I'm hoping to run an Ubuntu server which will in future be able to communicate to an iOS app. Which of these will allow me to do that?
[ ] OpenSSH server [ ] DNS server [ ] LAMP server [ ] Mail server [ ] PostgreSQL server [ ] Print server [ ] Samba file server [ ] Tomcat Java server [ ] Virtual Machine host [ ] Manual package selection
EDIT: This is my first time using a server and I just want to explore and test and mess around. I'd like to have an app where you could type something into a text box, have the text go to the server, and have the server respond with another text which could be displayed on the iOS app.