teleren/devto huggingface dataset:
MySQL Database Management
Tags: mysql, programming, beginners, tutorial
Published: 2023-09-23 04:59:08


  
<body>
  <h1>MySQL Database Management</h1>

  <h2>Creating a Database</h2>
  <p>To create a new database in MySQL, you can use the following SQL command:</p>
    
```shell
CREATE DATABASE your_database_name;
```

  <h2>Using a Database</h2>
  <p>After creating a database, you can use it by executing the following SQL command:</p>
  
```shell
USE your_database_name;
```
  
  <h2>Creating a Table</h2>
  <p>To create a table in a MySQL database, you can use the following SQL syntax:</p>

```
CREATE TABLE table_name (
      column1 datatype1 constraints,
      column2 datatype2 constraints,
      ...
    ); 
```

  <h3>Example:</h3>
  

```
CREATE TABLE users (
      id INT AUTO_INCREMENT PRIMARY KEY,
      name VARCHAR(50),
      email VARCHAR(100)
    ); 
```

  <h2>Inserting Data</h2>
  <p>To insert data into a table, you can use the following SQL syntax:</p>
  

```
INSERT INTO table_name (column1, column2, ...) VALUES (value1, value2, ...); 
```
  <h3>Example:</h3>
  

```
INSERT INTO users (name, email) VALUES ('John Doe', 'john@example.com'); 
```

  <h2>Updating Data</h2>
  <p>To update data in a table, you can use the following SQL syntax:</p>
  

```
UPDATE table_name SET column1 = value1, column2 = value2, ... WHERE condition; 
```
  <h3>Example:</h3>
  

```
UPDATE users SET email = 'newemail@example.com' WHERE id = 1; 
```

  <h2>Deleting Data</h2>
  <p>To delete data from a table, you can use the following SQL syntax:</p>
  

```
DELETE FROM table_name WHERE condition;
```

  <h3>Example:</h3>
  

```
DELETE FROM users WHERE id = 1; 
```

  <h2>Dropping a Table</h2>
  <p>To drop (delete) a table from the database, you can use the following SQL syntax:</p>
  

```
DROP TABLE table_name; 
```

  <h3>Example:</h3>
  

```
DROP TABLE users; 
```
Python: A Multifaceted Jewel of Programming
Published: 2023-09-23 04:59:05

Introduction
Python, named after the British comedy group Monty Python, has evolved to become one of the most versatile and widely used programming languages. Its simple syntax, readability, and extensive libraries make Python a preferred choice for developers across domains. Let’s delve into the various facets of Python that make it a jewel in the programming world.

1. Web Development
Python’s frameworks like Django, Flask, and Pyramid are highly preferred for developing robust and scalable websites. The built-in features of these frameworks allow for rapid development, reducing the amount of manual coding. Websites like Instagram and Pinterest are exemplary Python creations.

Example: Flask
`from flask import Flask
app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'Hello, World!'
`
2. Scientific Computing
In scientific and numeric computing, Python, with libraries like NumPy and SciPy, offers a powerful environment. Scientists and researchers leverage Python for its simplicity and performance in processing mathematical computations and scientific data.

Example: NumPy
`import numpy as np
a = np.array([1, 2, 3])
print("1D array:", a)
`
3. Data Analysis
Python’s Pandas library is a lifesaver for data analysts. It provides high-level data structures and methods designed to make data analysis fast and easy in Python.

Example: Pandas
`import pandas as pd
data = {'Name': ['John', 'Anna'], 'Age': [23, 45]}
df = pd.DataFrame(data)
print(df)
`
4. Machine Learning
Python is a go-to language for Machine Learning and Artificial Intelligence, thanks to libraries like TensorFlow and scikit-learn. Developers and data scientists use Python to build predictive models and AI algorithms efficiently.

Example: scikit-learn
`from sklearn import datasets
from sklearn.model_selection import train_test_split
iris = datasets.load_iris()
X_train, X_test, y_train, y_test = train_test_split(iris.data, iris.target)
`
5. Game Development
Python is also a favorite in game development. Libraries like Pygame provide modules and functionalities to create interactive games.

Example: Pygame
`import pygame
pygame.init()
win = pygame.display.set_mode((500, 500))
pygame.display.set_caption("First Game")
`6. Cybersecurity
Python’s versatility extends to cybersecurity. Its simplicity and extensive libraries make developing cybersecurity tools practical. Python scripts can penetrate networks, analyze vulnerabilities, and automate security tasks, making it invaluable in this domain.

Conclusion
Python's multifaceted nature, coupled with its simplicity and extensive library support, makes it a universally favored programming language. Whether it’s web development, scientific research, data analysis, machine learning, game development, or cybersecurity, Python has proven to be a versatile and invaluable tool, truly a multifaceted jewel in the world of programming.
Creating a Calculator with Golang<
Tags: go, tutorial, programming, beginners
Published: 2023-09-23 04:45:33



<h1>Creating a Calculator with Golang</h1>

<p>In this tutorial, we'll guide you through creating a simple calculator using the Go programming language (Golang). Go is a statically typed, compiled language known for its simplicity and efficiency, making it a great choice for various applications, including a calculator.</p>

<h2>Prerequisites</h2>
<p>Before we begin, make sure you have the Go programming language installed on your system. You can download it from the official Go website: <a href="https://golang.org/">https://golang.org/</a></p>

<h2>Step 1: Setting up the Project</h2>
<p>Create a new directory for your project and navigate to it using the terminal:</p>


```shell
mkdir calculator
cd calculator
```


<h2>Step 2: Create the Go Source Code</h2>
<p>Create a file named <code>main.go</code> and open it in your favorite code editor. This is where we'll write the Go code for our calculator.</p>

```go
package main

import (
	"fmt"
	"strconv"
)

func main() {
	var num1, num2 float64
	var operator string

	fmt.Println("Simple Calculator in Golang")

	fmt.Print("Enter first number: ")
	fmt.Scanln(&num1)

	fmt.Print("Enter operator (+, -, *, /): ")
	fmt.Scanln(&operator)

	fmt.Print("Enter second number: ")
	fmt.Scanln(&num2)

	result := calculate(num1, num2, operator)

	fmt.Printf("Result: %f %s %f = %f\n", num1, operator, num2, result)
}

func calculate(num1, num2 float64, operator string) float64 {
	var result float64

	switch operator {
	case "+":
		result = num1 + num2
	case "-":
		result = num1 - num2
	case "*":
		result = num1 * num2
	case "/":
		if num2 != 0 {
			result = num1 / num2
		} else {
			fmt.Println("Error: Division by zero")
		}
	default:
		fmt.Println("Invalid operator")
	}

	return result
} 
```

<h2>Step 3: Run the Calculator</h2>
<p>Now, compile and run the program to use the calculator:</p>


```shell
go run main.go
```


<p>Follow the prompts to enter the numbers and the operator (e.g., +, -, *, /). The calculator will then display the result.</p>

<h2>Conclusion</h2>
<p>Congratulations! You've successfully created a simple calculator using Golang. This example demonstrates the basics of user input, functions, and switch statements in Golang. Feel free to expand and improve upon this calculator by adding more features and functionalities.</p>
Creating a Telegram Bot: A Step-by-Step Guide
Published: 2023-09-23 04:35:23


<h1>Creating a Telegram Bot: A Step-By-Step Guide</h1>

<p>Telegram is a popular messaging platform that allows users to create and interact with bots. Bots on Telegram can be used for various purposes, including automating tasks, providing information, or facilitating interactions.</p>

<h2>Step 1: Set Up a Telegram Account</h2>

<p>To create a Telegram bot, you'll need a Telegram account. If you don't have one, download the Telegram app on your mobile device or use the web version.</p>

<h2>Step 2: Create a Bot on Telegram</h2>

<p>Open Telegram and search for "BotFather" - the official Telegram bot that helps you create and manage other bots. Start a chat with BotFather by sending the command <code>/start</code>.</p>

<p>Follow the instructions provided by BotFather to create a new bot. You'll need to give your bot a name and a unique username.</p>

<h2>Step 3: Obtain the API Token</h2>

<p>Once your bot is created, BotFather will provide you with an API token. This token is essential for authenticating your bot and making requests to the Telegram Bot API.</p>

<h2>Step 4: Set Up a Development Environment</h2>

<p>To interact with the Telegram Bot API and handle bot functionality, you'll need a programming environment. Let's use Python for this guide.</p>

<p>Ensure you have Python installed on your system and install the <code>python-telegram-bot</code> library using pip:</p>

<pre>
  <code>pip install python-telegram-bot</code>
</pre>

<h2>Step 5: Write Python Code to Interact with the Bot</h2>

<p>Create a Python script to interact with your Telegram bot using the API token you obtained earlier. Here's a simple example:</p>

<pre>
  <code>
import telegram

# Initialize the bot with your API token
bot = telegram.Bot(token='YOUR_API_TOKEN')

# Send a message to a specific chat ID
chat_id = 'YOUR_CHAT_ID'
message = 'Hello, this is your Telegram bot!'
bot.send_message(chat_id=chat_id, text=message)
  </code>
</pre>

<p>Replace <code>'YOUR_API_TOKEN'</code> with the API token you obtained from BotFather and <code>'YOUR_CHAT_ID'</code> with the chat ID of the user or group you want to send messages to.</p>

<h2>Step 6: Run Your Bot</h2>

<p>Run your Python script to start your Telegram bot. It will send the defined message to the specified chat ID.</p>

<p>Congratulations! You have successfully created a Telegram bot and sent a message using the Telegram Bot API.</p>

<p>Feel free to explore more features and functionalities that Telegram bots offer. You can customize your bot to handle various commands, reply to specific messages, and provide dynamic responses based on user interactions.</p>
A Comprehensive List of Cybersecurity Ebooks for Learning and Advancing Your Skills
Tags: beginners, cybersecurity, ebook, resources
Published: 2023-09-23 04:31:26


# A Comprehensive List of Cybersecurity Ebooks

Are you looking to enhance your cybersecurity skills, expand your knowledge, or kickstart a career in cybersecurity? Ebooks can be a valuable resource in your learning journey. Here's a curated list of ebooks covering various aspects of cybersecurity that you can delve into:

## 1. "Hacking: The Art of Exploitation" by Jon Erickson
![Hacking: The Art of Exploitation](https://example.com/hacking_book_cover.jpg)
[Read the ebook](https://example.com/hacking_ebook_link)

Description: This book is a great starting point for those interested in understanding the fundamentals of hacking and exploitation techniques.

## 2. "The Web Application Hacker's Handbook" by Dafydd Stuttard and Marcus Pinto
![The Web Application Hacker's Handbook](https://example.com/web_app_hacking_book_cover.jpg)
[Read the ebook](https://example.com/web_app_hacking_ebook_link)

Description: Explore the realm of web application security and learn how to secure web applications against various attacks.

## 3. "Practical Malware Analysis: A Hands-On Guide to Dissecting Malicious Software" by Michael Sikorski and Andrew Honig
![Practical Malware Analysis](https://example.com/malware_analysis_book_cover.jpg)
[Read the ebook](https://example.com/malware_analysis_ebook_link)

Description: Dive into the world of malware analysis, understand malware behavior, and develop skills to dissect and analyze malicious software.

## 4. "CISSP (ISC)2 Certified Information Systems Security Professional Official Study Guide" by Mike Chapple, James Michael Stewart, and Darril Gibson
![CISSP Study Guide](https://example.com/cissp_study_guide_cover.jpg)
[Read the ebook](https://example.com/cissp_study_guide_ebook_link)

Description: Prepare for the CISSP certification exam and gain in-depth knowledge across the domains of information security.

## 5. "Blue Team Handbook: Incident Response Edition: A condensed field guide for the Cyber Security Incident Responder" by Don Murdoch
![Blue Team Handbook](https://example.com/blue_team_handbook_cover.jpg)
[Read the ebook](https://example.com/blue_team_handbook_ebook_link)

Description: Learn about incident response and how to effectively respond to security incidents as part of a blue team.

## Conclusion

These ebooks cover a range of cybersecurity topics, from hacking and web application security to malware analysis and incident response. Depending on your interests and goals, these resources can help you build a strong foundation in cybersecurity.

Remember, continuous learning is key in the rapidly evolving field of cybersecurity. Happy reading and learning!

*Disclaimer: Make sure to use these resources responsibly and in accordance with legal and ethical guidelines.*
How To Quickly Fix Production Errors Along With CORS Error
Tags: javascript, react, codenewbie
Published: 2023-09-23 04:26:28

{% embed https://www.youtube.com/watch?v=EwXGOZHPUv8 %}

Fixing production errors is not easy when it happens.

The environment setup, data setup of production is different from the local environment and creating the same environment to reproduce the error is not easy.

Not to worry, Local Overrides Comes to the rescue.

📺 In this video, you will learn:

✅ How to access production files on the local machine

✅ How to debug production code using Chrome's local override feature

✅ How to identify and fix the production issue

✅ How to easily fix the CORS(Cross-origin resource sharing) error

and much more...

Local Overrides allow web developers to make temporary changes to a web page's resources, such as CSS, JavaScript, and see the results live in the browser without actually modifying the original files.

🚀 This can be incredibly useful for debugging and testing purposes. 🧪

## Closing Points

If you're looking to enhance your skills in JavaScript, React, and Node.js with the MERN stack, then my [YouTube Channel](https://www.youtube.com/@codingmastery_dev) is the perfect resource for you.

The videos in this channel cover a range of topics related to JavaScript, React, and Node.js, including tutorials, code walkthroughs, tips and tricks, best practices, and much more.

Whether you're a beginner or an experienced developer, our content is tailored to help you learn and grow.

You can take a look at the below playlists also.

* [Master ES6 Features](https://www.youtube.com/watch?v=l83AlOG3elw&list=PLSJnlFr3D-mGIHFpo80ylsaBErtueSpYS)

* [Beginners Guide To React](https://www.youtube.com/watch?v=aQ0ZcY5N8vw&list=PLSJnlFr3D-mEUWnAwAtjDFPDLPt-Ene4T)

* [Learn React Concepts](https://www.youtube.com/watch?v=tkVqm4VdpJA&list=PLSJnlFr3D-mFm7-cdhnHdBvUdxUp-a9HL)

* [How to Build Unsplash Image Search App Using React](https://www.youtube.com/watch?v=0YoT44j3Jg4) 

* [Express JS + MongoDB Crash Course](https://www.youtube.com/watch?v=GDe8DFZcgoI&list=PLSJnlFr3D-mEn4JLpA4F7UCAX_e5Nmx3q)
    
* [Learn Latest Webpack For Production](https://www.youtube.com/watch?v=ILcb7BD9R90&list=PLSJnlFr3D-mEBWnL0XGa_hpGyiXoI_BIN)
    
* [Redux Toolkit Crash Course](https://www.youtube.com/watch?v=ha2Fh4Vi7xo&list=PLSJnlFr3D-mEmCOE1mjlnsr1A8t5Zrmub)

**If you found this article and video useful, don't forget to subscribe to my [YouTube Channel](https://www.youtube.com/@codingmastery_dev) and hit the bell icon so you will not miss any future video notifications.**

------

**Want to stay up to date with regular content regarding JavaScript, React, Node.js?** [**Follow me on LinkedIn**](https://www.linkedin.com/in/yogesh-chavan97/)**.**
Three ways to cost optimize AWS Compute
Tags: aws, ec2, lambda, cost
Published: 2023-09-23 04:16:59

Welcome to another cost optimization series !!

AWS Compute is EC2 service that does compute & hosting of applications on cloud. These servers are placed in Region, Availability Zones and then provisioned into a VPC, Subnet isolation and enables us to connect via ports through security groups definitions. Organizations/People rent the server on cloud either on-demand, reserve the instances for business utilization.

Well, that being said, vital point that helps us in cost optimization is stopping the servers, when they aren't used or when there aren't any workloads running. This will help in saving money invested and there are 3 ways of doing that for compute services

**Tip 1**

_**Start & Stop**_
Options are provided from AWS EC2 console and other ways are to use API, SDK, AWS CLI commands to start & stop the servers 

**Tip 2**

_**AWS Lambda & AWS EventBridge**_

With AWS Lambda, it is both simple & easy to write python scripts for stopping & starting servers, based on tags(Key, Values). Tags basically, helps AWS Lambda functions to identify the servers to be stopped or started, accordingly.

So the second part is on what frequency this lambda function has to be executed so that the servers are identified for start/stop operations. Here comes, AWS EventBridge cron tab scheduler options where each lambda, can be triggered say evening 6PM daily or every Friday or Monday, as needed. This ensures that functions are triggered and servers are taken care of. 

Refer at [Link](https://github.com/gvnirmalaa/utilities)

**Tip 3**

_**AWS Instance Scheduler**_
Finally, fully automated, easy to deploy, configure, AWS provided custom solution is AWS Instance scheduler, which uses lot of services other than AWS Lambda, AWS SNS etc to perform the same stop/start activities on EC2. To know further, please visit AWS Documentation at [Link](https://aws.amazon.com/solutions/implementations/instance-scheduler-on-aws/)

Go with any option that best suits your business needs !!
Learning Hacking: A Comprehensive Guide
Tags: tutorial, cybersecurity, hacking, beginners
Published: 2023-09-23 04:09:09

# Learning Hacking: A Comprehensive Guide

Hacking is a fascinating field that involves understanding computer systems and networks to identify vulnerabilities and secure them. If you're looking to start your journey into the world of hacking, here are some recommendations to get you started:

## 1. **Understand the Basics**

Before diving into hacking, it's crucial to have a strong foundation in computer systems, networking, and operating systems. Familiarize yourself with concepts like networking protocols, operating system architecture, and programming languages.

## 2. **Learn Networking**

Understanding how computer networks function is essential for any aspiring hacker. Learn about TCP/IP, DNS, routing, and network security.

- [Cisco Networking Basics](https://www.cisco.com/c/en/us/training-events/training-certifications/certifications/entry/ccent.html)

## 3. **Master a Programming Language**

Proficiency in a programming language is a must. Python is a popular choice due to its versatility and wide range of hacking tools available.

- [Learn Python](https://www.learnpython.org/)

## 4. **Study Cybersecurity Fundamentals**

Understanding cybersecurity principles is vital to becoming a skilled hacker. Familiarize yourself with encryption, firewalls, and other security measures.

- [Cybrary](https://www.cybrary.it/)

## 5. **Explore Hacking Tools and Techniques**

There are numerous hacking tools available. Learn how to use them responsibly for penetration testing and ethical hacking.

- [Metasploit](https://www.metasploitunleashed.com/)
- [Wireshark](https://www.wireshark.org/)

## 6. **Participate in Capture the Flag (CTF) Challenges**

Engage in CTF challenges to apply your knowledge and improve your hacking skills. CTF platforms host various competitions where you can solve security-related challenges.

- [CTFTime](https://ctftime.org/)

## 7. **Join Online Communities**

Join hacking communities and forums to connect with like-minded individuals, share knowledge, and stay updated on the latest trends and techniques in hacking.

- [Hack The Box Forums](https://forum.hackthebox.eu/)

## Conclusion

Learning hacking requires dedication, continuous learning, and responsible usage of acquired knowledge. Always prioritize ethical hacking practices and adhere to legal and ethical boundaries.

Happy hacking and stay curious!
A Beginner's Guide to Bug Bounty Programs
Tags: hacking, cybersecurity, beginners, programming
Published: 2023-09-23 04:06:10

# A Beginner's Guide to Bug Bounty Programs

Bug bounty programs are initiatives offered by organizations to encourage security researchers, ethical hackers, and cybersecurity enthusiasts to identify and report security vulnerabilities in their systems. In return, these individuals receive monetary rewards, recognition, or other incentives. Here's a comprehensive guide to help you understand bug bounty programs and how you can become a bug bounty hunter.

## What is Bug Bounty?

A bug bounty program is a platform offered by companies, government organizations, or non-profits that invite the public to find and report security vulnerabilities within their software or hardware. The primary goal is to improve security and protect against potential cyber threats.

Security researchers, often referred to as bug bounty hunters, participate in these programs to discover and report bugs, vulnerabilities, or weaknesses. The reported issues are then analyzed by the organization, and if valid and significant, the hunter is rewarded for their efforts.

## Getting Started as a Bug Bounty Hunter

If you're interested in becoming a bug bounty hunter, here are steps to get started:

### 1. **Familiarize Yourself with Security Concepts**

   - Learn about common security vulnerabilities like cross-site scripting (XSS), SQL injection, and others.
   - Understand different attack vectors and how they can be exploited.

### 2. **Learn Basic Web Technologies**

   - Gain a strong understanding of web technologies such as HTTP, HTML, CSS, JavaScript, and databases.

### 3. **Master Bug Hunting Tools**

   - Familiarize yourself with bug hunting tools like Burp Suite, OWASP ZAP, Nmap, and Wireshark.

### 4. **Understand Bug Bounty Platforms**

   - Research popular bug bounty platforms like HackerOne, Bugcrowd, and others to understand their processes and reporting mechanisms.

### 5. **Read Bug Bounty Write-ups**

   - Study bug bounty write-ups to learn about successful bug hunting strategies and techniques.

### 6. **Start Ethical Hacking Practice**

   - Set up a testing environment (e.g., a virtual lab) to practice ethical hacking legally and safely.

## Tips for Bug Bounty Success

1. **Communication is Key:**
   - Clearly and professionally communicate your findings to the organization. Provide detailed reports with steps to reproduce the issue.

2. **Stay Updated:**
   - Regularly update your knowledge on emerging security threats and vulnerabilities.

3. **Persistence:**
   - Don't get discouraged by initial rejections. Keep refining your skills and trying different platforms.

4. **Collaborate:**
   - Collaborate with the bug bounty community, participate in forums, and learn from others' experiences.

5. **Think Outside the Box:**
   - Be creative in your approach to finding vulnerabilities. Think like a hacker to identify potential weaknesses.

By following these steps and tips, you'll be well on your way to embarking on a bug bounty hunting journey. Happy bug hunting!