1. Introduction to AWX ● AWX is the open-source version of Ansible Tower (the upstream product of the enterprise version), a visual interface server automation deployment and operation management platform. ● AWX provides a web-based user interface, REST API, and a task engine built on Ansible. ● The graphical AWX makes it easier to orchestrate … Read more
1. Overview of LoRa and LoRaWAN LoRa (Long Range) and LoRaWAN are important representatives of Low Power Wide Area Network (LPWAN) technologies, widely used in the Internet of Things (IoT) field, such as smart agriculture, environmental monitoring, smart cities, and industrial automation. LoRa is a physical layer wireless modulation technology known for its long range, … Read more
When deploying a LoRaWAN network, the choice of antenna is one of the key factors affecting communication performance and device stability. Especially for outdoor LoRaWAN gateways, it is common to find that they predominantly use N-type connector antennas instead of other types of antenna interfaces. So, why has the N-type connector antenna become the preferred … Read more
1. Based on Ubuntu Operating System Unlike traditional MCU architectures, the Manthink gateway adopts a Linux system based on Ubuntu, providing powerful computing capabilities and scalability, supporting local databases, edge computing services, and more. 2. Integrated Edge Version of ThinkLink NS Manthink has embedded the Edge version of the ThinkLink network server in the gateway, … Read more
Click on the blue text above“ Reply with “666” to receive the most popular Java core knowledge summary on the internet Is He Tiantian here? https://www.jianshu.com/p/68c30beca612 Code example: https://github.com/TiantianUpup/http-call Introduction The reason for writing this article stems from a conversation with a friend. This touches on my knowledge blind spot, so I started by searching … Read more
HTTP Identification Control HTTPS Identification Control Custom Identification Control Background: During work hoursIT cannot access video websites Background Analysis:HTTP message, which field identifies the URL? Blocking HTTP websites, should the three-way handshake be allowed first? HTTP Identification Working Principle: HTTP website identification, after the terminal device resolves the domain name through DNS, completes the three-way … Read more
WireMock is a widely used and open-source HTTP service mocking tool, suitable for various scenarios such as interface automation, unit testing, and integration testing. WireMock can run as a standalone server or be embedded in test code, supporting multi-language SDKs and multiple protocols such as REST and SOAP. The core advantages of WireMock lie in … Read more
HTTP (Hypertext Transfer Protocol) is the foundation protocol for data communication on the World Wide Web (WWW) and is one of the most widely used protocols in modern internet applications. 1. Overview of HTTP 1.1 Basic Concepts Definition An application layer protocol based on the client-server model Function Specifies how clients and servers request and … Read more
Head-of-Line Blocking in HTTP/2 Although HTTP/2 uses “frames”, “streams”, and “multiplexing” to eliminate “head-of-line blocking”, these techniques are applied at the application layer. However, at the lower layer, specifically in the TCP protocol, “head-of-line blocking” can still occur. TCP has a special “packet retransmission” mechanism to ensure reliable transmission. Lost packets must wait for retransmission … Read more
Introduction <span><span>HttpClient</span></span> is a modern <span><span>API</span></span> in <span><span>.NET</span></span> used for sending <span><span>HTTP</span></span> requests and receiving <span><span>HTTP</span></span> responses, replacing the outdated <span><span>WebClient</span></span> and <span><span>HttpWebRequest</span></span> classes. <span><span>HttpClient</span></span> is provided in <span><span>.NET Framework 4.5</span></span> + and <span><span>.NET Core/.NET 5+</span></span>, based on a message handling pipeline (<span><span>message handler pipeline</span></span>), and is a modern <span><span>HTTP</span></span> client library. Compared to earlier … Read more