Recycling Old Computers with LTSP <ul><li>$ whoami </li></ul><ul><li>VU2SWX  aka Sunil TT </li></ul><ul><li>College of Eng...
<ul><li>Overview </li></ul><ul><li>Brief introduction to LTSP </li></ul><ul><li>Requirements for running LTSP </li></ul><u...
What is LTSP? <ul><li>Linux Terminal Server Project </li></ul><ul><li>Allows “thin” clients to connect to a </li></ul><ul>...
How it works <ul><li>A “thin” client performs a Prebootxecution Environment (PXE) boot and retrieves an IP from the LTSP  ...
How it works <ul><li>A small footprint Linux kernel is sent </li></ul><ul><li>to the thin client computer via TFTP. </li><...
How College of Engg. Attingal LAN Looks like
What we have as server <ul><li>Server </li></ul><ul><li>CPU should be powerful enough to run multiple X sessions. </li></u...
Our clients  <ul><li>Client </li></ul><ul><li>Minimum </li></ul><ul><li>Pentium II with 48 MB RAM and a 2M </li></ul><ul><...
Software <ul><li>A Linux distribution with or without </li></ul><ul><li>LTSP included. </li></ul><ul><li>Most distros exce...
Software <ul><li>Four services running on the LTSP </li></ul><ul><li>server: </li></ul><ul><li>DHCP for IP address leases ...
<ul><li>Networking Requirements </li></ul><ul><li>Avoid </li></ul><ul><li>Hubs </li></ul><ul><li>10-BaseT cards </li></ul>...
How to make a quick install <ul><li>Grab ubuntu 9.10 alternate install CD </li></ul><ul><li>Boot it up  </li></ul><ul><li>...
How to boot clients <ul><li>Enable network boot if the machine support Pxe </li></ul><ul><li>If it is an older machine , g...
Advantages  Disadvantages <ul><li>Diskless clients </li></ul><ul><li>Highly Centralized patches and firewalling </li></ul>...
Services you can provide Internet access Office Automation OpenOffice Graphics GIMP Inkscape Scribus Printing via network ...
Links <ul><li>http:www.ltsp.org </li></ul><ul><li>http://en.wikipedia.org/wiki/LTSP </li></ul><ul><li>http:// www.edubuntu...
Questions ? <ul><li>VU2SWX  </li></ul><ul><li>College of Engineering  </li></ul><ul><ul><li>Attingal. Trivandrum  </li></u...
<ul><li>Thank you </li></ul>
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Ltsp

  1. 1. Recycling Old Computers with LTSP <ul><li>$ whoami </li></ul><ul><li>VU2SWX aka Sunil TT </li></ul><ul><li>College of Engineering </li></ul><ul><ul><li>Attingal. Trivandrum </li></ul></ul><ul><ul><li>$ blogs </li></ul></ul><ul><ul><li> htttp://brainstorms.in </li></ul></ul><ul><ul><li>http://unixlab.blogspot.com </li></ul></ul><ul><ul><ul><li>Catch me on Amateur Radio as VU2SWX </li></ul></ul></ul>
  2. 2. <ul><li>Overview </li></ul><ul><li>Brief introduction to LTSP </li></ul><ul><li>Requirements for running LTSP </li></ul><ul><li>Advantages and disadvantages </li></ul><ul><li>links </li></ul>
  3. 3. What is LTSP? <ul><li>Linux Terminal Server Project </li></ul><ul><li>Allows “thin” clients to connect to a </li></ul><ul><li>Linux Terminal Server. </li></ul><ul><li>All programs run on the server </li></ul><ul><li>Clients run a thin Linux base with network </li></ul><ul><li>and X session capabilities. </li></ul><ul><li>LTSP allows for a single point of </li></ul><ul><li>configuration and control </li></ul><ul><li>Great for lab environments </li></ul>
  4. 4. How it works <ul><li>A “thin” client performs a Prebootxecution Environment (PXE) boot and retrieves an IP from the LTSP server via DHCP. </li></ul><ul><li>dhcp server runs on the private network interface on the LTSP server </li></ul>
  5. 5. How it works <ul><li>A small footprint Linux kernel is sent </li></ul><ul><li>to the thin client computer via TFTP. </li></ul><ul><li>The client loads the Linux image and </li></ul><ul><li>starts the X window system via </li></ul><ul><li>secure shell (ssh) </li></ul>
  6. 6. How College of Engg. Attingal LAN Looks like
  7. 7. What we have as server <ul><li>Server </li></ul><ul><li>CPU should be powerful enough to run multiple X sessions. </li></ul><ul><li>We have </li></ul><ul><li>Intel Xeon processor. 8 GB memory </li></ul><ul><li>160GB *3 sata hdd ( Raid) </li></ul><ul><li>Running ubuntu 8.10 </li></ul>
  8. 8. Our clients <ul><li>Client </li></ul><ul><li>Minimum </li></ul><ul><li>Pentium II with 48 MB RAM and a 2M </li></ul><ul><li>video card. </li></ul><ul><li>Recommended Pentium II and above with 64MB RAM and </li></ul><ul><li>4MB display card. </li></ul><ul><li>Identical hardware preferred </li></ul>
  9. 9. Software <ul><li>A Linux distribution with or without </li></ul><ul><li>LTSP included. </li></ul><ul><li>Most distros except Ubuntu and Debian do not have LTSP 5 by default. </li></ul>
  10. 10. Software <ul><li>Four services running on the LTSP </li></ul><ul><li>server: </li></ul><ul><li>DHCP for IP address leases </li></ul><ul><li>TFTP for initial netboot kernel </li></ul><ul><li>NFS for forwarding filesystems </li></ul><ul><li>SSH for all communication on the LAN </li></ul>
  11. 11. <ul><li>Networking Requirements </li></ul><ul><li>Avoid </li></ul><ul><li>Hubs </li></ul><ul><li>10-BaseT cards </li></ul><ul><li>Preferred: 100 Mbps switch </li></ul><ul><li>100-BaseT cards </li></ul><ul><li>Ideal: </li></ul><ul><li>Gigabit switch. </li></ul><ul><li>100 Mbps switch with 1 Gbps uplink to the </li></ul><ul><li>LTSP server. </li></ul>
  12. 12. How to make a quick install <ul><li>Grab ubuntu 9.10 alternate install CD </li></ul><ul><li>Boot it up </li></ul><ul><li>Press F4 </li></ul><ul><li>Select LTSP server install </li></ul><ul><li>Set up an IP address manually (Say 192.168.0.1) </li></ul><ul><li>Complete the install </li></ul><ul><li>Boot the server </li></ul>
  13. 13. How to boot clients <ul><li>Enable network boot if the machine support Pxe </li></ul><ul><li>If it is an older machine , get etherboot rom image and burn it to an EPROM </li></ul><ul><li>Or use a CD or floppy to start the network booting process. </li></ul>
  14. 14. Advantages Disadvantages <ul><li>Diskless clients </li></ul><ul><li>Highly Centralized patches and firewalling </li></ul><ul><li>Cost effective </li></ul><ul><li>no licensing fees </li></ul><ul><li>Customized profiles </li></ul><ul><li>LDAP auth </li></ul><ul><li>Change lab footprint asneeds grow </li></ul><ul><li>Invest in powerfulserver </li></ul><ul><li>Need a fast network </li></ul><ul><li>Documentation is weak </li></ul><ul><li>Time sensitive apps may not work well, </li></ul><ul><li>especially multimedia </li></ul>
  15. 15. Services you can provide Internet access Office Automation OpenOffice Graphics GIMP Inkscape Scribus Printing via network Any thing you can run on a linux desktop
  16. 16. Links <ul><li>http:www.ltsp.org </li></ul><ul><li>http://en.wikipedia.org/wiki/LTSP </li></ul><ul><li>http:// www.edubuntu.org </li></ul><ul><li>http://www.etherboot.org/ </li></ul>
  17. 17. Questions ? <ul><li>VU2SWX </li></ul><ul><li>College of Engineering </li></ul><ul><ul><li>Attingal. Trivandrum </li></ul></ul><ul><ul><li>Blogs htttp://brainstorms.in </li></ul></ul><ul><ul><li>http://unixlab.blogspot.com </li></ul></ul><ul><ul><li>Twitter @vu2swx </li></ul></ul><ul><ul><li>Email [email_address] </li></ul></ul><ul><ul><li>Radio vu2swx </li></ul></ul>
  18. 18. <ul><li>Thank you </li></ul>

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