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Ltsp
 

Ltsp

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    Ltsp Ltsp Presentation Transcript

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