Ensuring that your web application remains live and resilient against potential crashes is a critical aspect of deployment. If you’re using Next.js, one of the tools you can employ to achieve this is pm2. In this blog post, I’ll guide you through the process of setting up and running your Next.js application with pm2. What is PM2? PM2 is a powerful, production-ready process manager for Node.js applications. It ensures that your application remains online by auto-restarting in case of crashes. Moreover, with its cluster mode, you can run your application across multiple CPU cores. Let’s Dive In! 1. Installing PM2 If pm2 isn’t already part of your toolset, installing it ……

JavaScript is an ever-evolving language, continuously being updated with new methods and features to enhance its capabilities. Today, we’ll delve into some of the latest additions to the JavaScript repertoire. We’ll provide practical examples for each to give you a hands-on feel of how they operate. 1. Array.prototype.toSorted This is an effortless way to sort arrays. Check out the example below: let arr = [5,4,2,3,1]; console.log(arr.toSorted()); // [1, 2, 3, 4, 5] 2. Array.prototype.toReversed Reversing arrays is now simpler: let arr = ["a", "b", "c", "d", "e"]; console.log(arr.toReversed()); // ['e', 'd', 'c', ……

When deploying a new version of a User Interface (UI) application, it’s crucial to ensure that your users access the updated content without the hassles of manually clearing their browser cache. This becomes even more significant in the context of single-page applications (SPAs), where a large part of the application logic is loaded just once and executed on the client-side. This blog post will dive into several strategies that can be employed to keep your application fresh for users. Versioned Filenames What Are They? By appending a hash or version number to the filenames of assets such as CSS and JS files, you ensure that browsers download the new files whenever there’s a new build because ……

Premature optimization is a prevalent phenomenon in software development, where a programmer prioritizes optimizing aspects of the code that may not require optimization, often before the program’s behavior and requirements have been fully understood or defined. This process can unnecessarily complicate the code and paradoxically decrease its efficiency. In this article, we will delve into the concept of premature optimization, explore its common manifestations, and discuss why it’s essential to avoid it. Understanding Premature Optimization Premature optimization is akin to putting the cart before the horse. It is the act of making changes to your codebase with the aim of ……

This guide will walk you through the process of installing the latest version of Apache Kafka on the latest version of Ubuntu. Prerequisites A system running the latest version of Ubuntu A user account with sudo privileges Step 1: Update the System Before installing Kafka, it’s a good idea to update the system packages. Open a terminal and run the following commands: sudo apt update sudo apt upgrade Step 2: Install Java Kafka requires Java to run. Install the OpenJDK package by running the following command: sudo apt install openjdk-11-jdk Verify the Java installation by running: java -version Step 3: Create a separate user for managing kafka Here’s how you can create a new user ……

HTTP headers are crucial tools in web data transfers, allowing for the smooth and effective exchange of additional data between web clients and servers. These headers, particularly Cache-Control, ETag, and Last-Modified, play a pivotal role in establishing effective caching policies, ultimately ensuring that clients always receive the most recent version of a resource while minimizing unnecessary data transfers. Let’s dive deeper into each of these HTTP headers and explore their functions within the web data exchange ecosystem. Cache-Control: Orchestrating Your Web Cache Cache-Control is a vital HTTP header field that articulates directives for caching processes in both client requests ……

When you’re using sequence numbers in a database, there are several potential issues to be aware of: Concurrency: The most common problem with sequence numbers is dealing with concurrent updates. If multiple processes or threads are updating the sequence number at the same time, you could end up with conflicts or duplicates. Performance: If a table with a sequence number is updated frequently, it can become a performance bottleneck. Every time a row is inserted or updated, the sequence number must be updated as well, which can slow down the overall performance. Scalability: If the sequence number gets very large, it could potentially exceed the storage capacity for its data type. ……

Short Polling Short polling is a client-server communication method where the client periodically sends requests to the server to check if there is any new data available. This is like constantly asking “Is there any new data?” at regular intervals. If there is new data, the server responds with it; if not, it responds saying there’s nothing new. Long Polling Long polling is a variation of the traditional polling technique and allows emulation of an information push from a server to a client. With long polling, the client requests information from the server in a similar way to short polling, but with the expectation that the server may not respond immediately. If the ……

Cookie stealing, also known as session hijacking or cookie hijacking, is a type of attack where an attacker gains unauthorized access to a user’s session by obtaining their session cookie. This article will explore various methods used by hackers to perform cookie stealing and provide tips on how to test and protect your application against these attacks. Methods of Cookie Stealing Hackers can perform cookie stealing through various methods, such as: Exploiting Cross-Site Scripting (XSS) vulnerabilities: Attackers can inject malicious scripts into vulnerable websites to steal users’ session cookies. Sniffing unencrypted network traffic: Attackers can intercept and steal cookies ……

Using Certbot with Manual Hooks for Google Cloud Platform (GCP) Certbot is a popular tool for managing SSL certificates provided by Let’s Encrypt. SSL certificates are crucial for ensuring secure connections between web servers and clients. This tutorial will guide you through setting up a manual DNS challenge for domain validation in Google Cloud Platform (GCP) using Certbot. Prerequisites Before you begin, ensure you have the following: A Google Cloud Platform account A registered domain Google Cloud SDK installed and configured Step-by-step guide 1. Install Certbot on the Google Cloud VM instance For Debian/Ubuntu: sudo apt-get update sudo apt-get install certbot For CentOS/RHEL: ……

Rate limiting is a technique to control the rate at which clients can make requests to a server, protecting it from excessive traffic, abuse, or denial-of-service attacks. In Nginx, there are two main types of rate limiting: Connection Limiting (limit_conn): This restricts the number of simultaneous connections allowed from a single IP address. You can use the limit_conn module in Nginx to configure connection limiting. Request Rate Limiting (limit_req): This restricts the rate at which requests are processed, typically measured in requests per second (RPS). You can use the limit_req module in Nginx to configure request rate limiting. Here’s how to configure these types of rate ……

To enable stronger type checking in a TypeScript project, you can configure the tsconfig.json file with stricter options. Here’s how you can do it: Create or open the tsconfig.json file in your project’s root directory. Add or modify the following options within the "compilerOptions" object to enable stronger type checking: { "compilerOptions": { "strict": true, "noImplicitAny": true, "strictNullChecks": true, "strictFunctionTypes": true, "strictPropertyInitialization": true, "strictBindCallApply": true, "noImplicitThis": true, "alwaysStrict": true, "noImplicitReturns": true, ……

This blog assumes that you have docker and docker-compose installed on your machine Getting started Create a Dockerfile # Use the official Python 3.10 image FROM python:3.10 # Set the working directory WORKDIR /app # Install system dependencies RUN apt-get update && \ apt-get install -y libgl1-mesa-glx poppler-utils && \ apt-get clean && \ rm -rf /var/lib/apt/lists/* # Copy requirements and install Python dependencies COPY requirements.txt . RUN pip install --no-cache-dir -r requirements.txt && \ python -m pip install --no-cache-dir 'git+https://github.com/facebookresearch/detectron2.git' && \ pip install --no-cache-dir ……

Getting started Create a requirements.txt file with the below contents. torch transformers fastapi uvicorn pydantic pypdf2 python-multipart Install the packages by running: pip install -r requirements.txt Here we are going to use the has-abi/extended_distilBERT-finetuned-resumes-sections Create a main.py and add # Import necessary libraries and models from transformers import AutoTokenizer, AutoModelForSequenceClassification from fastapi import FastAPI, File, UploadFile from pydantic import BaseModel from typing import List import torch import PyPDF2 import re import io # Import necessary libraries tokenizer = ……

Main Novice computer users fear using the terminal, but it’s actually easier and more efficient than using a graphical interface for certain tasks. Many novices are afraid of the terminal or consider it difficult to use. It’s actually easier to accomplish tasks with the terminal than without. Automation: The terminal is an excellent tool for automating repetitive tasks or executing scripts. You can use tools like cron to schedule tasks to run at specific times, or write shell scripts to perform complex operations. Remote access: When accessing a remote server, using a graphical interface can be slow and resource-intensive. The terminal is much more efficient in this scenario, as ……