There are a lot of articles on the internet about why TCP needs three handshakes when connecting, and four handshake when closing the connection. A lot of principles are spoken. So many people are hard to understand.In fact, there is only one sentence: The TCP connection is between two endpoints. Because the TCP connection is a reliable connection, it requires two endpoints to send the request and receive confirmation whether the connection is establi
code should be safe, of course, any program is a loophole, but for the vulnerabilities have been found, we should be in the procedure to prevent.
5, Content
Web site structure and procedures are completed, then you have to prepare to walk the lake, that is, the site online. After the online update 2~3 article original article, these articles are the basic skills of your test, his experiment, you still have no confidence to continue lakes, if there is, please continue to look down.
Ii. imitat
Tcp establishes a connection and disconnects. This problem is frequently asked during many interviews. Although many people know that tcp has three handshakes and four handshakes, however, if you want to explain the tcp connection and disconnection in detail, it will be a bit problematic ....
TCP (Transmission Control Protocol) Transmission Control Protocol
Three-way handshake:
TCP is the transmission control protocol used by the host to control the
TCP three-way handshake and four-way handshake 1. Establish a connection protocol (three-way handshake) (1) the client sends a TCP packet with SYN flag to the server. This is packet 1 during the three-way handshake. (2) The server responds to the client. This is the first packet in the three-way
TCP establishes a connection and disconnects. This problem is frequently asked during many interviews. Although many people know that TCP has three handshakes and four handshakes, however, if you want to explain the TCP connection and disconnection in detail, it will be a bit problematic .... TCP (Transmission Control Protocol) transmission control protocol three-way handshake: TCP is the transmission control protocol of the host to the host layer, pr
on the slowest point. If a and B constitute a software based on TCP communication, the execution efficiency of the software is measured by the efficiency of A, B, and the overall network, the network is the slowest point. The network delay time is limited by the existing physical level and cannot be solved. In program development, the fewer network transmission times, the better, the less time the network latency is.
In fact, the purpose of TCP three-way ha
In the TCP three-way handshake process, which stage does accept occur in the three-way handshake?
The first handshake: the client sends the SYN Packet (SYN = J) to the server.The second handshake: when the server receives the SYN packet, it must confirm the customer's Syn (ACK = J + 1) and send a ask packet (ask = K )
According to the project team members, the tool for converting IE7/8 to IE6 was very popular yesterday.ArticleLike I think, I think it is better to take care of IE 7/8 in a short time, and then Firefox in order to add chrome for long-term consideration. But I usually develop on Firefox and use jquery. There are still some problems in IE, and I need to modify it occasionally... Finally, we can test it on different browsers. Browsers of different versions still need to be installed on different co
Website SEO Ultimate Solution is to use the simplest way to quickly upgrade the ranking of the site, there is a certain basis of the seoer know, SEO on so several methods, and the use of these methods are likely to be optimized and be down right, K station. So what is the ultimate Web site SEO solution, the answer is very simple analysis of your competitors, competitors are your best teacher, we look at wha
It tells us that the reason is simple but very few people can do it, it is to understand oneself, understand the opponent. Whether do the industry website or do Taobao guest, or simply do a small station, contact to SEO optimization, keyword analysis is one of the first factors to consider. If the keyword has been determined well, then optimize from the inside of the page to the external layer of progressive, began our long and boring SEO road. At this stage, we have to do in addition to their o
It is easy to understand TCP's three-way handshake to establish a connection and the four-way handshake to release the connection.
Why do I wave three times when TCP establishes a connection?
Each TCP connection requires three phases: Connection establishment, data transmission, and connection release. The three-way handshake occurs in the connection establishmen
TCP connection three-time handshakeIn the TCP/IP protocol, the TCP protocol provides a reliable connection service with a three-time handshake to establish a connection .First handshake: When a connection is established, the client sends a SYN packet (SYN=J) to the server and enters the Syn_send state, waiting for the server to confirm;Second handshake: The serve
This is a creation in
Article, where the information may have evolved or changed.
This was a short blog post explaining what I believe that Go and Rust was not competitors.
Why people think Rust and Go is competitors
To explain why I think Rust and Go is not competitors, I want to lay out of the reasons why I think the question is being asked in the first place.
Whether it is newly built new station, or already has a considerable flow of old station, the competition is always there, that is, almost all of the SEO practitioners in the process of optimizing work, the inevitable step is to study the competitor's data, and then tap the key words, high-quality external chain platform and other information, It is then applied to its own site. On this issue, steeds small think, as a professional SEO practitioners will not be unfamiliar, but for those novice SE
In doing SEO, if we can do to their competitors salute, and learn, then the road will be able to walk a lot more spacious. Although you can despise each other strategically, in specific tactics, the more humble you are, the more you know how to learn from your competitors, not only is it absolutely helpful to your work, but it can also make your growth a great improvement, because sometimes the salute to yo
%) andHulu Plus(6.5%). in the overall consumer video market share,Netflixin37%occupies the highest ratio,YouTubepercentage26%ranked second,Cable TVpercentage25%ranked third, data onYouTubeis an upward trend, butCable TVin terms of the decline. ButNetflixstressed that it has been continuously concerned about the two competitors areAmazon Primeand theHBO, because these two companies have been very willing to invest money in content copyright trading and
To do channel optimization has been more than half a year, just beginning and many webmasters, like daily busy hair outside the chain. In the "Content for the king, outside the chain for the Emperor" era, many webmasters are doing outside the chain as a very important task. At the beginning, may be because of the chain included and ranked increase or decrease or joy or worry. Can be a long time, it is inevitable that there will be sleepy, watching their daily do a lot of outside the chain but no
http://blog.csdn.net/whuslei/article/details/6667471 (three-time handshake and four-time handshake)1. TCP's three-time handshake is primarily to prevent expired connections from being transmitted to the connected host again.If you do this twice, the following situation will occur.For example, a confidential connected to the B machine, the result of the connection
Tags: network socket three-way handshake Three-way handshake:TCP creation requires three handshakes,First, the client sends a connection request packet. The server segment receives the connection and replies to the ACK packet, and allocates resources for the connection. After the client receives the ACK packet, it also generates an ACK packet to the server segment and allocates resources so that the TCP connection is established. four waves:
connection) status.
The above connection creation process is called three-way handshake.
Why does a send a confirmation?
The main purpose is to prevent the failure of the connection request packet segment from being suddenly transmitted to B, thus generating errors.
Ii. TCP connection release
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