XS-XO Interactions
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Overview of interactions between the laptops and their servers
The following is a high level view of how and where the XO and XS talk to each other.
| Service | Laptop | Server | Protocol | Notes |
|---|---|---|---|---|
| School Identity Manager | sugar: src/hardware/schoolserver.py | idmgr: idmgr/server.py | XMLRPC, port 8080 | Server expects serial number, nickname, uuid, SSH pubkey; replies with success, backupurl, backuppath, jabberserver. |
| Ds-backup | users/martin/ds-backup: client/* | users/martin/ds-backup: server/* | HTTP query, followed by rsync over ssh. | Client and server are in the same repository. |
| Activation/ XS-activation | susers/cscott/olpcrd-rootskel: rc-olpc/activate.py | users/dbagnall/xs-activation: xs-activation-server | Socket on port 191. | Used for initial activation. |
| XS-rsync | olpc-update | users/martin/xs-rsync.git | rsync | Publishes XO software updates and potentially other stuff. |
| Presence Service | Telepathy Gabble | eJabberd and projects/gadget | jabber | |
| XO updater/ Software update | users/cscott/sugar-update-control | Apache and XS-activity-server | http | Mostly bypasses XS for now, going straight to e.g. wiki.laptop.org. |
| Web content | Browse | Apache, Moodle, etc | http | |
| Mundane services | ||||
| DNS, DHCP, RADVD | Bind, DHCPd | Bind is unloved and may be replaced. | ||
| NTP | ntp | |||
| Open but unused(?) XS ports | ||||
| Erlang Port Mapper Daemon | epmd | TCP port 4369 | This seems to be started with ejabberd. | |