The software components were originally downloaded from http://www.nomachine.com/sources.php

The software has been improved via various patches by the X2Go project.
The patches reside in the subfolder doc/applied-patches/ of this source tree.

Copyright (c) 2015 Arctica Project, https://github.com/ArcticaProject/.
Copyright (c) 2011-2014 X2Go Project, http://www.x2go.org/.
Copyright (c) 2001-2011 NoMachine, http://www.nomachine.com/.

   This program is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by the Free
   Software Foundation; either version 2 of the License, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   more details.

   You should have received a copy of the GNU General Public License along with
   this program; if not, write to the Free Software Foundation, Inc., 51
   Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

Parts of this software are derived from DXPC project. These copyright
notices apply to original DXPC code:

   Redistribution and use in source and binary forms are permitted provided
   that the above copyright notice and this paragraph are duplicated in all
   such forms.

   THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
   WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
   MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

   Copyright (c) 1995,1996 Brian Pane
   Copyright (c) 1996,1997 Zachary Vonler and Brian Pane
   Copyright (c) 1999 Kevin Vigor and Brian Pane
   Copyright (c) 2000,2001 Gian Filippo Pinzari and Brian Pane

The files MD5.[ch] are copyright (C) 1999, 2000, 2002 Aladdin Enterprises.

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.