XS Community Edition/0.4/Project Specifications
School Server - Community Edition 0.4 Project Specifications
A school server provides communication, networking, content, and maintenance to a school and or classroom. In everyday usage the school server provides services which extend capabilities of the connected laptops while being transparent to the user. These services include:
- Classroom connectivity – Similar to what you would find in an advanced home router.
- Internet gateway – If available, an internet connection is made available to laptops.
- Content - Tools are available for deployments and teachers to make instructional media available to their schools and classrooms.
- Maintenance - Tools are available to keep laptop updated and running smoothly.
The XS-CE 0.4 has three types of reference user:
- Highly motivated volunteers willing to risk the bleeding edge.
- Skilled sysadmins running micro-deployments.
- Experienced mid-sized deployment with limited onsite sysadmins.
One of the key design criteria of successful community-based projects is modularity with 'plug in' services
School servers can be either an XO or standard x86 and arm based hardware.
- Network connector – Allow the server to offer internet access to connected XO's.
- 2 USB ethernet dongles.
- NEW IN 0.4 -- External USB hard drive – Allows the server to provide additional storage capabilities. Experimental: USB powered hard drives require a powered USB hub between the XO and the drive.
Please note that XO-1s and XO-1.5 'lite' machines may require an internal SD card to meet XS storage requirements.
For greater flexibility some schools will want to use standard hardware. XSCE is currently supporting:
Other hardware may work, but is not tested as part of the release process. Please help us by running the tests at testing on your hardware of choice to verify it works.
XSCE will run on either:
- OLPC-OS 13.2.0
- Fedora 18
One of the most pressing logistical challenges for deployments is travel time between schools. If can take days, and weeks in some cases, a technical support person with the needed skills to arrive 'on-site' to fix an issue. XXCE provides two options for remote administration:
- OpenVPN -- Any individual school server with internet connectivity can be accessed remotely by support staff.
FUTURE: Target users are often not familiar with Linux system administration. Initial setup or fixing a problem with their server is not a good time to introduce system administration skill.
A RPM combined with tested installation instructions necessary to convert a standard XO or Fedora-compatible computer into a School Server.
- NEW IN 0.4 -- A downloadable USB flash drive image, combined with tested installation instructions, which permit deployment staff to install XSCE software without an internet connection. :NOTE: is this feasible in 0.4
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
NEW IN 0.4 -- System monitoring
Purpose: Ensures that all offered services are running as expected
Purpose: collaboration > 15 clients needs to work.
Service: Web server
Purpose: Building block for many other extended services
Service: proxy server and web cache
Purpose: bandwidth, web-filtering, web-monitoring
Purpose: Provides Course Management System
Service: Activity update
Purpose: Enables teachers to easily distribute new or updated activities to their students
Provider: activity updater
Purpose: OLPC-update is necessary to update the kernel of XO
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
Service: Backup student work
Purpose: To back up student work
NEW IN 0.4 -- Service: Content filtering (TimM??)
Purpose: age-appropriate surfing, legal compliance, religious risks
Provider: dansguardian and opendns
NEW IN 0.4 -- Service: Statistics Collection
Purpose: Collects users statics for academic research
Provider: pilot monitoring system
NEW IN 0.4 -- Service: Book server (SameerV, AlexK, GeorgeH)
Purpose: Locally currated selection of eBooks?
NEW IN 0.4 -- Service: Internet in Box
Purpose: Provide offline content
NEW IN 0.4 -- Service: Customization Stick
Purpose: Permit small deployments to modify stock images (add or subtract activities)
Provider: Tiny Core Linux
Future Features and Objectives
- Browser-based GUI Config - as primary configuration tool? To configure install setup and core services?
- ejabberd roster admin
- Consideration of other devices (Android, Kindle, iPods, iPads)
- Content curation (beyond dumping stuff into Apache directories)
Please consider adding features and objectives to this list if you feel they should be included in a future release. If you consider the feature important and are willing and able to do the necessary work please sign your name to take responsibility for that service.
Service: (GeorgeH, Gerald, AnnaS)
Purpose: local distribution/replication of Sugar Activities etc
Service: Restore student work
Purpose: To restore student work
Service: 1-N WebDEV(JerryV, GeorgeH)
Purpose: Journal submissions to teacher, academic record (homework etc)