Docker

API vs Load Balancer vs Reverse proxy vs Forward proxy vs Service Mesh

🚨 Attention: A Critical Next.js vulnerability

What Happened?

A massive vulnerability (CVE-2025-29927) was just found in Next.js, a popular framework for building web apps with React. This flaw, rated 9.1/10 for severity, lets attackers slip past security checks using a simple trick—a special header. It affects self-hosted Next.js apps (versions 11.1.4 to 15.2.2) that use middleware to protect pages, like admin dashboards. If unpatched, hackers could access restricted areas—yikes!

How Big Is It?

Pretty darn big! Millions of developers use Next.js, and this bug leaves tons of apps exposed. The good news? It’s fixed in version 15.2.3 and up. Please upgrade to newest version to stay safe!

https://thehackernews.com/2025/03/critical-nextjs-vulnerability-allows.html

GIT

Anatomy of a Hacker

GIT CHEAT SHEET

What is web3

How React's ES6 syntax is different from ES5 syntax?

1. require vs. Import
// ES5
var React = require('react');

// ES6
import React from 'react';

2. exports vs. export

// ES5
module.exports = Component;

// ES6
export default Component;




3. component and function

// ES5
var MyComponent = React.createClass({
render: function() {
return(
<h3>Hello JavaTpoint</h3>
);
}
});

// ES6
class MyComponent extends React.Component {
render() {
return(
<h3>Hello Javatpoint</h3>
);
}
}

4. props

// ES5
var App = React.createClass({
propTypes: { name: React.PropTypes.string },
render: function() {
return(
<h3>Hello, {this.props.name}!</h3>
);
}
});

// ES6
class App extends React.Component {
render() {
return(
<h3>Hello, {this.props.name}!</h3>
);
}
}