protocol number

Currently there is a scenario where client A to Server B goes to get an HTTP request, in between a firewall, the firewall to monitor the GET request, if the discovery will be truncated.Here are 2 requirements:1, client A If the packet caught, found

When communicating between processes in a network, the process of each communication must know which process it is communicating with on which computer. Otherwise the communication is impossible to talk about! A process can be uniquely identified

PV (page View) access, that is, page visits, each time the page PV count +1, refresh the page is also. IV (Internet Protocol) traffic refers to the number of independent IP accesses, calculated as a separate IP to access the site within a compute

Ngrep is the web version of grep, and he strives for more grep features to search for the specified packets. Because the installation ngrep requires a IBPCAP library, it supports a large number of operating systems and network protocols that

IGMP communicates group membership information between hosts and routers on the local network, and routers periodically multicast IGMP queries to all host groups. Host multicast IGMP reporting messagesIn response to the query.From an architectural

Python provides two basic socket modules.The first one is the Socket, which provides the standard BSD Sockets API.The second is Socketserver, which provides a server-centric class that simplifies the development of Web servers.Here is the socket

1. Audio and video Open source 1.1 FFMPEG http://www.ffmpeg.org/ http://dranger.com/ffmpeg/ ffmpeg Basic http://ffmpeg.tv/ http://www.libav.org/ 1.2 H264/AVC

Introduced A User Datagram protocol is a protocol that defines the communication of a computer to provide packet switching in an interconnected network environment. This protocol defaults to the network Protocol (IP) as its underlying protocol.

This article is just a kernel network protocol practice example, first explain the purpose of adding, the next chapter to start concrete implementation. Kernel version: 2.6.34; In support of 802.1 hosts, the general format of the message: There

Kernel version: 2.6.34 This section focuses on three core data structures-the neighbor table, the neighbor cache, the Proxy neighbor table, and the Nud state transition diagram. In general, to successfully add a neighbor table entry, you need to

Kernel version: 2.6.34 In the previous "IP protocol" in the message received when the IP layer processing analysis, this analysis will be sent to the message when the IP layer processing. When the transport layer is processed,

Concept SSH means that the secure SHELL,SSH protocol family is developed by the network Working Group of the IETF (Internet Engineering Task Force), The content SSH protocol of SSH Protocol is a security protocol based on application layer and

Routers are packet forwarding devices that work in the third layer of the OSI Reference Model-the network layer. Routers implement network interconnection by forwarding packets. Although routers can support a variety of protocols (such as TCP/IP,

1. Foreword The VRRP (Virtual Router redundancy Protocol) protocol is a protocol for implementing router redundancy, the latest protocol is defined in RFC3768, the original definition RFC2338 is abolished, and the new protocol simplifies some

Scenario Overview Today, the Internet application business has been from single to diversified development, from only the news browsing, mail transmission and other single network applications gradually to

Before we learn netty, we need to know what Netty is, Netty is a high-performance, asynchronous event-driven NIO framework that provides support for TCP, UDP, and file transfer, primarily providing asynchronous, event-driven network application

5.1 Common network commands With network-related tools available in the Red Hat Linux 7.1 system, it is essential that these tools be well mastered: Category one: Setting tools 1.netconf: Netconf is part of the linuxconf provided by Red Hat Linux

When it comes to sockets, people who have learned the basics of internet have heard that he is the abstraction of TCP/IP, he is the portal of the Internet world, it is everywhere. Learn the socket programming, means to be able to more deep control

1. Method of establishing TCP connection The client typically takes two steps to establish a TCP connection, and the server process takes four steps, as shown in the comparison below. Steps TCP Client TCP Server

first to understand the next UDP UDP is the abbreviation of Userdatagram protocol, the Chinese name is User Datagram Protocol, is a connectionless transport layer protocol in the Reference Model of OSI (open System interconnection, open Systems