[K12OSN] usb wireless nics

[Jeremy Schubert]

Yeah, but we’d also like to use existing Windoze programs.  Booting to thin client and then to Windoze would be a pain...???

 

From: k12osn-bounces at redhat.com [mailto:k12osn-bounces at redhat.com] On Behalf Of "Terrell Prudé Jr."
Sent: June-18-08 1:38 AM
To: Support list for open source software in schools.
Subject: Re: [K12OSN] usb wireless nics

 

I'd just boot the machine as a thin client.  TuxType and TuxMath are already installed as part of K12LTSP.  Oh, and no script-writing needed.  :-)

--TP

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Jeremy Schubert wrote: 

Thank you TP and Peter,

I’d like to try using TuxType and TuxMath.  My clients right now are XP.  Can I run those programs from within XP or do I need to boot the machine as a thin client?  I’m very familiar with writing Windoze scripts, so I just need to know if I have to share the .exe on the server box or something else.  I can figure out the rest. 

Thanks,

Jeremy

 

From: k12osn-bounces at redhat.com [mailto:k12osn-bounces at redhat.com] On Behalf Of "Terrell Prudé Jr."
Sent: June-15-08 9:55 AM
To: Support list for open source software in schools.
Subject: Re: [K12OSN] usb wireless nics

 

Actually, I use the K12LTSP 5.0EL normally for my "regular" server CentOS 5 installs.  Works like a charm.

+1, though, to Peter's comment about going with wired on both sides (and Gig-E on eth0), even if you're just testing it at home.  Here's why:

I, too, run K12LTSP at home.  One of my tests a few years back revealed that TuxType will regularly suck up 73Mbit/sec at its default full-screen resolution.  TuxMath and ChildsPlay show similar numbers.

Now, imagine yourself on a hub (no, not switch--I mean a hub) that speaks, say, 100 Mbit/sec.  Understand that collisions are going to slow down even a single session of TuxType.  Now, let's say you add another TuxType game session on your second terminal.  Oops, not only did you just oversubscribe your server link, but collisions have just made even your two TuxType sessions nearly unplayable.  Now consider a computer lab of 15 kids instead of two.

Wireless technology isn't switched.  It's actually a form of hub.  This means that the 54Mbps that you get from that wireless connection is shared among all wireless computers that have associated to the wireless access point.  You essentially have a 54Mbps hub.  NOT good for LTSP.  

Even if it were 54Mbps switched (which it isn't), you'll still oversubscribe your server NIC--and with TuxType, TuxMath, or ChildsPlay, your client NIC as well.

Gig-E is cheap and is built into virtually all desktop and laptop motherboards since 2005.  If yours is older, Linux-friendly Gig-E NICs are $19.95.  Realtek 8129/8139 100Mbps NIC's (exceedingly LTSP-friendly) can be had for $5.  

Go wired, man; if you're gonna do it, then do it right.  Seriously.

--TP

_______________________________ 
Do you GNU <http://www.gnu.org> ? 
Microsoft Free since 2003 <http://www.cmosnetworks.com> --the ultimate antivirus protection! 



Jeremy Schubert wrote: 

I work in the school system so I will want to test this out at some point
with just a couple clients.  Also, I thought I'd get better support from
this group as anything I do with this will be slanted towards my school age
kids.
 
-----Original Message-----
From: k12osn-bounces at redhat.com [mailto:k12osn-bounces at redhat.com] On Behalf
Of Nils Breunese
Sent: June-13-08 4:35 PM
To: Support list for open source software in schools.
Subject: Re: [K12OSN] usb wireless nics
 
Jeremy Schubert wrote:
 
  

I'm actually using this for home use.  Only three PCs are  
connecting.  I
don't think I'll use it as a server for thin clients.  More for file  
storage
and proxy/firewall.
    

 
If you're not going to use it for thin clients, then why are you  
installing an LTSP distribution? I'd just do a plain CentOS install  
then.
 
Nils.
 
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