Quotes are you friend ["ipx" (32 results)][1] ["ipxe" (27 results)][2] [ipxe (92 results)][3]. 


  [1]: http://serverfault.com/search?q=%22ipx%22
  [2]: http://serverfault.com/search?q=%22ipxe%22
  [3]: http://serverfault.com/search?q=ipxe