I´m building a url shortener web application and I would like to know the best architecture to do it in order to provide a fast and reliable service.

I would like to have two separate servicies in different machines.

• The first machine will have the application itself with a apache, nginx, whatever..
• The second one will contain the database.
• The third one will be the one that will be responsible to handle the short url petitions.

For the third machine I just need to accept one kind of http petition (GET www.domain.com/shorturl), but it have to do it really fast and it should be stable enough.

Which server do you recommend me?

Thank's in advance and sorry for my english