protocol sniffer

TCP vs. UDP differencesTCP---Transmission Control Protocol, providing a connection-oriented, reliable byte-stream service. Before the customer and the server Exchange data with each other, a TCP connection must be established between the two parties before the data can be transferred. TCP provides time-out re-send, discard duplicate data, test data, flow control and other functions to ensure that data can be transmitted from one end to the other.UDP--

Preface: Because OBJECT-C does not support multiple inheritance, it is often replaced with protocol (protocol). The Protocol (protocol) can only define a common set of interfaces, but cannot provide a specific implementation method. That is, it only tells you what to do, but specifically how to do it, it does not care.

The routing information protocol (RIP) is one of the earliest and most basic protocols in the routing protocol. Although its current use is gradually unable to meet our network construction needs, we still need to fully master this protocol as a learning basis. Like all protocols, the RIP Protocol is used to distribute

Preface: Because OBJECT-C does not support multiple inheritance, it is often replaced with protocol (protocol). The Protocol (protocol) can only define a common set of interfaces, but cannot provide a specific implementation method. That is, it only tells you what to do, but specifically how to do it, it does not care.

Objective-c Protocol (Protocol), objectivecprotocol The Protocol is a list of methods shared by multiple classes. methods listed in the Protocol are not implemented in this class, but are implemented by other classes. To comply with a protocol, a class must implement all met

Author: vamei Source: http://www.cnblogs.com/vamei welcome reprint, please also keep this statement. Thank you! After a rough understanding of IP address relays and IP addresses, let's look at the specific details and design philosophy of the IP protocol. Comparison between IPv4 and IPv6 Headers We have already introduced in IP address relay that an IP packet is dividedHeader(Header) andData(Payload/data. The header is the additional infor

turn from: Http://www.cellopoint.com/cn/media_resources/blogs/2011/05/Protocol_Buffers Introduction IntroductionThe Protocol buffers is a flexible, efficient, automated mechanism (possibly coding) tool for serializing structural data.Like XML, but smaller, faster, and simpler. You define your structured data, and then you can use the special code generated by the tool to easily use various languages (c + + python java)Read and write your structured da

Problem Description 1:c:\users\administrator>lsnrctl StartLsnrctl for 64-bit windows:version 11.2.0.1.0-production on December-December-20144:50Copyright (c) 1991, Oracle. All rights reserved.Start Tnslsnr: Please wait ...Failed to start service, error 193.TNS-12560:TNS: Protocol Adapter errorTNS-00530: Protocol Adapter Error problem description 2:oracleoradb11g_home1tnslistener Listener service failed to s

, but the shared key is not known, it is difficult to crack the user's password forgery data. The shared key should be the appropriate length, should not be too short, wide password range can effectively provide the defense of the exhaustive search attack, with the increase in the length of the key, its crack time will be greatly increased.4. To prevent the replay attacks by illegal users, the server is paralyzed. If a request has the same customer source IP address, source UDP port number, and

Reprint Original Address: http://aajs800.blog.51cto.com/519255/109555What is Https:https (Secure hypertext Transfer Protocol) Secure Hypertext Transfer Protocol It is a secure communication channel that is based on HTTP development and is used to exchange information between client computers and servers. It uses Secure Sockets Layer (SSL) for information exchange, which simply means that it is a secure vers