network packet sniffer windows

=Obj.stdout.read () -stderr =Obj.stderr.read () in#3, return the result of the command to the client -Print (len (stdout) +Len (stderr)) toConn.send (stdout+stderr) + - except Connectionreseterror: # for Windows operating systems the Break * $ conn.close ()Panax Notoginseng -Phone.close ()Client code:1 ImportSocket2 3 4Phone =Socket.socket (socket.af_inet, socket. SOCK_STREAM)5 6Phone.connect (('127.0.0.1', 9081))7 8 whileTrue:9

ICMP (Internet Control Packet Protocol) To forward IP data packets more effectively and improve the chances of successful delivery, the network layer uses the Internet Control Packet protocol ICMP. ICMP acts as the IP datagram data and adds the header of the datagram to form the IP datagram forwarding. ICMP allows the host or router to report errors and reports

of processes because grep itself is a process. Four: View network status To print information such as network connection status, ports that are open to the system, routing tables, and so on. Common commands: NETSTAT-LNP print which ports the current system launches Netstat-an Print network connection status Tips: Netstat-an |awk '/^tcp/{++sta[$NF]} END

According to the WOL protocol, when the computer is turned off and the NIC is powered, the WOL Magic Packet received from the network will be automatically powered on. This approach can be easily used in environments where remote administration is required. This program realizes the network wake-up Magic packet sending

This article describes the data PACKET socket, which is one of the two available Windows Sockets types. (Another type is stream socket .) The data PACKET socket supports two-way data streams, which cannot be delivered sequentially or repeatedly. Data reports are not guaranteed to be reliable either; they may not reach the destination. Data packets may not arrive

Currently, we have completed a network packet capture tool, which is implemented in Python. The preferred library or interface for packet capture on Windows is Winpcap. Naturally, Winpcap programs close to the underlying system and hardware are generally written in C language, and the development interface provided by

1. TCP/IP layered model Of course, here we will only discuss the important layer-4 01. Application Layer (Application Layer): the Application layer is a broad concept. It has some similar system-level TCP/IP applications and Application protocols, as well as many enterprise applications and Internet applications. The http protocol runs at the application layer. 02. Transport Layer (Tanspot): the transport layer includes UDP and TCP. UDP does not check packets, while TCP provides transmission gua

1.1.1, the Spectacle:Application Layer Grab Bag1.2. Concerns:Will not miss the bag (lost bag), feel that there is always no drive layer so rest assured ... (I hope Linux does not apply the layer grab package like Windows will be lost ...)2.Linux Network programming: The magic of the original sockets "on"Http://blog.chinaunix.net/uid-23069658-id-3280895.htmlLinux Network