tcp ip guide

/proc/sys/net DirectoryAll TCP/IP parameters are located in the/proc/sys/net directory (note that modifications to the contents of the/proc/sys/net directory are temporary and any modifications are lost after the system restarts), such as the following important parameters: parameters (Path + files) Describe Default value Optimized values /proc/sys/net/core/rmem_de

TCP/IP Study Notes (6)-UDP Protocol 1. Brief Introduction to UDP UDP is a transport layer protocol, which is in a layer with TCP protocol. However, unlike TCP, UDP does not provide timeout retransmission, error retransmission, and other functions, that is, it is an unreliable protocol.2. UDP header 2.1.udp port number

Compare the ping commands of tnsping and TCP/IP of Orale: -----------------------------------------------------------------------------Oracle Net tool (command) tnsping is an OSI Session Layer tool used: 1) Verify the name resolution (name resolution, of course, the name of the Oracle Network Service) 2) whether the remote listener is enabled In terms of verifying the above two features, it is a handy tool

TCP/IP makes the world a global village The TCP Connection established by the TCPIP protocol is terminated on the earth. Humans are very small and distributed in every corner of the world. With the development of science and technology, people can now easily communicate with their loved ones and friends thousands of miles away in real time to get and share what

The layer-7 network consists of the physical layer, data link layer, network layer, transmission layer, Session Layer, presentation layer, and application layer.The physical layer, data link layer, and network layer are usually called media layers, which are the objects of network engineers;The transport layer, Session Layer, presentation layer, and application layer are called the host layer, which are user-oriented and concerned content. The HTTP protocol corresponds to the application layer.

The network is divided from bottom to top : correspondingPhysical Layer--Data Link layer--Network Layer--IP protocolTransport Layer--TCP protocolSession Layer--presentation layer and Application Layer-HTTP protocolThe socket is the encapsulation and application of the TCP/IP protocol (at the programmer level). It can a

1. TCP connectionTCP (transmission Control Protocol) transmission protocol. TCP is the host-to-host layer of the Transmission Control Protocol, providing a reliable connection service, using three-time handshake confirmation to establish a connection. The bit code is the TCP flag bit, there are 6 kinds of marking: SYN (synchronous set up) ACK (acknowledgement ack

Life was not a rehearsal"No rehearsal in life."reference : TCP/IP Primer Classic (fifth edition)TCP/IP Detailed Volume One: protocolFirst, what is TCP/IPTCP/IP is a family of protocols that define network data transfer rules, and

ArticleDirectory Maximum number of TCP connections per single IP Address Maximum number of TCP connections per single IP Address Category: TCP/IP In a TCP applica

, FDDI Data link layer, ATM (asynchronous Transfer mode, asynchronous Transfer Mode), IEEE 802.5 (Token Ring), frame Relay (Frame relay) Network Layer : Responsible for routing data packets between subnets. In addition, the network layer can also realize congestion control, Internet interconnection and other functions. Packet, pack. Typical protocol representative: IP, ICMP, IGMP, IPX, BGP, OSPF, RIP, IGRP, EIGRP, ARP, RARP, x. Transport Layer (Tr

TCP/IP and HTTP are not understood. After reading this article, the network knowledge is all understood Preface Before writing, first give this article a clear positioning, after reading this article, I hope you can: For the computer network has a preliminary understanding and understanding of some classic terminology, such as three times handshake, four waves, the meaning of DNS resolution. Learn about a

Directory1. C # Socket Communication2. HTTP parsing engine3. Resource reads and returns4. Server Testing and code downloadA Web server is the host of a Web resource that handles requests from a client browser and specifies that the corresponding Web resource be returned to the user, including not only HTML files, JS scripts, JPG images, but also dynamic content generated by the software. To meet the above requirements, a complete Web server workflow:1) The server obtains the HTTP request packets

Doc1:/proc/sys/net DirectoryAll TCP/IP parameters are located in the/proc/sys/net directory (note that modifications to the contents of the/proc/sys/net directory are temporary and any modifications are lost after the system restarts), such as the following important parameters: parameters (Path + files) Describe Default value Optimized values

A remembrance of the past, full of remorse tears.? ? ? Learned in school, the network seven layer, also know the TCP three handshake. But because it is useless in the actual development, so gradually forgotten. Now understand the next three differences and connections. Two business? ? ? Network layer Seven: The number of Objects webcast table should be. The physical layer, the data link layer, the network layer, the Transport layer, the session layer,

The structure and operation principle of TCP/IP Protocol Background: www.2cto.com TCP/IP model is successful, and its design has been able to withstand years of training. However, the TCP/IP protocol family is a complicated model.

Repost TCP/IP protocol simple analysis First, TCP/IP and IP are two different protocols. They are divided into different layers in the layer-7 network model. IP is the network layer protocol, and

Difference between TCP/IP and UDP (reprinted), tcpudp Before analyzing the differences between the two, we should first understand the relationship between the two, The TCP/IP protocol cluster is a network control protocol. Simply put, it is a network protocol. Computers in our network use this protocol cluster for dat

Introduction to TCP/IP network protocols Some time ago I made a development, involving network programming, and the development process was quite smooth, but I always felt a bit confused after the task was completed. The main reason is that you are not familiar with network protocols and are not clear about some concepts. Later, I spent some time learning about these network protocols. Now I have a prelimi

Socket (socket)(turn) What is a socket (socket)?When the application layer communicates data through the transport layer, TCP and UDP encounter problems that simultaneously provide concurrent services for multiple application processes . Multiple TCP connections or multiple application processes may require data to be transmitted over the same TCP protocol port.

Approaching TCP/IP protocol 1. What is TCP/IP? TCP/IP Protocol (Transmission Control Protocol/Internet Protocol, Transmission Control Protocol/InternetIs the most basic Internet protocol. Before the formation of the Internet, many