Server icon, computer icon: from Tangerine icon theme, CC BY SA 2.5, Copyright 2004-2006 Canonical Ltd. Ruled_paper_note_with_pin.svg: from http://commons.wikimedia.org/wiki/File:Ruled_paper_note_with_pin.svg, Author: Andreas Plank, CC-BY-SA-3.0 Unported dialog-password.svg: from Gnome icon theme, CC-BY-SA 3.0 United States, Author: GNOME Project All other icons from Tango icon theme, public domain.