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-
- VNC 4.0 Source Distribution for Unix platforms
- ==============================================
-
- Copyright (C) 2002-2004 RealVNC Ltd. All Rights Reserved.
-
- This software is distributed under the GNU General Public Licence as published
- by the Free Software Foundation. See the file LICENCE.TXT for the conditions
- under which this software is made available. VNC also contains code from other
- sources. See the Acknowledgements section below, and the individual files for
- details of the conditions under which they are made available.
-
-
- There are six programs here:
-
- vncviewer - this is the VNC viewer, or client, program for X.
-
- Xvnc - this is the X VNC server - it is both a VNC server and an X server
- with a "virtual" framebuffer. You normally use the vncserver script
- to start Xvnc.
-
- vncserver - this is a wrapper script which makes starting an X VNC server
- (i.e. desktop) more convenient. It is written in Perl, so to use
- the script you need that.
-
- vncpasswd - this program allows you to change the password used to access
- your X VNC desktops. The vncserver script uses this program when
- you first start a VNC server.
-
- vncconfig - this program is used to configure and control a running instance
- of Xvnc.
-
- x0vncserver - this is an inefficient VNC server which continuously polls any
- X display, allowing it to be controlled via VNC. It is
- intended mainly as a demonstration of a simple VNC server.
-
- In addition to these standalone programs, this distribution can also be used to
- turn the native X server for a platform into a VNC server. For XFree86 version
- 4 servers, this is done using a module loaded at run-time. For other X servers
- it requires replacing the native X server binary.
-
- To build this distribution you need a C++ compiler as well as a C compiler.
- You also need a reasonably recent version of the X window system installed.
- This comes as standard with most unix machines. If you don't have it
- installed, see http://www.xfree86.org or http://www.x.org
-
- To build everything but Xvnc, do:
-
- % ./configure
- % make
-
- This should build first some libraries - zlib, rdr, network, Xregion, rfb and
- tx - then vncviewer, vncconfig and vncpasswd. If you already have zlib
- installed on your system you can run "./configure --with-installed-zlib" if you
- prefer (this is strongly advised on FreeBSD, since we've been told there are
- problems otherwise).
-
- Building Xvnc
- =============
-
- Building Xvnc and the VNC support for native X servers is much more complex.
- If you don't need to build it, skip to the section below on installing.
-
- Xvnc differs from the other programs in that it is built inside the X source
- tree. Unlike previous versions of Xvnc, we do not provide an X source tree
- with this distribution. We have designed the distribution to be as independent
- as possible of the X tree used.
-
- We have successfully used XFree86 version 4.3.0, 4.2.0 and 3.3.6 (available
- from http://www.xfree86.org). You could also try the original X.org tree
- available from http://www.x.org but this does not build as easily because of
- lack of support for C++, no support for building server only, and other issues.
- Note that the X tree is enormous and notoriously difficult to deal with -
- building it is not for the faint-hearted!
-
- Once you have a copy of the X source tree, make sure it is unpacked at the top
- level of this distribution, so that the xc directory of the X source tree
- matches the xc of this distribution, for example:
-
- % tar xzf X420src-1.tgz
-
- Then you must apply a patch to some files in the X source tree:
-
- % patch -Np0 <xc.patch
-
- If this works, you should be able to build the entire X tree, including Xvnc:
-
- % cd xc
- % make World
-
- This will take a long time, and will quite probably fail for one reason or
- another! If you are having trouble, we suggest you try to build the X tree in
- isolation first before attempting it with the VNC additions.
-
- If successful, in the xc/programs/Xserver directory you should find an Xvnc
- binary, plus the native X server binary(ies) for your platform with VNC support
- compiled in. If you are building from an XFree86 version 4 tree on a supported
- platform, you should also find a vnc.so module in
- xc/programs/Xserver/vnc/modules.
-
- Exactly which X extensions and features are built into Xvnc and the native X
- server binary is determined by the settings in xc/config/cf. The file vnc.def
- contains the settings we use to build our binary distributions. You may need
- to edit this and the other files as appropriate.
-
- Installing
- ==========
-
- Different unix platforms have different conventions for where software should
- be installed. To copy the programs to some directory which is in your PATH
- environment variable, such as /usr/local/bin, there is a script called
- vncinstall which you can use:
-
- % cd ..
- % ./vncinstall /usr/local/bin
-
- This will also attempt to install the manual pages in an appropriate directory.
- You can specify an alternative directory as a second argument to vncinstall:
-
- % ./vncinstall /usr/local/bin /usr/local/man
-
- It will also try to install the vnc.so XFree86 version 4 module if appropriate.
- This will be copied to the /usr/X11R6/lib/modules/extensions directory and can
- be enabled like any other module by adding a Load "vnc" line to the Module
- section of XF86Config. The parameters listed in the Xvnc manual page can be
- set as options in XF86Config e.g. Option "passwordFile" "/root/.vnc/passwd".
- Note that for some reason options cannot be set in the Module section of
- XF86Config - try the Screen section.
-
- If you want to use the Java VNC viewer, you should copy the files from
- the java directory to some suitable installation directory such as
- /usr/local/vnc/classes:
-
- % mkdir -p /usr/local/vnc/classes
- % cp java/* /usr/local/vnc/classes
-
- We recommend that you use the vncserver script to run Xvnc for you. You can
- edit the script as appropriate for your site. Things you may need to change
- include:
-
- * The location of Perl - if Perl is not installed in /usr/bin you'll need
- to edit the "#!/usr/bin/perl" first line of vncserver.
-
- * Xvnc's font path and color database. If you have an installation of
- X which is not in the standard place you may need to add arguments to the
- Xvnc command line to set these. These should be appended to the $cmd
- variable at the comment "# Add font path and color database...".
-
- * $vncJavaFiles - this specifies the location of the files for
- the VNC viewer Java applet. The default is /usr/local/vnc/classes.
-
-
- ACKNOWLEDGEMENTS
- ================
-
- This distribution contains public domain DES software by Richard Outerbridge.
- This is:
-
- Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge.
- (GEnie : OUTER; CIS : [71755,204]) Graven Imagery, 1992.
-
-
- This distribution contains software from the X Window System. This is:
-
- Copyright 1987, 1988, 1998 The Open Group
-
- Permission to use, copy, modify, distribute, and sell this software and its
- documentation for any purpose is hereby granted without fee, provided that
- the above copyright notice appear in all copies and that both that
- copyright notice and this permission notice appear in supporting
- documentation.
-
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
- Except as contained in this notice, the name of The Open Group shall not be
- used in advertising or otherwise to promote the sale, use or other dealings
- in this Software without prior written authorization from The Open Group.
-
-
- Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the name of Digital not be
- used in advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
-
- DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
- ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
- DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
- ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
- ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- SOFTWARE.
-
-
- This distribution contains zlib compression software. This is:
-
- Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler
-
- 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.
-
- Jean-loup Gailly Mark Adler
- jloup@gzip.org madler@alumni.caltech.edu
-
-
- This distribution contains Java DES software by Dave Zimmerman
- <dzimm@widget.com> and Jef Poskanzer <jef@acme.com>. This is:
-
- Copyright (c) 1996 Widget Workshop, Inc. All Rights Reserved.
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for NON-COMMERCIAL or COMMERCIAL purposes and without fee
- is hereby granted, provided that this copyright notice is kept intact.
-
- WIDGET WORKSHOP MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE
- SUITABILITY OF THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT
- NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
- PARTICULAR PURPOSE, OR NON-INFRINGEMENT. WIDGET WORKSHOP SHALL NOT BE
- LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING,
- MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
-
- THIS SOFTWARE IS NOT DESIGNED OR INTENDED FOR USE OR RESALE AS ON-LINE
- CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING FAIL-SAFE
- PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, AIRCRAFT
- NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT LIFE
- SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE
- SOFTWARE COULD LEAD DIRECTLY TO DEATH, PERSONAL INJURY, OR SEVERE
- PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH RISK ACTIVITIES"). WIDGET
- WORKSHOP SPECIFICALLY DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY OF
- FITNESS FOR HIGH RISK ACTIVITIES.
-
- Copyright (C) 1996 by Jef Poskanzer <jef@acme.com>. All rights
- reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- 1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
- BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
- Visit the ACME Labs Java page for up-to-date versions of this and other
- fine Java utilities: http://www.acme.com/java/
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