Xiujun Ma

Latest — Apr 2, 2025

How to Configure SSH on FreeBSD for Maximum Security

Secure Shell (SSH) is an essential tool for managing servers remotely, but an improperly configured SSH server can expose your system to serious risks. In this post, we’ll walk through best practices to harden SSH on FreeBSD and lock down remote access. Step 1: Install and Enable OpenSSH FreeBSD

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Next.js Server Actions Integration with MySQL to Build a CRUD App

Next.js 13+ introduces Server Actions, an innovative feature that simplifies server-side logic handling while keeping API calls efficient. When combined with MySQL, this enables developers to build powerful, server-driven applications with optimized database interactions. In this blog post, we'll walk through integrating Next.js Server Actions with

How to Deploy a Next.js Application with Nginx on FreeBSD

How to Deploy a Next.js Application with Nginx on FreeBSD Next.js, a popular React framework for building server-rendered applications, offers robust features like static generation, server-side rendering, and API routes. FreeBSD, known for its stability and performance, paired with Nginx as a reverse proxy, is a great environment

SEO Basics: A Beginner’s Guide to Search Engine Optimization

In today’s digital age, having a strong online presence is crucial for any business or personal brand. Search Engine Optimization (SEO) is a fundamental tool that helps improve your visibility on search engines like Google, Bing, and Yahoo. This guide will introduce you to the basics of SEO, explain

Automating Tasks on FreeBSD with Cron and Ansible

Automation is a key aspect of modern system administration, improving efficiency, consistency, and reliability. FreeBSD offers powerful tools for automation, including cron for scheduling tasks and Ansible for configuration management and automation. This blog post explains how to use cron jobs for task automation and how to manage FreeBSD systems

Exploring the Web Serial API: Connecting Your Web Apps to Hardware

The Web Serial API is an exciting feature that allows web applications to directly communicate with serial devices connected to a user's computer. This opens up a range of possibilities for web developers, especially in the fields of hardware interfacing, IoT, and robotics. In this blog post, we&

Raspberry Pi Pico 2 Lands with (Drum Roll) RISC-V Cores: A New Chapter in Microcontroller Innovation

The Raspberry Pi Foundation has taken a significant step forward with the release of the Raspberry Pi Pico 2, the first of its products to feature RISC-V cores. This shift from the traditional ARM architecture to RISC-V represents a monumental change in the microcontroller landscape, reflecting the growing popularity of

Optimizing FreeBSD for Performance: Tips and Tricks

FreeBSD is renowned for its performance and stability, but like any operating system, it can be further optimized to squeeze out the best performance for your specific use case. This blog post delves into advanced tips and tricks for optimizing FreeBSD performance, covering kernel tuning, file system tweaks, and network

Understanding Large Language Models

Large Language Models (LLMs) are at the forefront of artificial intelligence, transforming the way we interact with technology. From chatbots to content creation, LLMs have a wide range of applications. In this beginner's guide, we'll explore what LLMs are, how they work, and their various uses

High Availability and Load Balancing with FreeBSD

Ensuring high availability and load balancing for your services is crucial for maintaining uptime and performance, especially in production environments. FreeBSD provides powerful tools like HAProxy, CARP (Common Address Redundancy Protocol), and pfsync to achieve these goals. This guide will teach you how to set up a high availability and