Linux concepts
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Linux basic concepts

Linux basic concepts

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    Linux concepts Linux concepts Presentation Transcript

    • Linux Basics : Part 1
    • In Supercomputers Rank Performance Name Processors OS Vendor (Tera FLOPS) 1 1759 - 2331 Jaguar 224162 Opteron Linux Cray 2 1271 - 2884 Nebulae 55680 Xeon + 64960 Tesla Linux Dawning 3 1042 - 1375 Roadrunner 122400 Cell/Opteron Linux IBM 4 832 - 1029 Kraken 98928 Opteron Linux Cray 5 826 - 1003 JUGENE 294912 Power Linux IBM 6 773 - 973 Pleiades 56320 Xeon Linux SGI 7 563 - 1206 Tianhe - I 71680 Xeon Linux NUDT 8 478 - 596 Blue Gene - L 212992 Power Linux IBM 9 459 - 557 Intrepid 163840 Power Linux IBM 10 433 - 497 Red Sky 41616 Xeon Linux Sun (Oracle)As on November 2009, 89.2 % of worlds top 500 Supercomputers runs on Linux Top 10 positions of the 35th TOP500 List released on May 31, 2010 during ISC10 in Hamburg, Germany
    • For High Performance and ScalabilityOrganization Stats Platform google  1 Billion Search Requests Everyday Linux, MapReduce,  20 PB UGC Added Everyday Python, Java, C++  More than 1 Million Servers  1 PB Search Index (4000 Machines, 48000 Disks – Sorts in 6H 2M) CERN  15 PB of New Data Every Year Linux, MapReduce,  80,000+ Computers CouchDB, MySQL,  Withstand 1 PB Data Per Sec SQLight, Squid facebook  600 Million Users Linux, Apache, Cassandra,  150 Million Mobile Users MySQL, PHP, Memcached twitter  65 Million Users Linux, MySQL, Ruby,  750 Tweets Per Second Erlang, Scala, Memcached Youtube  1 Billion Users Per Day Linux, Apache, Lighttpd,  11574 Users Per Sec MySQL, Python Flickr  5 Billion Images Linux, Apache, MySQL,  2 Billion+ Users Java, Perl Memcached
    • Linux Installation● Hardware Compatibility● Disk Space Requirements● Installation methods – Local / Remote● Installation modes● Dual Boot
    • System Partitioning● Automatic Partitioning● Manual Partitioning● Adding / Deleting / Editing Existing Partitions● Recommended Partition Scheme● Partition Tables - MSDOS / GPT
    • FHSThe File-system HierarchyStandard Enables:● Software to predict the location of installed files and directories, and● Users to predict the location of installed files and directories.
    • Example of an FHS - compliant system Shareable UnshareableStatic /usr /etc /opt /bootVariable /var/mails /var/run /var/spool/new /var/lock
    • Linux FHS
    • Basic Configuration● Browser Plug-ins ● Java ● Flash● Audio● Video● Printer
    • Installing Applications● Installation using yum● Configuring repositories● Downloading packages● Identify the installed packages● Yum – tips and tricks● Installation from source
    • Installing Drivers● Understanding Linux Drivers● Identify the hardware● Install the OSS / Propitiatory driver (Display, NIC)
    • Network Configuration● Configure LAN – Static / Dynamic● Configure Wireless / VPN / DSL / Mobile BB● Configure Modem● Troubleshoot N/W related issues
    • Questions?Ask at www.iwillstudy.com/forum