packet logger

C language: Code "programming and development" for the red packet snatching program and development for the red packet snatching Program In fact, this is a fairly simple piece of code. As for why I want to put it on my blog, it is mainly for those who are new to programming (or those who are interested in programming ), A relatively intuitive program (mini game) may be more interesting to them, or more ent

Linux packet capture analysis (tcpdump) and linux packet capture tcpdumpStart by default Tcpdump Under normal circumstances, directly starting tcpdump will monitor all the data packets flowing through the first network interface. Monitors data packets of a specified network interface Tcpdump-I eth1 If no Nic is specified, the default tcpdump only monitors the first network interface, which is usually e

in front of the Libpcap capture packet, especially in the gigabit network conditions, a large number of drops, online search for a long time, probably all Pf_packet +mmap,napi,pf_ring and other methods, I pf_ring+libpcap experiment, The detection of gigabit network conditions, capturing the performance of the packet is very good, almost no packet loss, the experi

Above the 7242+8328 board, Wan Kou: Port3,lan: Port2,port4. Its port connection can be found in my previous article.Eth0 The IP address above is dynamically acquired, used as an interface for external WAN Internet access, with no VLAN headers for the packets being communicated.eth0.2: Used as an internal LAN interface. The IP address is fixed and the VLAN header is automatically added or removed when the packet passes through the LAN port.There is no

First, a sample from a Shehiren teacher's book is referenced:Host H1 the process of sending packets to H2:First, with the subnet mask in the subnet:255.255.255.128 and target host H2 IP address:128.30.33.128 and get network number: 128.30.33.128. Obviously this does not match the network number of Subnet 1:128.30.33.0.The datagram is then forwarded by the default route R1 Subnet 1. At this point, R1 will look for its own routing table. Think of the host address and subnet mask of the H2, and whe

Ubuntu displays the NIC packet processing speed and ubuntu PacketView Nic packet processing speed in ubuntu sar -l 1 10 First, install sar. The "-l" parameter in the apt-get install atsarsar command is net-interf (general). The parameter "1" is counted every second, the "10" parameter indicates the total number of times. Q: How can I view the network speed of two NICs in a PC under ubuntu? Install an indic

Libpcap supports a very powerful filtering language-the "Berkeley Packet Filtering" syntax. With BPF filtering rules, you can determine which traffic to get and check, and which traffic to ignore. BPF allows you to filter traffic by comparing the values of each data field in the 2nd, 3, and 4 layers of the protocol. Some "primitives" are built into the BPF to refer to some commonly used protocol fields. You can use primitives such as "host", "prot" to

Group red packet algorithm and group red packet algorithm Today is the last day of the Spring Festival. There is nothing to do. It is just that the students in the group will discuss the algorithm of group red packets. A close-up algorithm is provided. The general idea is to find the red envelope that has been sent and find its random vibration slope. Let's take a look at the algorithm: # Coding = gbkimpo

"% (fs_stat. Path, Fs_stat. Prefix, Fs_stat. Uid, Fs_stat. Gid, Fs_stat. Mode))def checkfile (self):For File_st in Self.fsstats:# print ("Checkfile file_st. Path dddd%s%d "% (file_st. Path,len (self.filelist)))TrySelf.fileList.index (File_st. Path)ExceptPrint ("Checkfile file_st. Path%s "% (File_st. Path))Return FalseReturn Truedef diffpackage (old, new):Assert Isinstance (new, package)Assert Isinstance (old, package)For S in New.filelist:TryIf Old.fileList.index (s) >= 0:# print ("xxxxx%s, inde

computer's wireless, set the HTTP proxy to manual, set the computer's IP address here the port is arbitrary but ensure >1024 (recommended 8080 port)3) Start Paros, choose options in Tools Set the IP address like a phone PC, like a port4)Open the Paros folder, in the Paros folder has a Paros.jar file, click on it and run, will come out PAROS interface, I put PAROS interface function divided into three parts network send request will be displayed in 1, send (response) Request header and reque

The title of the article is a bit around the mouth, like the execution of a command pipe, oh, because the server Setup problem can not upload too large compression package, this compression package can not continue to pass the breakpoint, all can only cut, in Windows under the use of software can be easily done, then in Linux how to solve it, It takes only two commands to handle it easily:Let's see the first command:Cat Jordan_shoes.tar.gz|split-b 100m–jordan_shoes.tar.gz.Explain:The-jordan_shoe

Java socket packet communication (I) socket establishment, socket Packet Java socket packet communication (I) socket Establishment Today, I will share with you how to use socket for communication in java. Let's take a look at TCP/IP and udp: TCPYesTransfer Control ProtocolIs a connection-oriented protocol for reliable transmission. It is transmitted over TCP to o

Use AccessibilityService to achieve automatic snatching of red packets and snatching of Red Packets Recently, the AccessibilityService is used to implement the automatic red packet snatching function. Here we mainly write the logic and attention points. Notes1. Search for keywords To implement a function, such as clicking, we need to find the corresponding object and simulate the click event. So the first step is how to find the object. Three methods

Android supports automatic red packet snatching, and android supports red packet snatching. The service of automatic snatching of red packets is simply implemented. The principle is to find the corresponding View based on the keyword and then click it automatically. The AccessibilityService is mainly used as an auxiliary service, which can basically meet the function of automatic snatching of red packets. H

network connection. Ping does not appear to drop packets. Using the grab Bag tool, the client is inexplicably sending the RST after receiving the SYN from the server. For example, like this: There are 89, 272 host computers. Host 89 sends a SYN to host 27, indicating that you want to connect 8888 ports, host 27 back to host 891 SYN indicates that you can connect. But host 27 is very unfriendly, inexplicably sent a RST that I do not want to connect you. Later after the investigation found that

An HTML5 red packet and an html5 red packet : Please follow the public account's question, account ihewenqi, or scan the QR code:After you pay attention to it, you can try it out by sending a fool's day or a holiday red envelope. The Code is as follows:

Weak Network Simulation of Fiddler packet capture and Simulation of fiddler packet capture 1. Click Rules --> Customze Rules 2. Find m_SumulateModem. The first time is the uplink delay time, and the second time is the downlink delay time, in milliseconds. Set the uplink 2 s delay and downlink 3 s delay. 3. Click Rules-> Performance, select Simulate Modem Speeds, and enable weak network mode. 4. A

PHP public account automatically sends red packet API, php public red packet api This example shares the API code for automatically sending red packets to the PHP public account for your reference. The details are as follows: Paste the core interface code and enter the data yourself. The interface test is OK.Wechat_packet.php Array to xml: arraytoxml. php The above is all the content of this article. I ho

Troubleshoot malicious packet sending and packet sending on the server On the 30th, I found that the traffic of one server in another service line of my data center was extremely high (the outbound traffic of a single server exceeds 900 MB), and the access to the server was particularly slow due to the impact of traffic on service access. We suspect that this linux server should be infected with Trojans, so

息 # [Expert Info (chat/sequence): http/1.1-ok\r\n] #专家信息 # Request version:http/1.1 #请求版本 # Status code:200 #状态码 # Response phrase:ok #响应短语 # Date:tue, 2017 07 : 34:36 gmt\r\n #响应时间 # server:apache/2.4.6 (CentOS) php/5.4.16\r\n #服务器信息 # Last-modified:tue, June 2014 16:00:47 gmt\r\n #上一次修改 # ETag: "4b8d-4fc0a3f32a9c0" \ r \ n #上一次修改标识 # accept-ranges:bytes\r\n #接收范围 # Content-length: 19341\r\n #内容长度 # Keep-alive:timeout=5, max=99\r\n #保持响应时间, and maximum value # connection:keep-alive\