Page 284 - StudyBook.pdf

268 Chapter 5 • Communication Security: Web Based Services

5. Another way to check for a Web server is to go to the Control
Panel and open the Add/Remove Programs applet. If you navi-
gate to Add/Remove Windows Components, you can check to see
if you have IIS checked off, which would also indicate that the
Web server software is installed. In Figure 5.6, you can see that
IIS is checked so that it is installed. To completely remove the
Web server, make sure it is not checked at all; this means it will
not be installed (or will be uninstalled if it has already been
installed).

Figure 5.6 Viewing IIS on a Windows XP Professional Workstation

Stopping Browser Exploits

As we’ve already seen in this chapter,Web browsers are client software programs
such as Microsoft Internet Explorer (IE), Netscape, Opera, Mozilla Firefox, Safari,
and others.These clients connect to servers running Web server software such as IIS
or Apache and request Web pages via a URL, which is a “friendly” address that rep-
resents an IP address and particular files on the server at that address. It is also pos-
sible to connect to a Web site by typing the Web server’s IP address itself into the
browser’s address box.The browser receives files that are encoded (usually in
HTML) and must interpret the code or “markup” that determines how the page

www.syngress.com