how to prevent spoofing

virtual machines to simulate DNS spoofing attacks. The tool used is Ettercap. First, let's look at the Target target, Obviously, the IP address directed to www.baidu.com is correct. Then we use ettercap to perform DNS Spoofing. First, find etter. dns configuration file and edit and add A record, direct www.baidu.com to the local IP address to save and exit, use ettercap to start

Prevention of ARP spoofing attack on the server These days my servers are almost daily ARP spoofing attacks, the Web page was hanged Trojan, really annoying, Shenzhen Longgang telecom room is disgusting, reluctantly, I had to look for some way to prevent ARP attack, currently found that can use the static address method and the use of proprietary software methods

uses the MAC address specified by the user. This usually changes the identity of a computer, but it is quite simple. It is usually used to bypass the access control list of servers or routers, or hide a computer or impersonate other network devices. It may be legal and sometimes illegal. To use new hardware or multiple hardware on an ISP bound to a MAC. However, attackers can also use this technology. To meet some software requirements for binding MAC addresses Identity hiding to protect pr

Http://soft.yesky.com/security/hkjj/408/2053408.shtml2005-08-01 16: 31 Author: Zhao Biao Source: Heiji responsibility Editor: wilderness Even if the TCP/IP protocol is well implemented, the TCP/IP network can be attacked due to its own security. These attacks include serial number spoofing, route attacks, Source Address Spoofing, and authorization spoofing. In ad

I encountered a problem today. My colleague asked me how to prevent arp spoofing In The LVS environment. I am not very familiar with LVS. So I went to the whitehat group to ask questions and read the LVS information, make a simple analysis and record it. First, let's take a look at LVS. LVS is short for Linux Virtual Server. its official website is:Http://www.linuxvirtualserver.org/zh/lvs3.htmlAmong them, L

address is reachable to the right path. (statically configured to route ARP entries), note that using a swap hub and a network bridge cannot prevent ARP spoofing. 7, the administrator periodically in response to the IP packet to obtain a RARP request, and then check the authenticity of the ARP response. 8. The administrator periodically polls to check the ARP cache on the host. 9, the use of continuous fir

forgery. The most difficult part of the attack process is serial number estimation. The accuracy is the key to success. Preventive actions Discard address-based trust policies An easy way to prevent such attacks is to discard address-based verification. The use of remote call commands of the r * class is not allowed; The. rhosts file is deleted; the/etc/hosts. equiv file is cleared. This forces all users to use other remote communication method

, first go through the route table of the local machine, then go to the router (GATEWAY), and then to the internet server you want to access. We all know that ARP viruses are spoofed by reading the gateways in the TCP/IP of the local machine. Now, we will "treat our human body with our own path" and anti-spoofing ARP virus. Run ipconfig/All (view local gateway) in the command line (cmd.exe) Shown as follows: The following is a reference clip:Connectio

spoofing, and the implementation mechanism is completely different.　　The above is an ARP spoofing process, which occurs in the same network segment. However, it is important to note that ARP spoofing cannot be prevented by using an exchange hub or bridge. Only route segments are effective measures to prevent ARP

principle is to notify the gateway of a series of incorrect Intranet MAC addresses and keep the gateway learning and updating at a certain frequency, as a result, the actual address information cannot be saved in the ARP list of the gateway. As a result, the gateway will send all the data to the wrong and non-existent address, causing normal clients to fail to receive the information, so the Intranet PC will not be able to access the Internet; the other is