.com")

# Explicit wait for an element to be present
wait = WebDriverWait(driver, 10)
element = wait.until(EC.presence_of_element_located((By.ID, "myElement")))

Implicit Wait:

Implicit wait is a global setting that applies to all find_element and find_elements calls in a test. It tells the WebDriver to wait for a specified amount of time for an element to be available before throwing a NoSuchElementException. Implicit wait is less reliable than explicit wait because it applies to all elements in the test, not just the specific one you are waiting for.

The main components of implicit wait are:

ImplicitlyWait: It is a method used to set the amount of time the WebDriver should wait for an element to be available before throwing a NoSuchElementException.

from selenium import webdriver
from selenium.common.exceptions import NoSuchElementException

driver = webdriver.Chrome()
driver.implicitly_wait(10) # Set implicit wait to 10 seconds
driver.get("http://example.com")

try:
    element = driver.find_element(By.ID, "myElement")
except NoSuchElementException:
    print("Element not found")

In summary, the main difference between explicit and implicit waiting in Selenium is that explicit wait is used for waiting for a specific condition to be true for a specified amount of time, while implicit wait is a global setting that applies to all find_element and find_elements calls in a test. Explicit wait is more reliable and is generally recommended for specific scenarios, while implicit wait is less reliable but simpler to use for general cases.

In a local network, you will need two computers to do this. One will be used as a proxy server, the other as a client. Then you need to activate the proxy on the server. And on the client PC - choose to access the Internet via a local network connection (i.e. from the server). Another option is to use a web server like Nginx.