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LTSP For Grown-Ups
 

LTSP For Grown-Ups

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Paula Graham @ 2009 Lasa Circuit Rider Conference ...

Paula Graham @ 2009 Lasa Circuit Rider Conference
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What is Ubuntu LTSP?

Ubuntu is a humanfriendly
desktop/server OS
LTSP stands for 'Linux Terminal Server Project'
LTSP lets multiple computers use the same server
These can connect locally or even over the
internet
The server does almost all the work
Widely used for education or internet café suites
Increasingly being used by SMOs for offices

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    LTSP For Grown-Ups LTSP For Grown-Ups Presentation Transcript

    • LTSP For Grown-Ups www.fossbox.org.uk  paula@fossbox.org.uk 
    • What is Ubuntu LTSP? Ubuntu is a human­friendly desktop/server OS LTSP stands for 'Linux Terminal Server Project' LTSP lets multiple computers use the same server These can connect locally or even over the  internet The server does almost all the work Widely used for education or internet café suites Increasingly being used by SMOs for offices  www.fossbox.org.uk  paula@fossbox.org.uk 
    • The Pros Re­use old equipment Low set­up and running costs Easy installation Low maintenance and easy backup Environmentally friendly Compatible with Windows on mixed networks Fast and secure remote desktop access When old re­used boxes fail, slot in another one www.fossbox.org.uk  paula@fossbox.org.uk 
    • The Cons If the server goes down your clients can't boot VCOs may have legacy issues which make  migration to Ubuntu difficult Ubuntu LTSP works well in mixed networks but  requires some skill to configure www.fossbox.org.uk  paula@fossbox.org.uk 
    • Some examples of local problem­solving Educational suite Fossbox – workstations for volunteers Mixed network for VCOs www.fossbox.org.uk  paula@fossbox.org.uk 
    • LTSP for Education   Community training suite   Casual users  Updating 15 clients exceeds bandwidth quota  Users want their own profiles LTSP can:  Manage updates centrally  Provide 'roaming' profiles for the students  Reduce costs and maintenance www.fossbox.org.uk  paula@fossbox.org.uk 
    • What to do with a bunch of old P3s?  People kindly pop in  AMD 3.6 GHz single  old P3s for us to re­use core, 1 GB RAM: £130 No currently supported  £30 on bits and bobs Windows OS will run Ubuntu 8.04 LTSP Underpowered for fully  featured Linux distros Runs up to 10 old P3s Noisy and prone to  Full Ubuntu desktop failure Fast and silent www.fossbox.org.uk  paula@fossbox.org.uk 
    • Rapid expansion, lack of space –  Social Enterprise Lack of space and  Ubuntu 8.04 LTSP server part­time working –  Mixed network hot­desking Rsync backups on  Working from home reallocated hardware Allows users to 'roam' Legacy software Remote sessions Unreliable re­used  New server, 2 new clients  hardware and re­use of remaining  Limited resources hardware Total cost: £1,000 www.fossbox.org.uk  paula@fossbox.org.uk 
    • What you need Server minimum spec:  500 MB RAM for Ubuntu 8.04 + 50 MB RAM per client  2 NICs (preferably gigabit) Client minimum spec:  Pretty much anything – P2 and P3s run very well  A PXE NIC (most NICs can netboot)   Ubuntu alternate installation disk Common or garden network switch and Cat 5  cabling www.fossbox.org.uk  paula@fossbox.org.uk 
    • Connect it all up: Internet eth1 eth0 www.fossbox.org.uk  paula@fossbox.org.uk 
    • Install it Current LTS is 8.04 (Hardy) Download & burn alternate CD  Boot server from CD Wait for the welcome screen Hit F4, choose LTSP installation Choose NIC connected to the  router/internet as 'primary  network interface' www.fossbox.org.uk  paula@fossbox.org.uk 
    • Handling mixed networks Netboot clients (F12 or  edit BIOS) Windows and Mac  clients can connect  via FreeNX Remote sessions via  FreeNX Access home directories over LAN with SAMBA Backup LTSP and legacy Windows PCs with rsync www.fossbox.org.uk  paula@fossbox.org.uk 
    • Who uses it?  Thousands of schools, colleges and internet cafés  all over the world NGOs such as ICLEI (Local Governments for  Sustainability) http://www.iclei.org/  Commercial and professional organisations Find more success stories on the LTSP Wiki:  http://tinyurl.com/4fvgp5   www.fossbox.org.uk  paula@fossbox.org.uk 
    • Help and resources More about Ubuntu: www.ubuntu.com  Ubuntu LTSP how­to: http://tinyurl.com/58w4bc  Download Ubuntu 8.04 x86 alternate installation  CD: http://tinyurl.com/ouv878  Connecting Ubuntu clients remotely with FreeNX:  http://tinyurl.com/ogx6yt (NB you need the  client .deb from the NoMachine site) Instructions for installing FreeNX and connecting  Windows clients: http://tinyurl.com/43oxra  www.fossbox.org.uk  paula@fossbox.org.uk