I realized that the hostname had changed while I was doing some work using terminal in OS X Yosemite. I thought there might be an `IP` address conflict so I reset it. However I still get another device's name (someone else's iPhone, to be exact) when I use the `hostname` command:

    Last login: Fri May  1 15:52:42 on ttys000
    SomeonesiPhone:~ irem$

    SomeonesiPhone:~ irem$ hostname
    SomeonesiPhone.wireless.duke.local

What's going on and how can I fix this?

Edit: It appears the `IP` address has not changed. But the address that I get by doing `ipconfig getifaddr en0` is different from what google gives me.