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Network B's forwarding of packets to network A. Therefore, only if the IP address of the gateway is set up, TCP/IP protocol can realize the communication between different networks. So what is the IP address of the machine? The IP address of the gateway is the IP address of the device with the routing function, and th
their communication methods, as well as the role of Netfilter in this figure.Go back to the five key points "ABCDE" discussed earlier on the protocol stack. Netfilter re-names these five points in netfilter_00004.h, as shown in, meaning I will not explain it anymore. The cat is called Mimi:At each key point, there are many callback functions that have been pre-registered by priority (What are these functio
reduced. 2. What is the difference between router forwarding data and vswitches? In contrast, a router operates at the network layer in the OSI Layer-7 network model. It receives any packet (including a broadcast packet) in the network ), the second layer (data link layer) information of the data
. Traditional TCP IP Protocol network failure We have a general understanding, but another approach-structured approach is not very clear to many people. Below, we will look at its troubleshooting methods. Generally, themethod of structured diagnosis of TCP IP protocol network faults consists of three key parts: First, diagnose the fault measure (1) Verify the connectivity of routing options on the client and server side. To use Ping,pathping,tr
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
router can filter the layer-2 broadcast because the router is a layer-3 device. If the router does not filter such packets, the layer-2 broadcast packet initiated by anyone will reach the entire Internet range. What else do the router need to do? The router is used to divide the broadcast domain. For layer-3 broadcast
it will be sent.The following methods have been created:Write an encryption method and encrypt it with a timestamp, a random number, and a predefined token (or code). The link to the QR code also carries a random number with a timestamp, and a token, after scanning the QR code, verify the validity of the parameter encryption and the stored encrypted string. This may prevent the url owner from receiving the red packet. Do you have any good ideas? 1
Martian Source/martian PacketsIn Linux, by default, packets is considered individually for routing purposes. Thus, all the routing algorithm determines where to send a packet based on this packet itself, without taking into conside Ration that the packet is a response
. It is designed to replace the current HTTP 1.1 protocol. It is said that the performance of SPDY protocol is 1 times faster than HTTP 1.1. SPDY retains the semantics of HTTP 1.1, but the transmission method is different from HTTP 1.1. That is to say, existing Web applicati
packet they are Contained in ). Now depending on the decoder, this can be a problem or not (although the mpeg file is not MPEG compliant as there shoshould be no underflows !). Some decoders (most notably PC based Players) read the file as fast as needed to display the video, ignoring the SCR as needed. Note that in the listing you provide, the average video bitrate is
the handshake, the browser initiates an HTTP request (see packet), uses the method GET method of HTTP, the URL of the request is/, the protocol is http/1.0The following is the detailed contents of package number 12th:The above message is an HTTP request message.So
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--the server responds to the HTTP request, the br
What is the meaning of Intel's launch of the DPDK development Kit? http://www.zhihu.com/question/27413080?sort=createdIntel DPDK-based packet processor, compared to the core network protocol stack based packet processor, where is the advantage and value?Based on the DPDK
What is the process of a complete HTTP transaction? statement: The statement in this article is only a summary of personal understanding, not necessarily completely correct, but can help to understand. For the HTTP protocol, refer to the following: HTTP protocol ramble on Http://kb.cnblogs.com/page/140611/HTTP Protocol Overview http://www.cnb
With the continuous maturation of communication technology and the increasing demand of users for communication quality, the existing GSM network will inevitably evolve to W-CDMA (wideband Code Division Multiple Access), which is estimated to take about 2-3 years, and the main wireless network equipment suppliers will be the earliest It will be 2002 years before a commercially available W-CDMA system can be provided. But this does not mean that mobile
, 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 second-tier switch and the third-tier switch are end-to-end Exchange processes based on port addresses, although this kind of switch technology based on MAC address and IP address can greatly improve the data transmission rate between the nodes, it cannot determine or dynamically restrict the exchange process and data flow of the port according to the application demand of the port host. , that is, the lack of the fourth layer of intelligent appli
Translator Press: OReilly recently a booklet "What is Node?", a brief explanation of Node's life and the application of the scene, the author easy and smooth, full content, is very rare learning materials. Translate it out and share it with us ~ Full text: http://jayli.github.com/whatisnode/index.htmlAuthor: Brett McLaughlin, Original:
The first table shows that for all microsoftreg; SQL server #8482; 2000 versions are the sameMaximum capacity. The second and third tables describe different versions of SQL Server 2000 and the operating systemCapacity. The following table describes what is defined in the Microsoft SQL Server database, or in the Transact-SQL statementThe maximum value (number or size) of the various objects referenced in th
（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 hand
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