Year: 2025

Ansible Configuration File: From Basics to Advanced

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Ansible Configuration File: From Basics to Advanced

Ansible Configuration File Ansible looks for a file named <span>ansible.cfg</span> as its configuration file. [root@ansible ansible]# ansible –version ansible [core 2.16.3] config file = /root/ansible/ansible.cfg configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules'] ansible python module location = /usr/local/lib/python3.12/site-packages/ansible_core-2.16.3-py3.12.egg/ansible ansible collection location = /root/.ansible/collections:/usr/share/ansible/collections executable location = /usr/local/bin/ansible python version = 3.12.8 (main, Dec 12 2024, … Read more

From Physical Layer to Application Layer: Layered Design of Bluetooth Protocol Stack and the Evolution of BLE Low Power Consumption

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From Physical Layer to Application Layer: Layered Design of Bluetooth Protocol Stack and the Evolution of BLE Low Power Consumption

The Bluetooth protocol architecture adopts a layered structure, covering multiple protocol components from the physical communication at the bottom layer to the application data transmission at the top layer. The Bluetooth protocol stack is suitable for Classic Bluetooth (BR/EDR) and Bluetooth Low Energy (BLE), which have similar basic architectures, but BLE is optimized for low … Read more

BLE DTM Testing: The “Health Check Expert” for Bluetooth RF Performance

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BLE DTM Testing: The "Health Check Expert" for Bluetooth RF Performance

BLE DTM Testing In today’s rapidly developing Internet of Things (IoT) landscape, Low Energy Bluetooth (BLE) technology is widely used in wearable devices, smart homes, medical devices, and other fields due to its advantages of low power consumption and low latency. BLE DTM testing, as an important means of testing Bluetooth RF performance, acts like … Read more

What is LoRaWAN™? An Overview of LoRa and LoRaWAN Technologies

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What is LoRaWAN™? An Overview of LoRa and LoRaWAN Technologies

LoRaWAN™ What is it? A technical overview of LoRa® and LoRaWAN Introduction This document aims to provide an introductory technical overview of LoRa® and LoRaWAN™. Low-Power Wide-Area Networks (LPWAN: Low–Power, Wide-Area Networks) are expected to support a significant portion of the billions of devices anticipated in the Internet of Things (IoT) space. LoRaWAN™ is designed … Read more

Seven Methods for Implementing HTTP Calls in Spring Boot

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Seven Methods for Implementing HTTP Calls in Spring Boot

Hello everyone, I am Xia Yi. Today I will share about HTTP calling methods. Most projects are currently using the Spring Boot framework, and HTTP calls are an inevitable part of daily development. Whether calling third-party APIs or implementing communication between microservices, HTTP requests play a crucial role. This article will introduce seven efficient and … Read more

HTTP/3 Released!

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HTTP/3 Released!

↓Recommended Follow ↓ On June 6, Robin Mark, a member of the IETF QUIC (Internet Engineering Task Force) and the HTTP working group in Belgium, announced on Twitter that “after 5 years, HTTP/3 has finally been standardized as RFC 9114. Together with RFC 9204 (QPACK header compression) and RFC 9218 (extensible priorities), it opens a … Read more

Configuring Nginx to Support HTTP/2 with Basic Optimization

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Configuring Nginx to Support HTTP/2 with Basic Optimization

With the rapid development of the internet, HTTP/2 has become the standard protocol for modern website optimization. Compared to HTTP/1.1, HTTP/2 introduces features such as multiplexing, header compression, and server push, which can significantly improve webpage loading speed, especially for resource-intensive websites. This article will detail how to enable HTTP/2 support on Nginx and perform … Read more

Performance Evaluation of Go HTTP Frameworks: Fiber vs. Gin vs. Go Standard Library

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Performance Evaluation of Go HTTP Frameworks: Fiber vs. Gin vs. Go Standard Library

This content is a translation and organization of the performance evaluation by the well-known performance reviewer Anton Putra Fiber vs. Gin vs. Go (stdlib): Performance (Latency – Throughput – Saturation – Availability)[1]: Performance (Latency – Throughput – Saturation – Availability), with appropriate reductions, and the relevant content and conclusions are based on the original source. … Read more

Yan’an University Teaching Management Information Service Platform

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Yan'an University Teaching Management Information Service Platform

Yan’an University Teaching Management Information Service Platformhttp://jwglxt.yau.edu.cn/jwglxt The Yan’an University Teaching Management Information Service Platform is an important system for teaching management at Yan’an University. Platform Access Methods: Access via URL: You can log in to the Yan’an University Teaching Management Information Service Platform by visiting http://jwglxt.yau.edu.cn/jwglxt.Login through the School Online Service Hall: After logging … Read more

Want Files to Open Directly in the Browser? Master These HTTP Header Settings!

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Want Files to Open Directly in the Browser? Master These HTTP Header Settings!

Why Are Your Files Being Forced to Download? The key combination of two HTTP response headers that triggers the “Save As” dialog in the browser: 1Content-Type (Content-Type) This header acts like a “language translator” for files and must accurately match the file format. For example, if a PDF file is incorrectly labeled as text/plain, the … Read more