SLUG Mailing List Archives
[SLUG] RE: VNC on Live Server for RH 7.1
- To: "'David Guest'" <dguest@xxxxxxxxxxxxxxx>
- Subject: [SLUG] RE: VNC on Live Server for RH 7.1
- From: "LS" <lselvon@xxxxxxx>
- Date: Sat Mar 29 17:03:02 2003
- Cc: <slug@xxxxxxxxxxx>
Thanks for the inputs. After reviewing this url
and the one given below by David I finally understood
what to do from Putty.
Here is what I did:
1. I connected via a normal SSH session to
the server, and started the "vncserver" .
This time the 'X desktop' was display
2. From this format of vnc via secure ssh
ssh -L x:localhost:y my_server
>From Putty, I created another session
. For this one from "SSH->Tunnel" I
had the following:
- X Display Location : localhost:0
- Added a forward port with :
Source : 5903 (i.e x from above)
Destination : localhost:5902 (from localhost:y)
3. I saved it. I may have to update the "SSH->Tunnel"
regularly as I don't think vncserver will always
run (see my query below on that). So I may get a
different X display.
4. I started this connect and connected to the
5. From my windows I started vncviewer and typed
localhost:3 (this in effect is forwarding
to port 5902)
This happily asked me for the password and started
the AfterStep X display manager.
I suppose that I can assume that my connection is
secure now. Right ?
Ok now the vncserver issue. I probably don't need
To do 1) is vncserver is always running. The
destination port should then always be whatever
The display was before.
To connect then I just have to do step 4) from
my saved forwarded connection and 5).
So first off, is it safe to leave "vncserver"
always up ?
2nd, How do I make "vncserver" permanently
run on the server ?
As a test, I just closed the Putty session for
the forward connection, and got this message:
Waiting for forwarded connections to terminate...
The following connections are open:
#0 unknown (remote did not supply name) (t4 r256 i0/0 o0/0 fd 9/9)
I closed the vncviewer session, and this closed
The Putty session.
Now I restarted Putty for the same forward
Connection, and started the vncviewer with
localhost:3, and it still works.
This tells me that vncserver once started
always stays up once I started it.
It will probably die when I re-start the server
or kill the process. Am I right here ?
> -----Original Message-----
> From: David Guest [mailto:dguest@xxxxxxxxxxxxxxx]
> Sent: Thursday, 27 March 2003 06:38
> To: Louis Selvon
> Subject: VNC on Live Server for RH 7.1
> On Wed, 2003-03-26 at 23:10, Louis Selvon wrote:
> >Hi David et al:
> >My version of Putty was an old one.
> >>Try ftp://ftp.tartarus.org/pub/people/owen/putty-x86.exe .
> >I have downloaded this one. I see the X-Forwarding stuff under
> >SSH -> Tunnels .
> >So I tick "Enable X11 Forwarding".
> >For "X display location" what do I enter ?
> >Sorry I need a bit more assistance ? From the steps I state
> below can I
> >be given an example on how Putty does this ?
> I wrote a mini-howto for my colleagues. Follow the links for
> the putty stuff.http://www.gmc.mine.nu/remote/
> As the others have mentioned putty takes care of the
> security. You don't need it for X11 forwarding. If the box
> you want to connect to is behind the firewall put its local
> ip there. In our setup 10.0.0.5 is behind the firewall.
> Otherwise "localhost" will suffice.
> VNC works on 5900 or higher. You can also use it on 5800 or
> higher with a java enabled browser. We mainly use it for RDC
> since this remains significantly faster.