ngx_http_limit_conn_module Module 1. The ngx_http_limit_conn_module module limits the number of connections based on the configured key, such as limiting the number of connections based on the IP address. 2. Only connections that are currently being processed by the server and whose request headers have been read will be counted towards the limit. limit_conn_zone Directive 1. … Read more
1. Overview of HTTP Flood Attacks An HTTP flood attack is a type of Distributed Denial of Service (DDoS) attack where the attacker overwhelms the target server with a large number of forged HTTP requests (such as GET/POST), exhausting server resources (like connection count, CPU, memory) and preventing legitimate users from accessing the service. Unlike … Read more
Introduction I originally planned to continue sharing knowledge related to Kerberos, but the Kerberos protocol is quite complex and may require dozens of articles to fully describe. Therefore, I thought it would be better to intersperse discussions of other common network authentication protocols. The preliminary plan includes the following: HTTP Basic Auth, Digest Auth, OAuth, … Read more
Function Introduction When editing a test plan in JMeter, if there are multiple Sampler requests with the same parameters and settings, such as the protocol, IP address, and port number of the service being requested, configuring each Sampler individually would increase redundancy and workload. Additionally, if the server address changes in the future, it would … Read more
Recently, I researched monitoring group messages on Telegram and planned to extract key information from the received messages to save it to my local database. I utilized the code from the open-source repository https://github.com/Riniba/TelegramMonitor?tab=readme-ov-file, adding HTTP requests to it. First, open the source code. Right-click to open the Manage NuGet Packages and add two packages. … Read more
Understanding Packet Loss Packet loss, as the name suggests, refers to data packets that are “lost” during network transmission and fail to reach their destination. The HTTP protocol runs on the TCP/IP protocol stack, and packet loss can occur at the network layer, such as when a router is overwhelmed and drops packets, or at … Read more
Advantages of OkHttp and Best Practice Examples // Add dependencies implementation("com.squareup.okhttp3:okhttp:4.12.0") implementation("com.squareup.okhttp3:logging-interceptor:4.12.0") — Efficient Performance with HTTP/2 Connection Reuse // In e-commerce applications, batch load product images and details fun loadProductData() { val client = OkHttpClient.Builder() .build() // Batch request product data val requests = listOf( Request.Builder().url("https://api.example.com/products/1").build(), Request.Builder().url("https://api.example.com/products/1/images").build(), Request.Builder().url("https://api.example.com/products/1/reviews").build() ) // Execute requests concurrently (utilizing … Read more
In modern application development, HTTP requests are one of the core ways to interact with servers.<span><span>HttpClient</span></span> is the core class in the .NET framework for handling HTTP requests, and the <span><span>PostAsync</span></span> method is an important tool for implementing asynchronous POST requests. This article will delve into the basic concepts, advantages, use cases, code examples, error … Read more
Introduction to HTTP Protocol The HTTP protocol is a text-based transmission protocol that operates at the application layer of the OSI network model. The HTTP protocol communicates through request-response interactions between clients and servers. The protocol has been split from the previous RFC 2616 into six separate protocol specifications (RFC 7230, RFC 7231, RFC 7232, … Read more
▼ Click the card below to follow me ▲ Click the card above to follow me Aiohttp: The Superhero of Asynchronous Web Requests! In Python network programming, asynchronous operations have become a key technology for enhancing performance. Aiohttp is the absolute ace in this field, allowing your web requests to be as fast and efficient … Read more