Virtual Host debug 必备

If you are trying to debug your virtual host configuration, you    may find the Apache -S command line switch    useful. That is, type the following command:
   
/server/httpd-2.2.22/bin/httpd -S   



    This command will dump out a description of how Apache parsed    the configuration file. Careful examination of the IP addresses and    server names may help uncover configuration mistakes. (See    the docs for the httpd program for    other command line options)