tcp proactive

the Ethernet receive this frame and check the target address. If the target address and network adapter address are the same, the adapter software processes the received frame and transmits the data to the higher layer in the protocol stack. Chapter 2 Internet Layer Addressing and sending-- In a selected route network, the TCP/IP software uses the following policy to send data on the network: 1. If the destination address and source address are in

I have written this article about the management of SCO TCP/IP. I hope it will be helpful to you, just like what was written at the beginning of this topic, this is the basis for hackers, and we still need to discuss it in the direction of network management! Haha!1 TCP/IP startupTCP/IP is controlled by the/etc/TCP script file. It is started when you enter the mu

IP: Internet Protocol Unreliable: IP datagram cannot be successfully delivered to the destination, and only the best transmission service is provided. No connection: the IP address does not maintain any status information about subsequent datagram. The processing of each datagram is independent of each other. IP Header The header length of a common IP address is 20 bytes, unless it contains an option field. Included fields: 4-bit version, 4-bit header length, 8-bit service type, 16-bit total l

TCP-the transmission control protocol provides connection-oriented and reliable byte stream services. Before the customer and the server exchange data with each other, a TCP connection must be established between the two parties before data can be transmitted. TCP provides timeout resend, discard duplicate data, test data, traffic control, and other functions to

Network Programming in Pythonfirst, socket () ModuleSecond, create a TCP serverThird, create a TCP clientFirst,socket moduleSocket:Sockets are originally created for applications on the same host, allowing a program (aka one process) running on the host to communicate with another running program. This is called interprocess communication (Inter processcommunication, IPC). There are two types of sockets: fi

TCP is a connection-oriented protocol. Therefore, a connection must be established before both parties send data. This is totally different from the preceding protocol. All the Protocols mentioned above only send data. Most of them do not care whether the sent data is sent or not, especially UDP. From a programming perspective, UDP programming is also much simpler-udp does not need to consider data sharding. In this document, telnet login and exit are

The process of 3 handshake when the TCP protocol connection is established. This paper briefly describes the 3-time handshake process of TCP protocol connection establishment.According to the TCP header, the following 3 packages are in the order of the connection establishment process.0020 (AA) 3e DD A3 A0 12 ... P.. fi>.3.7 ...0030 A0 C4 C0, B4, Gene

OverviewSummarize the 3 handshake process in TCP and the introduction of SYN flood caused by its native flaw1, TCP connection establishment--three times handshakeSeveral concepts: SEQ: Ordinal, 4 bytes, range [0,4284967296], because TCP is byte stream oriented, inTransfer byte stream in a 1 TCP connection each

When the Protocol field of the received datagram indicates that this is a TCP segment, IPINTR (Pr_input function in the Protocol Protocol Conversion table) calls Tcp_inputFor processing, Tcp_inut is performed at the software interrupt level.The function is very long and we will have two discussions, listing the processing framework in Tcp_input. This chapter will end the processing of the RST message segment, and the next chapter beginsDescribes the p

http://blog.csdn.net/chexlong/article/details/6123087The TCP protocol is a connection-oriented protocol that provides reliable data transfer between different host processes. The TCP protocol assumes that the lower layer protocol (such as IP protocol) used by the network stack is unreliable, and its own mechanism guarantees the reliability of the data transmission. In the current network stack protocol fami

For each TCP connection, TCP manages four different timers: Retransmission timer is used when you want to receive confirmation from the other end. If no confirmation is received when the timer overflows, the TCP connection retransmits the data; Insist that the timer is the window size information to keep flowing, even if the other end closes its receiv

TCP is a connection-oriented protocol. Therefore, a connection must be established before both parties send data. This is totally different from the preceding protocol. All the Protocols mentioned above only send data. Most of them do not care whether the sent data is sent or not, especially UDP. From a programming perspective, UDP programming is also much simpler-UDP does not need to consider data sharding.In the book, telnet login and exit are used

There are many network protocols based on TCP protocol, such as TELNET,SSH, FTP, HTTP and so on. These protocols also v Ginkin ZGTERRF can be broadly divided into two broad categories based on data throughput: (1) interactive data types, such as TELNET,SSH, which in most cases are only small-traffic data exchanges, such as pressing the keyboard, echoing some text, and so on. (2) data block types, such as FTP, this type of protocol requires

Tcp-ip detailed volume 3:TCP transaction protocol, HTTP, NNTP, and UNIX domain protocol "PDF" Download Link:https://u253469.pipipan.com/fs/253469-230062539Content IntroductionThe TCP. IP Detail (Volume 3): CP Transaction Protocol. The HP.P and UIX domain protocols are the continuation of the TCP/IP detailed series. The

1th Chapter the concept of TCP/IP TCP/IP refers to the set of network protocols used for the Internet and many other networks. TCP/IP Features: Ø logical addressing-the physical address (MAC address) is a unique and permanent address for each network adapter, totalling 48bit. In TCP/IP, a logical address is called an

I. TCP/IP background and introductionIn the 70 's, with the development of computer technology, computers users realized that it was necessary to connect computers from all over the world to play a more important role in computer. But the simple connection is not enough, because the computer can not communicate. Therefore, the design of a common "language" to communicate is necessary to be less, then the TCP