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Deploying Linux Evolutionary, Not Revolutionary

LinuxFest Northwest Bellingham, WA April 26th, 2003 Eric Harrison Supervisor of Network Services Multnomah Education Service District. Deploying Linux Evolutionary, Not Revolutionary. 1996: In The Beginning. There was a lone penguin

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Deploying Linux Evolutionary, Not Revolutionary

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  1. LinuxFest Northwest Bellingham, WA April 26th, 2003 Eric Harrison Supervisor of Network Services Multnomah Education Service District Deploying LinuxEvolutionary, Not Revolutionary

  2. 1996: In The Beginning.... • There was a lone penguin • Riverdale School District played around with Samba file services Legend Proprietary Server: Open Source Server:

  3. 1997: K12Linux Project • Riverdale School District volunteers its facilities to host the Portland Linux User's Group's install clinics • In turn, Riverdale gets a room full of experts once a month • K12Linux project is formed

  4. 1998: Testing The Waters • Proxy Servers placed in several of the large schools to conserve bandwidth • FTP server added

  5. Early 1999: The Ball Starts Rolling • New services added: Web and LDAP • The first conversions occur...

  6. Early 1999: The Ball Starts Rolling • New services added: Web and LDAP • The first conversions occur... • DNS server: Linux was quick to fix the BIND bug

  7. Early 1999: The Ball Starts Rolling • New services added: Web and LDAP • The first conversions occur... • DNS server: Linux was quick to fix the BIND bug • Proxies centralized

  8. Early 1999: The Ball Starts Rolling • New services added: Web and LDAP • The first conversions occur... • DNS server: Linux was quick to fix the BIND bug • Proxies centralized • Centennial Mail Server

  9. Bind BugOpen Source vs Proprietary Software • MESD used HP-UX DNS servers, running Bind 4 • The big Bind bug hit and HP dragged its feet putting out a patch • We got tired of waiting, knew that there was an exploit in the wild • The Linux version of Bind had been patched immediately • Tested Linux and found it to be much faster

  10. Centralized Proxies • Having proxies in each school ended up being more trouble than it was worth • Pulled proxies out of the schools and centralized them • Used Layer-4 switch to make the proxying transparent, load-balanced, fail-over protected • Huge success

  11. Centennial Mail Server • District's sysadmin fed up with their proprietary mail server • Sent out an email saying that the district would be without email until further notice • Pulled the plug • MESD was evaluating replacing its mail server, asked Centennial if they wanted to be guinea pigs. • Had them up and running in a couple of hours • Been running fine ever since

  12. Late 1999: Road to Domination • MESD LAN taken by storm: • File/Print • Email • DHCP

  13. 2000: First Tries at the Desktop • Riverdale School District deploys a Linux Terminal Server (LTSP) • Redundant DNS and mail relay servers added • More Linux servers in the schools

  14. 2001: The Filter Disaster • Dismal, painful, expensive disaster with proprietary web filter • Linux saves the day! • More redundancy

  15. 2002: Terminal Services Takes Off • LTSP labs spring up all over the place • Budget crunches, old hardware • MS Audits help • More file/web/email servers in the schools

  16. Overall Goals and Objectives • Reduce Costs • Increase Reliability • Decrease management headaches • Encourage learning!!!! • Fame, glory, tons of cash, stock options, adequate budgets, and all the other benefits of working in Education (yeah, right!)

  17. What Has Worked • Patience! • We've been working non-stop for the last seven years to get were we are. Schools move very, very slowly • Transparent implementations • Start by putting Linux were it 1) solves a problem and 2) doesn't require additional work from anyone else • Keep on asking how much things cost! • And say “Wow! That's expensive! What does it offer that my free solution does not?”

  18. Bumps in the Road • Anything that requires special configuration of workstations will fail. • Lack of technical talent, at all levels. • Path of least resistance. • General unwillingness to learn. • Legacy proprietary systems are tough to dispose of. • Differences in ideology.

  19. General Approach to Technology • Modular designs: let others pick and choose what they want to use • Platform agnostic, avoid the PC/Mac wars • Standard protocols, interoperability is mandatory • Distributed management • Always have an exit plan, technology changes quickly

  20. Projects • Linux in Schools Project: • http://k12linux.org • K12LTSP, the K12 Linux Terminal Server Project: • http://k12ltsp.org • SquidGuard web filter: • http://squidguard.mesd.k12.or.us • K12 Open Source discussion board: • http://www.k12os.org

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