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Adding a Server: Running Multiple Servers
60 Netscape Enterprise Server Administrator’s Guide
Adding a Server: Running Multiple Servers
There are three ways you can have multiple web servers running on your
system:
• Use hardware virtual servers
• Use software virtual servers
• Install multiple instances of the server
Hardware Virtual Servers
Hardware virtual servers allow you to map multiple IP addresses to multiple
document roots. For example, if you have two IP addresses, you could map the
first IP address to one document root and the second IP address to a second
document root. While hardware virtual servers take fewer system resources
than multiple instances of the server, they must share the same configuration
information. For example, if one hardware virtual server has enabled security
features or web publishing, they all must have it enabled. For more information
on hardware virtual servers, see “Setting Up Hardware Virtual Servers,” on
page 318 in Chapter 13, “Managing Server Content.”
Software Virtual Servers
Software virtual servers give you the ability to map a single IP address to
multiple server names. Each software virtual server can have its own home
page. One use for this is to host multiple web sites from one IP address.
However, in order for software virtual servers to work correctly, the users
accessing the server must be using client software that supports the HTTP Host
header. Like hardware virtual servers, software virtual servers all must have the
same configuration. For more information on software virtual servers, see
“Setting up Software Virtual Servers,” on page 322 in Chapter 13, “Managing
Server Content.”