spoof ip address

In WEB applications, it is also very common to locate and record access logs based on IP addresses. in ThinkPHP, you can easily obtain and locate IP addresses at http://www.thinkphp1.cn/extend/223.html) it also contains the extension class. If the upload class Library is downloaded separately, put the decompressed IpLocation. class. php in the ThinkPHP/Extend/Library/ORG/Net/Directory (if not, manually crea

Simply put: The IP address is the service provider to you, the MAC address is the physical address of your network card.First, IP addressFor IP addresses, I believe everyone is familiar with the 32-bit

MAC address MAC (Media access control or medium access control) address, which is a translation of media access controls, or physical addresses, hardware addresses, to define the location of network devices. In the OSI model, the third layer of the network layer is responsible for the IP address, and the secon

Reference Original address: http://www.cnblogs.com/JuneWang/p/3917697.htmlIP Address:IPv4IP address = network number + host numberSubnet Mask:A subnet mask is a basis for determining whether the IP addresses of any two computers belong to the same subnet . The simplest understanding is that the respective IP addresses

// All. h// 2005/06/20, A.M. wenxy# Ifndef _ all_h# DEFINE _ all_h# Include # Include # Include # Include # Include # Include Socket. H># Include # Include # Include //---------------------// Create the ARP packet header file# Include # Include /* # Include # Include # Include //---------------------# Include # Include # Include Using namespace STD;# Define max_mac_len 24 // Maximum length of the Mac string buffer (byte)# Define compart_mac ":" // delimiter of the Mac string. warnning: modify th

Http://wenda.tianya.cn/question/27f9476d1e86f6b6 I. IP AddressI believe everyone is familiar with the IP address, that is, the 32-bit address assigned to the host using the TCP/IP protocol. An IP

I found a lot online,CodeThere are not many details about the principles. I 'd like to explain a few articles. One TechnologyArticle, The most important thing is to clarify the principle, if there is a complete operationSource codeAlso, the key is to clearly analyze the core part of the code. (1) origin: Most computers use dynamic IP addresses to access the Internet. Intranet IP addresses are alloca

I. Ideas (mainly used in LAN) It is easy to obtain the Client IP address through the Web. It can be parsed from the datagram (Request object) sent by the client to the web server. However, in actual application, the proxy server must be considered, router forwarding and so on. The process of obtaining a MAC address is complex. Because the request object sent from

Tag: Address will refresh physical Add service based on primary DNS updateAs we all know, each piece of network card at the factory burned the world's only MAC address, use this address can be in the network to identify different computers. At the same time, the Internet also uses IP

How To Disable IP address modification and prevent lan ip conflict attacks on LAN computersHow can I prevent LAN computers from modifying IP addresses and preventing LAN IP conflict attacks? The author believes that it can be implemented through the following channels:Method

is with IP conflict resolution This situation is mainly due to other computers under the router is also using your computer's IP address, resulting in IP address conflicts, there is no access to the Internet and so on. The main reasons for this situation are: 1, the local

ThinkPHP uses the UTFWry address library for IP address locating. The extension class can also be included in the official http://www.thinkphp1.cn/extend/223.htmldownload iplocation extension class library, download expansion package (http://www.thinkphp1.cn/down/253.html) also contains the extension class. If the upload class Library is downloaded separately, pu

Questions about MAC addresses and IP addresses that change and are not changed during transmission:Conclusion: MAC address is invariant in the same broadcast domain, it will change when it crosses broadcast domain, while IP address will not change during transmission (except NAT), it is summed up as route forwarding Ma

Php queries the region (pure ip database) based on the ip address ). Pure ip library download? PhpclassIpLocation {*** @ varresource pointer * private $ fp; *** offset address of the first IP record * @ varint * private $ firstip;

First, let's talk. Docker's network mode: When we use Docker run to create a container, we can use the--net option to specify the network mode of the container, with Docker having a total of 4 network modes: 1:bridge mode,--net=bridge (default). This is the default setting for the Dokcer network. After installing Docker, the system automatically adds a bridge Docker0 for Docker to use, and when we create a new container, the container obtains an IP

Article Title: how to bind an IP address to a MAC address on a Linux route. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. In some systems, we want several IP addresses in the intr

, that subnet mask set how much appropriate? Let's set out a formula first.2 m-Time Square =560First, we determine that 2 must be greater than 8 square, because we know that 2 of 8 is 256, that is, the number of Class C IP maximum capacity of the computer, we from 9 times a trial 2 9 is 512, less than 560, 2 10 is 1024, it seems 2 of the most suitable. The subnet mask consists of a total of 32 bits, has determined that the next 10 bits is 0, the front

) Although the ARP request is broadcast, the ARP response is sent directly to the requesting-side host, not broadcast.(2) in general, when the system receives an ARP request or sends an ARP response, the hardware address and IP address of the requesting side are stored in the ARP cache. It is logical to assume that if the request side is sending an

Changes in the source IP address, destination ip address, and MAC address of a data packet during route forwarding. Does the source ip address, destination

The pure version of IP data files can be used to optimize the query method, improve the format conversion efficiency, reduce the number of file reads, and quickly query IP addresses online. Greatly reduce the number of file reads, which should be beneficial to protecting the server's hard disk. Add a database browser to view the qq ip data files of the pure versi