如何在laravel 4.2中将http：// localhost：8000 /更改为其他域名

I have recently started working on Laravel 4.2 (with Ubuntu OS). Can some one help me on how can I replace/alias http://localhost:8000/ with something like dev.laravel.com. Thanks in advance!

/etc/hosts

127.0.0.1   localhost
127.0.0.1   dev.training.com
127.0.0.1   dev.lessons.com
127.0.0.1   dev.pingpong.com
127.0.0.1   dev.wireframe.com
127.0.0.1   dev.laravel.com
127.0.0.1   dev.newapp.com
127.0.1.1   srturaka-pc

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

Virtual Hosts Settings

<VirtualHost dev.laravel.com:8000>
  ServerName dev.laravel.com
  ServerAlias www.dev.laravel.com
  DocumentRoot /var/www/html/dev.laravel.com
</VirtualHost>

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