On completing this chapter, you will be able to
Explain how to harden your file system
Describe how to restrict access on a web server
List the steps necessary to log on to a web server
Describe the four types of security zones
Explain the use of cookies
Is web security a worrisome topic? You bet it is. The many things to worry about include security risks to the operating systems, risks to the web servers, and even blunders by innocent users of web browsers. There are also access problems: who is authorized to access what, when can resources be accessed, and what should access privileges include. Webmasters can restrict access by using certificates, addresses, and credentials or by using a mechanism called Discretionary Access Control (DAC).