This chapter is from the book
Installing a Downloaded Script
After you've downloaded a script, you should install it on your local server. Usually, you'll have to make some changes to the script to get it to work in your environment. If it's written in a compiled language, like C, you'll also have to compile the script locally before you can use it. Better written scripts allow you to get them up and running simply by changing a few specific variables, and they provide documentation that explains exactly what needs to be changed in order to get the scripts working.