User:Holt/XS Community Edition/0.3/Project Specifications
School Server - Community Edition 0.3 Project Specifications
The school server is very similar in concept to a standard home wireless router. In everyday usage it provides various services which extend capabilities of the connected laptops while being totally transparent to the user. These services can include:
- Network connection – various services similar to what you would find in a home router.
- Presence server – Augments sugar's native collaboration functionality.
 Reference User
The XS-CE has two different types of reference user:
- Skilled sysadmins running micro-deployments
- Mid-sized deployment with limited onsite sysadmins
School servers can be run on an XO.
XSCE v0.3 will run on all 3 types of XO laptops:
- XO 1.5
- XO 1.75
- XO 4
In common usage, the XO may be augmented by two off the shelf USB devices and a local access point:
- Network connector – Allow the server to offer internet access to connected XO's via a wired access point.
- NEW IN 0.3 -- a second USB internet dongles for wired connection to a wide area network or internet service provider.
A RPM combined with tested installation instructions necessary to convert a standard XO-1.5, XO-1.75, XO-4 or Fedora-compatible x86 computer into a School Server.
 Base OS
NEW IN 0.3 -- OLPC-OS 13.1.0
 Modular design
One of the key design criteria of successful community-based projects is modularity.
NEW IN 0.3 -- 'plug in services'
 Core Server
The core server will contain five services which can be extended via extended services.
Service: Network setup
Service: Dynamic Host Configuration Protocol
Purpose: Schoolserver and clients need to be on same subnet.
Service: Iptables -- Network Address Translation (NAT)
Purpose: Permits all XO’s to access the internet.
Service: Internet domain name server
Service: Backup of student work and restore
Purpose: collaboration > 15 clients needs to work.
 Extended Services
Service: Web server
Purpose: Building block for many other extended services
Service: proxy server and web cache
Purpose: bandwidth, web-filtering, web-monitoring
Purpose: OLPC-update is necessary to update the kernel of XO
Service: Activity update
Purpose: Enables teachers to easily distribute new or updated activities to their students
Provider: activity updater
Service: Virtual Private Network (VPN)
Purpose: Creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities
Purpose: classroom and courseware management
Provider: Moodle 1.9.3 and Postgresql