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PYTHON

  BRIEF HISTORY OF PYTHON: Created in 1990 by Guido Van Rossum. python 3 released in 2008. Specifically designed as an easy to use language. High focus on readability of code. It is used for: web development (server-side), software development, mathematics, system scripting. Great documentation online : https://docs.python.org/3/ Python 3 Notebooks can be found here: https://github.com/Pierian-Data/Complete-Python-3-Bootcamp The older Python 2 Notebooks can be found here: https://github.com/jmportilla/Complete-Python-Bootcamp Developer Must-Know Ports Guide Web Development 80 - HTTP (Websites) 443 - HTTPS (Secure Websites) Backend Development 8080 - Default Java Server (Spring Boot, Tomcat) 3000 - React / Node.js Database 3306 - MySQL 5432 - PostgreSQL 1521 - Oracle DB Server Access 22 - SSH (Remote server login) Email 587 - SMTP Secure (Send emails) File Transfer 21 - FTP Remote Desktop 3389 - RDP Quick Troubleshooting Website issue: check 80/443 Backend issue: check 8080 Databas...
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Ubuntu VM

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REACT JS

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vm

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  VIRTUAL MACHINE CREATION Name of the machine. Select os version. RAM allocation. Hardware allocation. CPU allocation. Network (bridge network). OS installation. sucessfully installed windows os. Build the infra for application deployment Project Name: Student Tracker Pre-request for the application deployment: OS: Windows/Linux JAVA: JDK version 23 or later and setup JDK envinorment variable  Application server: Tomcat 9.0 ---> firewall Database: MySQL By deafut MYSQL databse only connect with localhost:3306 If user connecting the Database connection with IP address  : 192.168.29.55:3306. Need to be  allow the IP address and following the steps 1.Stop Mysql service 2.add the entry on my.ini file bind-address = 0.0.0.0 C:\ProgramData\MySQL\MySQL Server 8.0\my.ini 3. start Msql service 4.Also creare new user and allow the all connection  C:\Program Files\MySQL\MySQL Server 8.0\bin>mysql.exe -u root -p Enter password: ********* Welcome to the MySQL monitor....
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JSP TUTORIAL

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INTRODUCTION OF JSP: 1.What is jsp. 2.How jsp works in Servlet. 3.JSP VS Servlet. 4.JSP life Cycle. What is jsp: JSP ( Java Server Page) is a server side technology used to create dynamic , paltform-indepentent web application using java. When jsp page requested by User, it is complied into a servlet by the server and the server handle the request. How jsp Works (behind the scenes): A (.jsp) file is requested by a user.. The JSP Engine on the server converts it into the Servlet.   The servlet is complied and executed. The Response (HTML) is send back to the browser. JSP VS Servlet: JSP life Cycle: LINK : https://data-flair.training/blogs/jsp-life-cycle/ DIFFERENCE BETWEEN A WEBSERVER ,WEB CONTAINER AND AN APPLICATION SERVER: WEB SERVER:   It is receives  HTTP request , intercepts it. It also processes the HTTP response to the web browser of the client. EX: Apache Web server. WEB CONTAINER : A web container is J2EE compliant implementation.Its mains the job is run the ru...
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