http://www.perlmonks.org?node_id=2350

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

What would be an efficient and easy way to check and log a user's IP adress and make sure that someone would not be able to vote more then once in a polling script? I am not exactly sure how to do this. Is there another script which I could view this process or a web site that makes reference or is it an easy code to write on this board?