12.3. Web Server Security

An organization’s web server is an attacker’s most common point of entry into the network. A web server is, almost by definition, a public server, so it makes an attractive target to attackers. In addition, depending on the nature of the website, breaking into the web server may give an attacker access to valuable customer information. Because web servers are such attractive targets, special steps need to be taken to secure the web server against attackers.

The web server should be a single-use server, and should have a very restricted access policy; only personnel who absolutely need access should have it. In fact, a staging server is commonly used as a means of further restricting access to the actual web server. ...

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