{{MessageBox|backgroundcolor = Using #FBB|image =Warning.png|heading =WARNING|message = '''NOTE:''' This is for Fedora-based systems ONLY.<br />Guidance may not work for Amahi 7 or greater. Sorry, but if you break your HDA we cannot provide support}}{{NeedsUpdate}}  ----  <div style="border: 1px solid #A3B1BF; padding: .8em 1em; background-color: #E6F2FF; margin: 0px 1em;">'''NOTE:''' The one-click [https://www.amahi.org/apps/vnc VNC to use App] has been discontinued for Amahi 7 or greater. The reason is that it pulls a remote lot of packages, including desktop and that breaks DNS in the HDA Fedora.</div><br /> :'''NOTE:''' See [[TigerVNC]] for Amahi 8/9 (Fedora 21/23) guidance.__TOC__ = VNC remote =

* You would like a Linux desktop to the HDAremotely* You run your HDA headless (no monitor) and like to still use a desktop in it* You would like to use a GUI to configure printer(s)* You enjoy using or have a scanner or other device that requires a desktop program to configure and the Linux desktopmachine is headless

= Client : Installation = Download the client software and install: * Windows: [http://realvnc.com RealVNC], [http://www.uvnc.com UltraVNC], [http://www.tightvnc.com TightVNC]* MAC: [http://sourceforge.net/projects/chicken/ Chicken], [http://cotvnc.sourceforge.net/ Chicken of the VNC] (do not use internal vnc client as there are some issues)* For Linux, you have the vncviewer package, available in most, if not all distros. For Fedora 12, do the following as [[Open_Terminal_as_root|'''root''']] user: yum -y install tigervnc = Server Installation = There are various ways to get the server going in your HDA. All of them require the server software.# Amahi [http://www.amahi.org/apps/VNC VNC] application.# Manually as described below (notes may require some revision). === Manual Install ===* Complete the steps in [[GUI_Install_for_Express_Disc|Express Disc Desktop]] guidance (Amahi 7 ONLY). * As root, install the server:  yum -y install tigervnc-server == Method 1 ==* Open a terminal, become root and install the VNC server (tigervnc-server) as stated in the Manual Install section. When the install has completed, press ctrl-D to end the root session. Leave the terminal open, or open one now.

* [http://realvncThe following commands are entered as '''User'''.com/ For Windows]* [http://cotvnc.sourceforge.net/ For MAC]* For Linux, you have the vncviewer package, available in most, if not all distros

Remember when * Type vncpasswd and press enter. The system will prompt you start for a password. Type a password and press the server enter key. The system will tell prompt you which session it is running (like :1, :2 .to verify the password.Type the password a second time and press the enter key.), so your settin like this:

hda* Type vncserver and press the enter key. The system will create the configuration files. You should see output similar to this: xauth: creating new authority file /home/user/.xauthority New 'host.localdomain:1 (user)' desktop is host.localdomain:1 Creating default startup script /home/user/.vnc/xstartup Starting applications specified in /home/user/.xauthority Log file is /home/user/.vnc/host.localdomain:1.log

When You can edit the configuration files using your choice of editor. Nano is used below.Note that when "username" is installedshown, type this at you need to enter your user name. * Type nano /etc/sysconfig/vncservers and press the enter key. Nano will open the file. Find the command linefollowing lines: '#' VNCSERVERS="1:username" '#' VNCSERVERARGS[1]="-geometry 800x600 -nolisten tcp -localhost"

* Uncomment both lines by removing the # at the beginning of the lines. Edit the lines so they appear as follows: VNCSERVERS="1:username" VNCSERVERARGS[1]="-geometry 1024x768 -nolisten tcp" vncserverEnter your username in place of "username". After "geometry", you can enter any resolution you desire. You can come back and change this if necessary. Press ctrl-X to exit Nano. You will see the prompt at the bottom "Save modified buffer (ANSWERING "No" WILL DESTROY CHANGES) ? Press the Y key. The prompt will change, showing you the file name. Press the enter key, this will store your change and exit Nano.

The first time it runs it * Finally, type chkconfig vncserver on and press the enter key. This will ask for setting up a password. You can also specify a size, which I typically do a hair smaller than make the VNC server start when the desktop I plan to use it fromcomputer starts. Example for 1280x1024:

vncserver * Press ctrl-geometry 1250x1000D to end the root session, and then press ctrl-D again to close the terminal.

More detailed instructions are available [http* That's it - Run your VNC Client and enter hda:1 as the host//wwwIP address.g-loadedYou should now see your HDA Desktop screen.eu/2005/11/10/configure-vnc-server-*If you are interested in-fedora/ here].more security for your VNC connection, check the link listed below under "General Instructions"

= Running * Repeat the Full Gnome Desktop =configuration for each user you wish to be able to connect via VNC.* Note you can have displays for users 1-9 and each will connect to their VNC session at port 590n (some VNC clients 'know' the 590 part and only have you enter n). Make certain that you have forwarded the correct port(s), or the range 5901 through 5909.* Add -localhost to options if you are connecting through a ssh tunnel or only locally. This adds some security.

In order to run == Method 2 ==* To start the full gnome desktop server in vncyour HDA, you have to edit need install tigervnc-server rpm package:* From the '''root''' user: yum -y install xinetd chkconfig vncserver off service vncserver stop* Create /etc/gdm/custom.conf file and add the following: #GDM configuration storage [xdmcp] Enable=true [chooser] [security] DisallowTCP=false [debug]* Create /etc/xinetd.d/vnc1024 file and add the following (you can change the screen resolution by changing the geometry setting): service vnc1024 { disable = no socket_type = stream protocol = tcp group = tty wait = no user = nobody server = /usr/bin/Xvnc server_args = -inetd -query localhost -geometry 1024×768 -depth 16 -once -fp /usr/share/X11/fonts/misc -securitytypes=none }* Edit /etc/services and comment out the two lines as listed below: #vnc-server 5900/tcp # VNC Server #vnc-server 5900/udp # VNC Server* Add this file in line below the two lines you commented out and save the changes: vnc1024 5900/tcp # VNC and GDM* Now restart the xinetd service service xinetd restart* Run your VNC Client and enter your HDA IP address for host/IP address. You should now see your HDA Desktop login screen. If you don't see the home directory login screen, a reboot of the HDA may be required. This can be done via the dashboard or by executing the following as '''root''' user you want to run vnc on: reboot now

and make sure it has these two lines uncommented* Every time the HDA is rebooted, per when VNC is needed, ssh to the comment thereHDA* The first time without do: vncserver -geometry 1550x1100* After the first time, I type vncs. I have an alias in ~/.bashrc: alias vncs='vncserver -geometry 1550x1100 &> /dev/null &';

<pre># Uncomment the following two lines for normal desktopNotes:unset SESSION_MANAGERexec /etc/X11/xinit/xinitrc</pre>

= Killing the Server General Instructions =More detailed instructions are available [http://www.g-loaded.eu/2005/11/10/configure-vnc-server-in-fedora/ here].

vncserver This helpful page has helped with [http://www.windowsreference.com/internet-explorer/windows-has-blocked-this-software-because-it-cant-verify-kill :1the-publisher/ blocking VNC]