Hi Bob
On 18/04/15 22:07, Bob Dunlop wrote:
Hi,
On Sat, Apr 18 at 07:35, Martin Hepworth wrote:
So whats wrong with ssh on its own, or if need a gui x11 tunnelled over ssh
to an x-server on the remote?
Can I also just say Duh?
What's wrong with using X11 or as often known X-windows. It's a client/
server system designed from day one to allow remote machines to display
graphics on another remote server. It's the default on most Unix/Linux
boxes, all be it with remote and local systems being the same machine on
todays PCs.
At work I just ssh to a remote box, local net or other side of the world.
Behind the scenes ssh tells the remote where the graphics display is
located. Then any graphics utility I fire off appears in my local
machine's desktop, fully intergrated, no problem.
Been doing that since 1986 at least. Remote desktop and the like are just
tools to help Microsoft Windows to catch up with Unix common practice.
If you have firewalls or similar in the way just add -X to your ssh
parameters to create an automatic tunnel.
X through SSH is OK on local network, but I've always found it unusably
slow for remote access. And if you want an entire desktop then as far as
I know the only pure X option is XDMCP and into Xephyr. Again no good
for slow connections as this is both slow and insecure into the bargain
(unless you're going to run Xephyr on the remote and tunnel that). And
you can't cut and paste to/from Xephyr. Ironically, Windows is better
catered for than Linux with X servers that can handle a remote desktop
(Xming, Cygwin/X, Mobaxterm, but they are all sensitive to the remote
desktop and local video drivers, all handle cut and paste well).
Then there's NX. When I tried this a few years back it was unbelievably
fast over a slow link and seemed to be the answer, but seems to have
been largely abandoned.
VNC is (IMHO) messy to set up. Certainly with the servers I experimented
with you have to define all the resolutions you think you'll need on
different ports. But it works well over slow links. I've never had
cut/paste work.
Then there's RDP. Fast over slow links, secure. I haven't tried XRDP so
don't know if there are other factors, but I think there are good
reasons to use it over pure XDMCP (also, should give remote audio, cut
and paste).
Terry - here are a few links which indicate you're not alone in the
problem you are getting and which may provide a lead:
http://c-nergy.be/blog/?p=5305
(see first comment)
http://blogs.msdn.com/b/jimblizzard/archive/2015/02/25/rdp-to-ubuntu-linux-vm-in-azure.aspx
http://blogs.msdn.com/b/plankytronixx/archive/2013/11/12/running-a-remote-desktop-on-a-windows-azure-linux-vm.aspx
Cheers
Tim
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