python network sniffer

image results The spider is simple enough to use the Python third-party library requests and BEAUTIFULSOUP4, the code is concise enough, suitable for learning. The core code is as follows: Kongjiespider crawled pictures are saved in a local folder: Kongjie Results The flight attendant crawlers are stacked on my github: https://github.com/ychenracing/Spiders/tree/ Master/kongjiexxx crawler did not say, go to GitHub to see. Have a surprise. The final s

Based on the understanding of the basic syntax of Python, it is possible to freely assemble a variety of advanced functions that you need.Because of the characteristics of Python language, the implementation of various functions will be very fast.The network becomes one of the advanced features that Python has. Need to

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 step Create a socket object Create a socket object Second Step Call Connect () to establish a connection with the server To set the socket option (optional) Third Step No Bind to a port (or it can

Python scapy network sniffing1. Introduction Scapy is a powerful third-party library for network sniffing. In terms of network sniffing, the previous blog post introduced the use of Raw Socket for network sniffing. However, Raw Socket is relatively low-layer and may not be e

#!/usr/bin/env PythonImport timeImport SysIf Len (SYS.ARGV) > 1:INTERFACE = sys.argv[1]ElseINTERFACE = ' eth0 'STATS = []print ' Interface: ', InterfaceDef RX ():Ifstat = open ('/proc/net/dev '). ReadLines ()For interface in Ifstat:If INTERFACE in INTERFACE:Stat = float (Interface.split () [1])Stats[0:] = [stat]DEF TX ():Ifstat = open ('/proc/net/dev '). ReadLines ()For interface in Ifstat:If INTERFACE in INTERFACE:Stat = float (Interface.split () [9])Stats[1:] = [stat]print ' in Out 'Rx ()TX ()

I. WedgeNow that you've learned to write Python code, if you've written two Python files a.py and b.py and run them separately, you'll find that the two Python files work well. But what do you do if you want to pass a data between the two programs?This problem can be solved with your knowledge now, we can create a file, write the content that a.py want to pass to

TCP, UDP For example: Import socketS=socket.socket (Socket.af_inet,socket. SOCK_STREAM)Port=socket.getservbyname (' http ', ' TCP ')Port has a return value of 80. If read:Port=socket.getservbyname (' SMTP ', ' TCP ')Port has a return value of 25. 4, from the socket to obtain information After you establish a socket connection, you can obtain its own IP address and port number by getsockname (), or you can display the IP address and port number of the remote machine by Getpeername ().For exa

Python network programming, TCP/IP client and server, 2015 python I have never been very clear about the definition of the server, and I have only a vague feeling about what the server/client architecture is. I recently started to learn about the relationship between some servers and clients. A server is a service provider. It is a hardware or software that can p

#!/usr/bin/env pythonFrom IPy import IPip_s = raw_input (' Please input an IP or net-range: ')ips = IP (ip_s)If Len (IPs) > 1:Print (' Net:%s '% ips.net ())Print (' netmask:%s '% ips.netmask ())Print (' Broadcast:%s '% ips.broadcast ())Print (' Reverse address:%s '% ips.reversenames () [0])Print (' Subnet:%s '% len (IPS))ElsePrint (' Reverse address:%s '% ips.reversenames () [0])Print (' hexadecimal:%s '% Ips.strhex ())Print (' Binary IP:%s '% Ips.strbin ())Print (' Iptype:%s '% Ips.iptype ())1.

Python has a number of well-established libraries, including penetration testing tools, so the vast majority of white hat hackers use the Python language, which is more conducive to the use of Python provided by these libraries to participate in vulnerability research, reverse engineering and infiltration work.This article lists 13

Python remote control of computer restart or shutdown through network mail, python mail Requirement Analysis: Python implements a project that remotely controls the restart or shutdown of a computer through network mail. Procedure: Process Analysis: To implement this functi

Python Image Processing (14): Neural Network Classifier and python Image Processing Happy shrimp Http://blog.csdn.net/lights_joy/ Reprinted, but keep the author information Opencv supports neural network classifier. This article attempts to call it in python. Like the Baye

But what are Python and why are it the language of choice by many DevOps engineers?What is Python? Why are so many devops engineers choosing Python?Here is an explanation from the PSF (the Python software Foundation):Python is aninterpreted,object-oriented,High-levelProgramm

Python project: scallop Network Group Card Checking assistant and python Card Checking Scallop network is a great English learning website. You can join groups to exchange and learn and make progress together. However, it is very hard to manage the group, especially when the member is kicked out before. Therefore, the

Socket is the network connection endpoint. I. Introduction to Network Knowledge Socket is the network connection endpoint. For example, when your Web browser requests the homepage of www.jb51.net, your Web browser creates a socket and commands it to connect to the Web server host of www.jb51.net, the Web server also listens to requests from a socket. Both ends u

SocketSockets are also commonly referred to as "sockets," which describe IP addresses and ports, and are a handle to a chain of communication, where applications usually make requests to the network through "sockets" or respond to network requests.Sockets originate from UNIX, and one of the basic philosophies of unix/linux is "Everything is file", and the file is operated with "open" "Read and Write" "Off"

SocketOperation Result:The UDP protocol does not need to establish a connection in advance to send data directly to each other."UDP" server-side code:ImportSockets= Socket.socket (socket.af_inet, socket. SOCK_DGRAM)#Create a Socket,sock_dgram to represent the UDPS.bind (('127.0.0.1', 10021))#bind IP address and portPrint('Bound UDP on 10021 ...') whileTrue:data, addr= S.recvfrom (1024)#get the address and port of the data and client, and receive the maximum 1024 bytes at a time Print('Receiv

Python development [Article 8]: socket network programming, python Article 8 Server: Client: Server output: Client output: Continuous sending information: Server: Client: Run commands on the linux Client Server: Client: File Sending in linux Server: Client: Up to 32768 data records can be sent at a time (different systems) Send multiple times Server: Client: File

Python network programming instance analysis, python programming instance analysis This example describes python network programming and provides it for your reference. The specific method is as follows: The server code is as follows: from SocketServer import(TCPServer as TC

Python crawler practice (1) -------- China crop germplasm Information Network, python -------- The related code has been modified and debugged. ---- Target URL: http://www.cgris.net/query/croplist.php Implementation: crawls related information and stores the crawled data into the mysql database. Result data is stored in Baidu cloud: Link: http://pan.baidu.com