Because of the previous mention of the "qa-qd-61-151" host name problem, so the Java to get the host name of things to learn, and in the way of the Java get MAC address/IP address and so on methods.
According to the two articles in resources, the following is integrated to enable Java to obtain the MAC
1. Obtain the lan ip address through the host name; try {iphostentry = DNS. gethostentry (txthost. text); // pass the computer name if (iphostentry. aliases. length> 0) {foreach (string alias in iphostentry. aliases) txtip. TEXT = alias;} // obtain the IP address foreach (IPaddress ADDR in iphostentry. addresslist) txtipaddress. TEXT = ADDR. tostring (); // get the IP a
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 intranet to connect to the Internet, and these IP
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 IP address, source MAC
Simply put: The IP address is the service provider to you, the MAC address is the physical address of your network card. IP address for IP address, I believe everyone is very familiar with, that is, the use of TCPThe 32-bit
In some systems, we want several IP addresses in the Intranet to connect to the Internet, and these IP addresses are not stolen by illegal users. You can achieve this through the following solutions:
First, use ipchains or iptables to set that only valid IP addresses can be connected.
Create an IP/Mac binding for a valid IP address. To discuss this problem, we need to first understand the working principle
How to modify the IP address and the MAC address of the RegistryI. How to change the IP address
C:/> ipconfig (use the ipconfig command to check the IP address before the change)
Windows 2000 IP configuration
Ethernet Adapter local connection:
Connection-specific DNS suffix
This article is based on a test environment. Due to the limitations of the test environment, it cannot be realistic.
The complexity of the situation. To be closer to the actual situation, I tried to make the manual settings as complex as possible. Hope more friends
You can use this method for testing and application, and finally come up with a real solution.
Many of my friends have encountered this problem and have worked hard to crack
Obtain IP and MAC addresses using DNS and WMI specificationsIn C # programming, it is easy to obtain the Host Name and Host IP address. It provides a DNS class that allows you to easily obtain the Host Name and IP address.Example:String strhostname = DNS. gethostname (); // obtain the Host Name of the local machine.Iphostentry ipentry = DNS. gethostbyname (strhostname); // obtain the local IP address.String
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
1 Basic ConceptsAn IP address is an Internet protocol address, each Internet package must have an IP address, and each Internet service provider (ISP) must request a set of IP addresses from the organization concerned, and then generally dynamically assign it to its users.The MAC a
Each Ethernet device has a unique MAC address at the factory, why do I need to assign an IP address to each host? or if each host is assigned a unique IP address, why should a unique MAC address be embedded in the production of a
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
The world has a spear has a shield, since there are ip-mac binding technology, there will always be someone to try to break through this binding. In general, there are only two ways to "modify the IP Address" and "Modify the MAC address".1. The modification of the IP address
# Include "stdafx. H"
# Include // This header file defines the socket programming function# Include // This header file declares the input/output stream function.# Include # Include # Include # Include # Pragma comment (Lib, "ws2_32.lib") // connect to the ws2_32.lib library. ws2_32.lib is used as long as the Winsock API function is used in the program.# Pragma comment (Lib, "netapi32.lib") // connect to the netapi32.lib library. netapi32.dll is used in MAC
My development environment is VS2008, and the mobile terminal version of the developed system is windows mobile 5.0. Because identity authentication is required and the MAC address of the mobile terminal needs to be obtained, you can search the Internet to obtain the MAC address in three ways. The record is as follows.
Get Server Mac
Copy CodeThe code is as follows:
/**
Obtain the MAC address source of the network card; currently supports Win/linux system
Get the physical (MAC) address of the machine card
**/
Class getmacaddr{
var $result = array (); Returns an array of strings with
Brief introductionBefore a manufacturer can manufacture a network card, it must register with the IEEE to obtain a vendor code length of 24bit, also known as OUI (Organizationally-unique Identifier). In the process of manufacturing the network card, the manufacturer will burn a 48bit bia (burned-in address, Cure addresses) address to each of the NIC's ROM, the first 3 bytes of the BIA
How to obtain the client's IP address or MAC address and obtain a piece of code to obtain the client's IP address or MAC address to determine the number of visits to this address. More
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