How does Digg.com do it? How does Stackoverflow do it? How does reddit do it? Wait, you mean they ALL use membership systems?
Stop trying to reinvent the wheel! If you want to ensure that people can only vote once, regardless of whether they change IP or delete cookies, there is only one way to do it. A membership system. On Wed, Feb 24, 2010 at 10:09 AM, Kadir Avcı <[email protected]> wrote: > I know the exact solution is membership but we don't want membership. We > want everyone can access the system. > > Kadir Avcı > Software Developer | Web Developer > web: www.kad1r.com | twitter: www.twitter.com/kad1r | mobile: > +90.555.676.97.93 > > > On Wed, Feb 24, 2010 at 12:03 PM, Jamie Fraser <[email protected]>wrote: > >> The simple solution - use a membership system. It works for 99% of sites >> out there for providing customised content. >> >> >> On Wed, Feb 24, 2010 at 7:39 AM, Kadir Avcı <[email protected]> wrote: >> >>> Hmm. Ok. Thanks for help. >>> Kadir Avcı >>> Software Developer | Web Developer >>> web: www.kad1r.com | twitter: www.twitter.com/kad1r | mobile: >>> +90.555.676.97.93 >>> >>> >>> On Wed, Feb 24, 2010 at 6:11 AM, Keidrick Pettaway >>> <[email protected]>wrote: >>> >>>> I don't think you can do anything if they are using a NATed IP >>>> >>>> Keidrick Pettaway >>>> Web: >>>> http://www.kpettaway.com >>>> Linkedin: >>>> http://www.linkedin.com/pub/keidrick-pettaway/8/705/b58 >>>> ------------------------------ >>>> *From: * Arsalan Tamiz <[email protected]> >>>> *Date: *Wed, 24 Feb 2010 09:07:36 +0500 >>>> *To: *<[email protected]> >>>> *Subject: *Re: [DotNetDevelopment] [Question]Point system in asp.net >>>> >>>> Even there can be multiple users behind a single IP. I think this is NOT >>>> possible to detect the same user without using any previously saved data on >>>> the same PC. >>>> >>>> On Mon, Feb 22, 2010 at 3:07 PM, Kadir Avcı <[email protected]>wrote: >>>> >>>>> I have a website and I want to choose best website in my webpage with >>>>> pointing system. Users give some points to websites. >>>>> I check IP + Cookie but if the user delete cookie or change IP address >>>>> again give some points. How can I prevent this? >>>>> PS: There is no membership. >>>>> >>>>> >>>>> Kadir Avcı >>>>> Software Developer | Web Developer >>>>> web: www.kad1r.com | twitter: www.twitter.com/kad1r | mobile: >>>>> +90.555.676.97.93 >>>>> >>>> >>>> >>> >> >
