[Lilug] Speeding up remote X11 over intercontinental connections
Lewis G Rosenthal
lgrosenthal at 2rosenthals.com
Sat Apr 25 08:18:43 PDT 2015
Hey, buddy...
FreeNX is indeed your best bet on the server side.
By "rootless X session" I assume you mean a non-root login from the remote
side vs the server daemon running non-root? In either case, the answer is
yes: you can install FreeNX to run as non-root on the server side, and yes,
you can connect using OpenNX and log in as a non-root user.
Obviously, running the server daemon as non-root can have some limitations
when trying to, for example, log into a session as a user with
higher/different privs than the user account under which the server is
running (LOL), and is mainly useful for extending your own account to a
remote location vs serving a wide range of users logging into the system.
In the setup I had running, it was really only for three users, and each had
about the same privs (fairly limited, too; the main use of the desktop was
to run Firefox and Chromium, and as I say, proxy those outbound connections
through different IPs). I ran FreeNX as a privileged user mainly for my own
convenience. If I would have had a larger group of users to support, I would
have run it in a jail, most likely, which may be another option for you to
consider, depending upon how much control you have over the remote system.
HTH
On 04/24/15 09:34 pm, Justin Dearing thus wrote :
> Lewis,
>
> Thanks for the reply. I did a quick install of it on my laptop, and I
> don't see an option for a rootless X session. I'll have to play with it
> some more. I also found FreeNX, which seems to be the NX server, that
> google tells me might support a rootless X session.
>
> Justin
>
>
>
>
> Justin
>
> On Thu, Apr 23, 2015 at 3:41 PM, Lewis G Rosenthal
> <lgrosenthal at 2rosenthals.com <mailto:lgrosenthal at 2rosenthals.com>> wrote:
>
> Hey, buddy...
>
> On 04/23/15 03:21 pm, Justin Dearing thus wrote :
>
> Hello all,
>
> Long version: In the UK is a linux boxthat I often ssh into from
> Hoboken, or Cranford VPNed into Hoboken and develop against. tmux
> and vim are great for 99% of my needs. Sometimes I just want to
> run pycharm for reasons.Sometimes I want to run tmux from
> terminator. This basically works, but there is a lot of latency.
>
> My laptop is running Windows 7 with putty and the latest paid for
> Xming32 build. I turned on ssh compression. The server is running
> centos 6.6 with EPEL, some scientific linux stuff and the pythong
> 27 and python 33 SCLs. Other than using VNC instead of a rootless
> X11 server, is there anything I can do to reduce X11 latency? Is
> there any troubleshooting I could do?
>
> You may recall the setup I had going a couple of years ago for a
> client in India, where we were landing traffic here in the US and then
> going out to the net routed from several physical locations. The VNC
> latency was a killer (there was a single bad router hop in the UK
> between us which bombed on a regular basis, like a black hole).
>
> We ultimately went with OpenNX:
>
> http://opennx.net/
>
> which worked like a charm. Very low latency and low bandwidth, and
> worked consistently well, even over flaky connections.
>
> HTH
>
> --
> Lewis
> -------------------------------------------------------------
> Lewis G Rosenthal, CNA, CLP, CLE, CWTS, EA
> Rosenthal & Rosenthal, LLC www.2rosenthals.com
> <http://www.2rosenthals.com>
> visit my IT blog www.2rosenthals.net/wordpress
> <http://www.2rosenthals.net/wordpress>
> IRS Circular 230 Disclosure applies see www.2rosenthals.com
> <http://www.2rosenthals.com>
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Lewis
-------------------------------------------------------------
Lewis G Rosenthal, CNA, CLP, CLE, CWTS, EA
Rosenthal & Rosenthal, LLC www.2rosenthals.com
visit my IT blog www.2rosenthals.net/wordpress
IRS Circular 230 Disclosure applies see www.2rosenthals.com
-------------------------------------------------------------
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