<VirtualHost>...</VirtualHost>

[server config]

Used when the Apache server services multiple hostnames. Each hostname is given its own <VirtualHost> directive.

<VirtualHost> has a beginning and ending directive, with other configuration directives for the virtual host entered in between. Most directives are valid within <VirtualHost> except the following: BindAddress, GroupId, MaxRequestsPerChild, MaxSpareServers, MinSpareServers, Listen, NameVirtualHost, PidFile, ServerType, ServerRoot, StartServers, TypesConfig, and UserId. This is essentially a segmenting directive that applies directives solely to the virtual host specified. For example:

<VirtualHost sales.oreilly.com>
ServerAdmin webmaster@oreilly.com
DocumentRoot /ora/sales/www
ServerName sales.oreilly.com
ErrorLog /ora/sales/logs/error_log
TransferLog /ora/sales/logs/access_log
</VirtualHost>