launch a script at login logout

[antonello facchetti]

Il 16/01/2013 12:19, d.davolio at mastertraining.it ha scritto:
> If I understand well, it could be /opt/ltsp/<arch>/usr/share/ldm/rc.d/
>
> Just because I just read the manual here 
> https://sourceforge.net/projects/ltsp/files/Docs-Admin-Guide/LTSPManual.pdf/download 
> (Chapter 21, RC scripts).
>
> Hope this can help.
>
>
>
> On 01/16/2013 11:48 AM, antonello facchetti wrote:
>> I'm renewing a class labwith edubuntu 12.04.
>> It is a wireless network (no time to explain why, but it has to be 
>> wireless), therefore with less performances than a cables one(at 
>> least I was not able to get the same performances).
>> So, thinking about the management of users, with / home on a 
>> centralized nfs server, I get slowness issue (example: 25 students 
>> simultaneously opening openoffice writer, and getting stuck on the 
>> splash screen of openoffice) .
>>
>> I thought I'd tackle the problem by minimizing networking and trying 
>> to do as much as possibie locally, trying a sort of "roaming" solution.
>> This is my solution.
>> I mount the homes from the server on a directory called /server in 
>> the local clients.
>> Each time a user logs in, immediately after thelogin, I execute a:
>> rsync -avq exclude = '. *' /server/$USER /home/
>> that copies from the server the user's documents (only documents and 
>> not the hidden configuration files). Then the user works locally 
>> without affecting the network.
>> At logoff I launch the opposite command:
>> rsync -avq exclude = '*.' /home/$USER /server/
>> to synchronize all work in the server.
>>
>> Before, the lab had ubuntu 10.04 (gnome) clients, and the solution 
>> was to put the two commands in the scripts /etc/gdm/PostLogin/Default 
>> and /etc/gdm/PostSession/Default.
>> It worked quite well. Although the drawback was that you had to 
>> "closesession", as the script did not start with "stop system."
>>
>> Now the laboratory has new machines wth Edubuntu 12.10. There is a 
>> possibility to choose Unity, Kde, Xfce.
>> So the positioning of the commands in /etc/gdm is no longer possible 
>> (there's no /etc/gdm directory anyway).
>> Where should I then put the two rsync commands in order to have them 
>> always executed with any desktop environment the user chooses?
>>
>> TIA
>> Antonello
>>
>>
>
thank you,
this is not a ltsp lab, but a "traditional" lab with nfs-server for /homes

But your suggestions made me think that placing the rsync in 
/etc/rc.local could work for the login (the manual says that "S scripts 
are executed after the user has logged in, but before the X session is 
run." and the last command in /etc/rc5.d is @99rc.local.
The problem would be only at logout as I can't find any hook-program as 
rc.local for the case.

Antonello