On Tue, 9 Dec 2008, Jer wrote: > > So, I'm wondering. Can this be done using IP addresses? Or will DHCP > screw that up? Are there any other unique identifiers that could be > pulled from a user's machine to keep track of it? > > In a nutshell, is there a unique identifier that could be added to a > user's account on a site that could be used to restrict the viewing of > a page or pages of content? > > Jeremy >
iirc, IP address based restriction will not work. The common approaches are: . Cookies (multiple) . MAC address binding (assuming some plugin hooks to that) . hidden tracking window All of this stuff can be circumvented. There is very little control one has on the HTTP client side. Not sure what a good unique identifier can be in this case. Anybody else got some suggestions ? thanks Saifi.
