Set up VNC step
to securely connect to the Uconn Physics Computers
last updated: 2005-11-20
1. What's VNC?
VNC stands for Virtual Network Computing . It is Free set of software tools which allows you to view a computing 'desktop' environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. It is developed by AT&T Laboratories Cambridge, presently maintained by RealVNC.
2. Download VNC and Putty.
"PuTTY is a free implementation of Telnet and SSH for Win32 platforms, written and maintained primarily by Simon Tatham, who lives in Great Britain."
3. Get the server name or IP.
It is impossible and not necessary to remember all the name and IP of the server in Physics Department. You can check them here: Secure remote access to UConn Physics Computers .By default the access to this area is granted to Storrs campus Physics students, staff, and faculty. Please contact email@example.com if you do not have default rights but need an access to this information.
4. Configure PuTTY.
A: open PuTTY
a1, Type host name,
a2, select protocl: SSH
a3, give a name for savedsessions.
a4, save it.
B: Click SSH,
B1, Check "Enable compression
B2, Select perferred SSH protocol version: 2
C: Click Tunnels:
C1: Check Enable X11 forwarding.
C2: Type source port : 5901
C3: Type Destination : pyotr.phys.uconn.edu:5901
C4: click Add
D: Go back to Session:
D1, save it
D2, click "open"
E: PuTT login:
E1: type your login ID and password
E2: type the command "vncserver".
This result should like this:
5. Open VNCview:
F1: type the server as: 127.0.0.1:1
Then you Go It!
6. Before you leave:
A. Please logout first then close VNC window.
B: kill the service in PuTTY before you close it:
Note: the number ":1" May Vary by Your Mileage.
It will be more convenient for you to follow these rules:
a) Safely use computers in Physics Department, like NEVER share your account with others; ALWAYS close vncserver before you leave.
b) Run only ONE vncserver per user per computer.
c) Disable screen saver. Because since it is useless for your local machine and it consumes up to 30% CPU of the server. (how to disable screen saver?)
8. FAQ: Frequently Asked Questions.
1) When I
login, I got bad/strange/un-friend desktop, I can not really do anything there.
You have to edit the file .vnc/xstartup. Follow this step by step:
a) In the putty command line, type command: vi .vnc/xstartup
NOTE: vi is an editor (command reference is here) and do not forgot the dot "."
b) Delete everything in the file and add two lines exactly like this:
(note: for SUSE system, please use this xstartup file
c) save and exit. Login again with vncview and everything should be fine now.
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