Logging website visits?

[yasin cinar]

I want to log the visits to my website.My site has a login page as its home page.The ones who passed the authentication can view the website.

I want to log user names,IP addresses and the date of entrances both the successfull and unsuccessfull ones.
I am not allowed to use a ready software package for this,my only choice is to write the code myself.

Any ideas on how,where and what should I write as code in my project?Since I am a beginner programmer I need some guidance.

Thank you.

Yasin

[wizardry]

here is a starting point try using the server variables with this you can log everything from the user. here is a guide http://www.w3schools.com/asp/coll_servervariables.asp