Tutorial on using Access Control List
Access control list provides you the access to the resources found in your system or the webhosting server. Any access control will have two components for successful functioning of the system.
They are a configuration tool that allows you to grants which user have access to which resources and a means to authenticate the users to identify them properly. There are many tutorials available on using Access Control Lists on the internet for different types of Servers, Web Servers, and Operating Systems.
First identify which operating system you are using or which web server or server you are using and then look for the tutorial on access control list for that particular operating system or server. There are three most popular methods for authenticating and controlling access to the users in a web scenario. They are the host based access control, basic authentication, and access through SSL / TLS client certificates.
Tutorial on such topics are also available in the internet. You can use these tutorials to implement access control list.