IntroductionEn

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Context and goals

The goal of the LLL project is to supply a Linux solution to Luxembourgish Highschools, and other communities.

Following type of features are available:

• Local services: file storage, printing
• Full-featured internet access
• Ease of Administration

Features

• Windows file and print serving
• E-mail
  • Local e-mail access via sendmail and IMAP
  • Remote e-mail access from any web-browser via Horde/IMP
• Web browsing and hosting
• Firewall
• Pdf Printer
• Client PC installation: UDPcast
• Administration via webmin

Samba file serving

• Users and passwords managed by Linux server
• Files directly accessible from Windows clients
• Fine-grained permissions
• Available Windows drives
  • Specific to student: P:, S:, and W:
  • Common to a class: G:, T:
  • Public (readable for everybody)
  • "Project"-related drives

Samba print serving

• Printers accessible from Linux and Windows clients
• Supported connectivity:
  • HP Jet-direct (network printer)
  • Directly attached to server
  • Attached to windows workstations
  • Print job accounting

E-mail

• Friendly email: <code>First.Last@school.lu</code>
• E-mail accessible from within via IMAP (Mozilla)
• E-mail accessible from outside via IMP/Horde webmail (usable from any computer with a Web browser)
• Spam filtering

Squid web cache

• Accelerated browsing experience
• Possibility of blocking sites with questionable content
• Accountability: log of URLs visited

Web hosting

• Public school web page
• Internal school web page
• Personal web page for each student

Firewall

• Protects the school network against attacks from outside
• Protects the outside world against attacks by the students
• Enforces usage of web proxy
• Allows flexible allocation of IP addresses using Network Address Translation (for FTP, IRC, ...)

Pdf Printer

• Convert Office documents to PDF format by printing them to a special network printer
• There is also an email-based converter: <code>office2pdf@office2pdf.lll.lu</code>

Udpcast

• "Cloning" of client PCs
  • For "first time" installation
  • For "repairing" PCs after students had their fun with them
• Takes advantage of Ethernet multicast to send to multiple destinations at once simultaneously
• Example: partition of 5 GB can be copied to a whole classroom in under 8 minutes
• Easy-to-use menu driven boot disk
• Available at http://www.UDPcast.linux.lu

Webmin administration interface

• User management
• Firewall administration
• Fine-grained access control (access to network services, shared folders and exam users)

Client side Linux

• Client-side Linux at the LGL, Sainte Sophie and Wilwerwiltz
• "Programming" classes, networked gamed
• Access to server via NIS and NFS

Key figures

• 4 schools
• 4000 students
  • 1000 at LTNB (since 1994)
  • 1250 at LGL (since spring 1999)
  • 1250 at LTML (since fall 1999)
  • 625 at EPND (since spring 2001)
  • Internetstuff Wilwerwiltz (since summer 2003)
  • 300 at Primary school Troisvierges (in progress)
  • Transfair/Minka (since April 2004)
  • 350 at Primary school Parc Hosingen (since June 2004)