Re: [Ltsp-discuss] Slow Right Click in Firefox

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It also helps to keep in mind that ltsp is merely a framework to network
boot a computer.  You don't HAVE to use ldm (X-over-ssh), it is merely
the default session type.  If you prefer, install nxclient in the
chroot, and create a screen script to run it, and set SCREEN_07 = nx

Use LTSP AND make your users happy.  

We like to enable happiness around here.  For added pleasure, when its
all set up, sit back and find the "Happy Packet Dance" on youtube, where
Fabian from FreeNX demonstrates how the technology works with dramatic
poise!

Cheers,

-Gadi

On Fri, 2009-09-25 at 08:55 -0400, Jim McQuillan wrote:
> I think NX is a great piece of technology that helps in many cases, but 
> it's not the magic bullet for all cases.
> 
> NX runs an Xserver on the server for every user.  It's kind of like a 
> proxy for X11.  Applications communicate with this in-memory Xserver. 
> The instructions for drawing then get relayed out to the the clients 
> where they get intercepted by the NX client and get written to the 
> client screen.  This does add a noticeable load to the server.  If you 
> are only running 5 or 10 clients, you probably won't notice it.
> 
> I've got an office running with 60 thin clients using LTSP.  Running 
> those 60 clients through NX would definitely be noticeable.
> 
> One of the objectives of LTSP is to be able to serve hundreds of thin 
> clients from a single server.  I don't think NX would fit very well in 
> that scenario.
> 
> As for the age of the X parts in NX, it would be great if someone would 
> volunteer to work on upgrading that to the latest version of Xorg.  It 
> would probably be an interesting project but i think it requires a 
> different set of skills from what the rest of LTSP requires.  Certainly 
> some of our developers could probably handle it, but I don't think it's 
> the best use of their time.
> 
> 
> As for Oliver's comments, I agree with everything he said except the 
> part about "ltsp developers had to drop the ball"
> 
> We knew full well that the security issues needed to be dealt with and 
> that's why, back in January of 2005 we sat down and wrote a white paper 
> outlining what it was going to take to get us beyond that issue.
> 
> Certainly Ollie remembers this document:
> 
>     http://wiki.ltsp.org/twiki/bin/view/Ltsp/MueKow
> 
> The document is almost 5 years old, but if you read it now, and compare 
> it with the current state of LTSP-5, you'll see that what we outlined 
> back then is a pretty good description of how LTSP-5 works now.
> 
> I'm thinking Ollie's gonna owe me a beer at the upcoming BTS to make up 
> for that comment :)
> 
> Jim McQuillan
> jam@Ltsp.org
> 
> 
> Oliver Grawert wrote:
> > hi,
> > Am Freitag, den 25.09.2009, 12:56 +0200 schrieb Stefan Below:
> >> Oliver Grawert schrieb:
> >>> comparing the speed of NX with its insecure and outdated snapshot of the
> >>> old included xlibs with recent implementations of xcb is somewhat like
> >>> comparing netscape 2 with firefox 3.5 :)
> > ...
> >> And i think the most important think is "user experience". What should i 
> >> tell the users? 
> > tell them you install the known fix immediately and be done ?
> > 
> >> to say you cannot compare an old library/system with the 
> >> new one? .... thats silly .... than the new library is not as good as 
> >> the old one or its programmed for a different purpose.... (and the your 
> >> comparison with netscape2 and firefox 3.5 does not fit here)
> > the new lib is written to support the old features as well as future
> > ones, ltsp is just a user of xorg, we dont write it, if xorg developers
> > make a decision to change something, please dont blame ltsp developers
> > for that (or call them silly) without the hard work sbalneav, stgraber
> > and others did put in to find a fix for the breakage thats only seen in
> > networked X connections the bug wouldnt have been fixed, please honor
> > their work.
> > 
> > the xlibs in NX are several years old and lack security updates, they
> > wree written in a time where hardware was a lot less powerfull, how is
> > it wrong to compate these libs with a browser that was written at a time
> > when hardware was less powerfull and which doesnt see any security fixes
> > anymore ?
> > 
> >> I really like the LTSP and Linux, but sometimes it makes me sad to see 
> >> that the development goes in the wrong direction.
> > 
> > which would be the tright direction in your opinion, stick with
> > unsupported upstream software, leave security holes open. stay faster
> > instead of fixing issues in new software but have support from
> > upstream ? thats what ltsp4 did and it got to the point where the ltsp
> > developers had to drop the ball simply because they couldnt cope with
> > keeping the software safe and in a supportable state.
> > 
> > if you really want the released ltsp5 versions to be bugfree, there is
> > only one thing you can do to help out: 
> > TEST DEVELOPMENT RELEASES !!!
> > 
> > help to identify bugs before the release so the bugs dont even go out to
> > the users. if you dont do that i really dont see from where you take the
> > right to complain about bugs that werent even introduced by ltsp but
> > actually fixed by ltsp developers and for which exactly these ltsp
> > developers offer bugfix packages to make your life easier.
> > 
> > ciao
> > 	oli
> > 
> > 
> > ------------------------------------------------------------------------
> > 
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> > _____________________________________________________________________
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> 
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> developing skills, take BlackBerry mobile applications to market and stay 
> ahead of the curve. Join us from November 9&#45;12, 2009. Register now&#33;
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> _____________________________________________________________________
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-- 
--------------------------------------------------------
Gideon Romm | Proud LTSP Developer
lt...@sy...

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