Hi guys am trying a little project to set up a home web/email server using ubuntu server, but have come across a problem, Installed server fine but the box is to connect into my DMZ router via wireless, not sure of the commands to enable/setup wireless network in the server command line,

Also if i install a gui and then startx will it restart everytime i powerdown the server as i dont really want to use gui but as i am new to linux servers sometimes a gui is nice to have

Your help as always is appreciated in advance

P.S.

any hints or tips for setting up a web/email server in ubunutu are welcome as well.