apache

Go to windows host file (C:WindowsSystem32driversetchosts) and add :
Or on linux go to /etc/hosts and add
127.0.0.1 name_of_your_host

Go to the httpd.conf file in appache and add :

NameVirtualHost *:80
<VirtualHost *:80>
  ServerName name_of_your_host
  DocumentRoot "C:wampwwwname_of_your_host"  //or whatever the path to your host is
</VirtualHost>