[IAEP] Live CD collaboration problem

[Morgan Collett]

On Mon, Aug 25, 2008 at 06:34, Joel Stanley
<joel.stanley at adelaide.edu.au> wrote:
> Hello All,
>
> Bill Kerr <billkerr at gmail.com> wrote:
>> However, Sugar's collaboration software layer is not being detected
>> Any suggestions on how to fix this problem?
>
> With some time Bill said he might be able to organise a local school
> server, or set things up so that the students have access to external
> jabber servers, but I thought that using the adhoc features of Sugar's
> collaboration would be an easier solution.

Yes, we should be able to get that working.

> My understanding of the sugar presence stuff is limited, so forgive me
> if I'm talking nonsense.  The machines receive an IP from the school
> DHCP server.  We want to force the presence service to use salut
> instead of looking for the unreachable jabber server.  Can we hack
> this into presenceservice.py[1]?  I also saw the 169.254 hardcoded
> into linklocal_plugin.py[2], is this relevant?

Link local presence should "just work", but I've never used the LiveCD images.

Presence Service will automatically start salut / linklocal on
startup, while it starts looking for a Jabber server. If it fails to
connect to a Jabber server for whatever reason (server non-existant,
down or unreachable) it will remain on salut.

(The only exception to this is if it has an IP address on the msh0
interface (XO mesh) which is not 169.254.x.x, then it is assumed that
we are on a mesh network with a school server - then it disables salut
for 2 minutes to try and avoid saturating the mesh network with salut
traffic while looking for the school server's jabber server.)

Salut should automatically show presence for anyone detected on the
same network. It uses avahi, so you should be able to see it at work
if you run avahi-browse -a -t - Sugar machines will show up with
"iChat Presence" with a username consisting of hex digits.

To confirm that salut is running, you can also go to Terminal or the
console and type "ps ax |grep telepathy" - you should see
telepathy-salut listed.

To enable a log file in presenceservice.log, see if you have a
.xsession or .xsession-example in /home/olpc. Copy .xsession-example
to .xsession if necessary, and uncomment the lines with
PRESENCESERVICE_DEBUG=1 and SUGAR_LOGGER_LEVEL=debug - then restart X
(or the machine).

If it's still not working, you should at least get a reasonable log
file which we can take a look at.

Regards
Morgan