https://zheng-bobo.github.io/en/categories/network/ Recent content in Network on Blowing in the wind Hugo -- gohugo.io en Thu, 11 Feb 2021 09:45:47 +0800 https://zheng-bobo.github.io/en/post/linux-io-multiplexing-select-poll-epoll/ Thu, 11 Feb 2021 09:45:47 +0800 https://zheng-bobo.github.io/en/post/linux-io-multiplexing-select-poll-epoll/ Introduction  Before reading this article, you can first understand the five I/O models of Liunx  References: I/O Models –Section 6.2 of “UNIX® Network Programming Volume 1, Third Edition: The Sockets Networking” by Richard Stevens The following is the text of the article  One of the basic concepts of Linux (actually Unix) is that everything in Unix/Linux is a file. Each process has a file descriptor table that points to files, sockets, devices, and other operating system objects related to the process. https://zheng-bobo.github.io/en/todo/csrf-and-cors-introduction/ Thu, 04 Feb 2021 17:32:47 +0800 https://zheng-bobo.github.io/en/todo/csrf-and-cors-introduction/ Introduction  Before introducing CRSF(Cross-site request forgery)&CORS(Cross-origin resource sharing), we first introduce HTTP. If readers are familiar with HTTP, they can skip this content directly. HTTP request An HTTP request consists of four parts: request line, request header, blank line and request body. 1 2 3 4 5 6 7 GET /mix/76.html?name=kelvin&password=123456 HTTP/1.1 Host: www.fishbay.cn Upgrade-Insecure-Requests: 1 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56. https://zheng-bobo.github.io/en/post/http-1-1-vs-http-2/ Thu, 16 Jan 2020 10:25:00 +0800 https://zheng-bobo.github.io/en/post/http-1-1-vs-http-2/ HTTP 1.1 In January 1997, HTTP/1.1 version was released, only half a year later than version 1.0. It further improved the HTTP protocol and has been used to this day 20 years later, and is still the most popular version. Main optimization points: Support long connection by default HTTP/1.1 supports persistent connections and request pipelining. Persistent connections reuse established TCP connections and avoid repeating the RTT cost of the three-way handshake.