I'm new to DNN.

Using DNN 7.2, need to build a content site for customer.
The customer will update the site with it's new proffesional articales from time to time.
Need to implement free search and also search by some subject value list.
Need to allow arange articles by categories.
In the home page the newest articles title and short content description.

Please advise the appropriate method, modules etc...

Thanks alot,