How to run a server locally in a rails environment to run two applications on different ports?

Question

Ruby on Rails

Installed two development environments for Ruby-on-Rails applications on the local computer.

• The first environment is taken here: Railsinstaller.org - everything needs to be done in it with pens in the cmd command line under Windows (it's convenient to use FAR - it has syntax highlighting).
  
• The second IDE taken here: Aptana.com - it preinstalls the Linux shell - where everything can also be done manually, as in the first version.
  

Question: How to run two servers in parallel for two different applications - created on the same computer?
Because by default the command rails serverruns the application on port 3000, and I want to run two rails applications on the same machine.

Answer 1

rails s -p 3333