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Dynamic IP Locking: A Poor Mans Multi-factor Authentication
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Dynamic IP Locking: A Poor Mans Multi-factor Authentication
http://www.ny-dev.com/forums/f184/dynamic-ip-locking-poor-mans-multi-factor-authentication-1263/
In the security world there has always been the practice to deny hosts unless they were of a certain IP. However, the problem is that now days on the internet hosts need to access systems and their ips are not fixed. The idea is to put into place a logon system that adds a level of security but by no means is a cure-all. IPs can still be forged just like we use MAC to deny hosts even though they can be spoofed. Your login protocol still checks for a user id and a password while looking if the ip that they signed up with matches the one signing on. So a normal fixed IP person would use their IP. However, a dynamic ip user would enter Whatever.dyndns.com or whaetver.com. The server then would look up the ip of this sub domain and see if it matches the host. The host would be running with in the background a client (https://www.dyndns.com/support/clients/) that
sends their dynamic ip to the trusted third party DNS providers like no-ip.com and etc. Also with the release of Windows Vista all users will be able to be given a ipv6 address with its own sub domain to use from Microsoft called the "Windows Internet Computer Name"-- a unique domain name. This can be treated as a trusted third party. The attackers thus could still forge the address; however he would have to know the sub domain to look up to spoof to the server. PHP > Scripts and Programs > Networking Tools > Other Jan 4, 2007 Taz send email to Taz
sends their dynamic ip to the trusted third party DNS providers like no-ip.com and etc. Also with the release of Windows Vista all users will be able to be given a ipv6 address with its own sub domain to use from Microsoft called the "Windows Internet Computer Name"-- a unique domain name. This can be treated as a trusted third party. The attackers thus could still forge the address; however he would have to know the sub domain to look up to spoof to the server. PHP > Scripts and Programs > Networking Tools > Other Jan 4, 2007 Taz send email to Taz
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