Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.eso.org/~qc/procs/VNC/QCgroup_VNC.pdf Дата изменения: Wed Jan 30 13:14:41 2008 Дата индексирования: Sun Apr 13 19:13:01 2008 Кодировка: Поисковые слова: d rad

QC Group Meeting: VNCserver / VNCviewer
Mark Neeser

What is it?

Virtual Network Computing
==> remote control software that allows you to view and control the desktop of one computer from the desktop of another, anywhere on the net and independent of operating systems.

Requirements:
1. VNCserver must be installed on the machine that you want to control. 2. VNCviewer (or VNCclient) must be installed on the machine from which you want to control 1. Both VNCserver and VNCviewer already exist on (all?) DFO machines!


Set-up Cookbook:
A. Download and install VNCviewer on your "remote" machine (laptop, home PC, etc.) 1. Mac OS X:

(VNCviewer Enterprise 4.2.7 <= best) http://www.realvnc.com/cgi-bin/download.cgi (Chicken of the VNC 2.0) http://sourceforge.net/projects/cotvnc/ http://www.versiontracker.com/dyn/moreinfo/macosx/9424 (VNCviewer 2.0.1)

2. Linux:

http://www.tightvnc.org/download.html

(TightVNC)

3. Windows:

http://www.realvnc.com/products/free/4.1/winvncviewer.html (VNCviewer documentation) (VNCviewer download) http://www.realvnc.com/products/free/4.1/download.html

Some documentation:

http://www.nyu.edu/its/humanities/docs/vnc.html

http://www.realvnc.com/documentation.html


B. Start up the VNC server on your host machine:

· ·

login to your host: start the vncserver :
You will then get an output message similar to: New 'dfo09:1 (sinfoni)' desktop is dfo09:1

ssh sinfoni@dfo09.hq.eso.org vncserver -depth 16 -geometry 1280x1024 remember this display number

Starting applications specified in /home/sinfoni/.vnc/xstartup Log file is /home/sinfoni/.vnc/dfo09:1.log

· ·

set access password: logout from host:

vncpasswd exit

(password will be set to ssh login user (ie. sinfoni))

C. Start up the VNC viewer on your local terminal:
vncviewer dfo09.hq.eso.org:1 -Shared

you must specify a DISPLAY number as given above by the server. Multiple sessions of the VNCserver can be run, allowing many people to connect and view different desktops on one server.

Shared ==> multiple sites can participate in a session.


D. Using VNCviewer :

· ·

from within ESO (Garching (HQ and IPP), ESO Guest House, La Silla, and Paranal) nothing else is needed to log in. from the beach:

requires VPN . . .Virtual Private Networks (advanced encryption and tunneling
to permit secure, end-to-end, private network connections )

http://www.eso.org/projects/it/services/ras/vpn_index.htm request a VPN account from HelpDesk:

(info and installation)

http://www.eso.org/projects/it/helpdesk/forms/vpn-request.html

E. Troubleshooting:

·

if VNCserver crashes or host is re-booted: check that previous VNC's are not running (eg. ps -efl | grep vnc) if so, kill them (eg. vncserver -kill dfo09:1) restart VNCserver as in B. above