Searching for an user management article

[eluser]sudesh[/eluser]
Hi,

I dont know whether i m posting this topic on right forum category, sorry if i m not doing so.

I m searching for an article i read about how one should code a user management system, from which i believe CL_AUTH and dx_auth both are inspired i remember few things from it but not exact.

It would be great if someone know a link to that article.

thx