How requests map to virtual host aliases
When you request a resource, WAS tries to map the request to an alias of a defined virtual host.
Mappings are case insensitive, but the match must be alphabetically exact. Also, different port numbers are treated as different aliases.
For example, the request...
http://www.myhost.com/myservlet...maps successfully to...
http://WWW.MYHOST.COM/MYSERVLET...and to...
http://Www.Myhost.Com/MyservletBut it does not map successfully to...
http://myhost/myservletor to...
http://myhost:9876/myservletOne can use wildcard entries for aliases by port and specify that all valid hostname and address combinations on a particular port map to a particular virtual host.
If you request a resource using an alias that cannot be mapped to an alias of a defined virtual host, you receive a 404 error in the browser used to issue the request. A message states that the virtual host could not be found.
Configure virtual hosts