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
Thanks!
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.