[K12OSN] Teacher access to teacher tool

[Robert Arkiletian]

On 9/1/06, James P. Kinney III <jkinney at localnetsolutions.com> wrote:
>
> On Fri, 2006-09-01 at 14:08 -0700, Robert Arkiletian wrote:
>
> >
> >
> >         Any suggestions?
>
>
>
> TeacherTool is blowing away the folks in Atlanta!
>
> Watching the look as we launched 23 simultaneous copies of OpenOffice with
> one button click was priceless!
>
> The speedup with the IP address only (instead of the hostname) I am
>   willing to sacrifice in favor of the hostname list and a way to filter
> the list. We are going to have 150-180 thin clients per server (Big
> Servers!) and the fun of a teacher accidentally logging out a student
> in another room is not something I want to play with :)



Hmm. This is an issue when you have big servers.  Without doing big
additions to my code :) I have a couple of ideas.

1) Not sure if each student has their own username but if they are just
using generic logins like comp1, comp2, comp3, etc then you can
differentiate with usernames like Acomp1, Bcomp1, Ccomp1, etc where A,B,C
stand for different rooms. Fl_TT will sort alphabetically so all students in
room A will be in one solid block in the list.

2)I just thought of this but it's kind of tricky since dhcp gives out ip's
dynamically. If you can manage to tie an ip address to a specific mac
address (client machine) you could potentially make each machine according
to their mac address (and therefore location or classroom) start a tiny
little program at login that does nothing and takes up almost no memory. The
important aspect would be the name of the program. Call it "classA" for all
computers in room A. I think you get the idea. So you could therebye use the
FIND button in Fl_TT to select only those users who are in room A by typing
"classA" and hitting FIND. You could then broadcast, logout, whatever and
only affect the kids in your room.


I have tweaked the source files and have the hostname back on. If you
> have any suggestions on a best way to implement a filter ("show only
> hostnames that begin with foo") I'll look at a patch.


I'm not sure why ip is less useful than hostnames since by default an ip of
say 192.168.0.252 translates to ws252.ltsp. Since Fl_TT can't access another
K12LTSP server the .ltsp part of the hostname should always be the same.


Also needed is a way to refresh the machine list without having to
> restart the tool.


Just click on the Users button whenever you want a refreshed list. No need
to restart.


--
> James P. Kinney III
> CEO & Director of Engineering
> Local Net Solutions,LLC
> 770-493-8244
> http://www.localnetsolutions.com
>
> GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
> <jkinney at localnetsolutions.com>
> Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
>
>
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>


-- 
Robert Arkiletian
Eric Hamber Secondary, Vancouver, Canada
Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/
C++ GUI tutorial http://www3.telus.net/public/robark/
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