what is tls handshake

, the transport layer TCP is based on the network layer of IP protocol, and the application layer of the HTTP protocol is based on the transport layer of the TCP protocol, and the socket itself is not a protocol, as mentioned above, it just provides a TCP or UDP programming interface.Here are some of the important concepts that are often encountered in a written

The domain name resolves to an IP address; TCP connection to the destination host (three-time handshake); Send and receive data (browser and destination host start HTTP access process); Disconnect the TCP connection from the destination host (four waves); See more: 78753232Open the browser, enter the URL in the Address bar, enter, the page content appears. What happened to the whole process?

What is the TCP/IP protocol. first, the TCP/IP model The TCP/IP protocol model (transmission Control protocol/internet Protocol) contains a series of network protocols that form the basis of the Internet and is the core protocol of the Internet. The TCP/IP-based Reference model divides the protocol into four tiers, namely the link layer, the network layer, the t

, then we make multi-threaded map what? Computationally dense who uses python? There's an article in the Python wiki that lists in more detail why you can't do it gil:globalinterpreterlock If it is a new language, avoid the GIL is relatively easy to restrict the C extension of the interface only to go to the FFI, do not expose the internal implementation of

Concept and function of IP protocol the concept and function of TCP protocol three-time handshake process of TCP protocol the concept and function of the DNS relationship between HTTP and TCP, IP, and DNS first, the concept and role of IP protocol The concept of IP: English for the Internet Protocol, translated into Internet Protocol, located in the network layer. This Internet protocol sounds a bit exaggerated, but it's true because almost all system

also to save the corresponding relationship in the cache, in case the next time another user query, you can directly return the results, Speed up network access. Knowledge Expansion: 1) What is DNS. DNS (domain Name System), a distributed database of domain names and IP addresses that are mapped to each other on the Internet, makes it easier for users to access the Internet without remembering the number

（转自http://www.linux178.com/web/httprequest.html）写的太好了，转一个。For the HTTP protocol, refer to the following:HTTP协议漫谈 http://kb.cnblogs.com/page/140611/HTTP协议概览 http://www.cnblogs.com/vamei/archive/2013/05/11/3069788.html了解HTTP Headers的方方面面 http://kb.cnblogs.com/page/55442/When we enter www.linux178.com in the address bar of the browser, and then go to enter, enter this moment to see what happened to the page?Domain name resolution--Initiates a TCP 3

Original address: http://www.cnblogs.com/engeng/articles/5959335.htmlRecently, the interview is often asked this question, want to interview the interviewer wants to examine the network knowledge, see whether this knowledge has formed the architecture.When we enter www.linux178.com in the address bar of the browser, and then go to enter, enter this moment to see what happened to the page?The following proce

When we enter www.linux178.com in the address bar of the browser, and then go to enter, enter this moment to see what happened to the page?The following procedure is for personal understanding only:Domain name resolution--Initiates a TCP 3 handshake--initiates an HTTP request after the TCP connection is established--th

HTTP protocolFor the HTTP protocol, refer to the following:HTTP协议漫谈 http://kb.cnblogs.com/page/140611/HTTP协议概览 http://www.cnblogs.com/vamei/archive/2013/05/11/3069788.html了解HTTP Headers的方方面面 http://kb.cnblogs.com/page/55442/When we enter www.linux178.com in the address bar of the browser, and then go to enter, enter this moment to see what happened to the page?Domain name resolution--Initiates a TCP 3 handshake