[310] in athena10

home help back first fref pref prev next nref lref last post

Re: Sound configuration on cluster machines

daemon@ATHENA.MIT.EDU (Jonathan Reed)
Tue Jul 8 12:21:17 2008

Cc: athena10@mit.edu
Message-Id: <6E76FCC4-FAD6-4664-B8FD-68635A3B3BE5@mit.edu>
From: Jonathan Reed <jdreed@MIT.EDU>
To: Kenneth Arnold <kcarnold@mit.edu>
In-Reply-To: <48738F86.3090902@mit.edu>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Content-Transfer-Encoding: 7bit
Mime-Version: 1.0 (Apple Message framework v919.2)
Date: Tue, 8 Jul 2008 12:20:32 -0400


On Jul 8, 2008, at 12:02 PM, Kenneth Arnold wrote:

> I suppose it's as good a time as any to note that cluster machines  
> will need additional configuration beyond what debathena-workstation  
> provides, or should provide. For example, the gdm config needs to  
> disable shutdown and (design decision needed) switch user options.  
> And of course disabling startup sounds (and/or just mute the mixer,  
> or figure out how to turn off the internal speaker; headphone jack  
> sound is good though).

Why do we want to disable shutdown and restart?  I think it's useful  
to have them as menu options.   We tell people not to shutdown cluster  
machines, but anyone who really wants to can log in as root and run  
"poweroff".  Or is that we lack an audit trail if someone uses the  
"Shutdown" login option?   Certainly the XDMCP option should probably  
go away.

And yes, I'd favor a mixer-based solution to the sound problem.  I  
agree that given that we're not going to deploy in clusters anytime  
this semester, we don't necessarily need a technical solution.    
Probably just a FAQ of "How do I turn off sound?" will be fine, which  
I can write.

In the general case, much of my testing so far has been done with  
debathena-workstation, because my primary usage model of Athena is a  
workstation with mostly cluster config.  That's also our current  
baseline support - setting PUBLIC to false immediately starts moving  
the user into unsupported land.  (For OLC, "unsupported" is defined as  
"We will try our best to help you, but there may come a point at which  
you're on your own").   However, it seems to me that's pretty much  
going to be the opposite with Athena 10 - the vast majority of users  
will be using the -standard or -login flavors.   This may require  
drastically rethinking how we currently support Athena and what we  
currently support, but that's probably a conversation to have offline  
with a small subset of this group.

-Jon



home help back first fref pref prev next nref lref last post