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Module 1: Technical Summary of Linux

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Free Software and GNU License. Technical differences between Windows and Linux ... Some Distributions Red Hat, SuSE, Mandrake, and Caldera. ... – PowerPoint PPT presentation

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Title: Module 1: Technical Summary of Linux


1
Module 1 Technical Summary of Linux
  • Including
  • Linux Distributions
  • Free Software and GNU License
  • Technical differences between Windows and Linux

2
Linux Distributions
  • Distributions an entire package of Linux,
    including tools, editors, GUIs, and so forth.
  • Some Distributions Red Hat, SuSE, Mandrake, and
    Caldera.
  • Most of tools are not written by the companies
    who sell the Linux packages.
  • Linux itself is the core of the OS - kernel

3
Free software and GNU license
  • Free software
  • Free of charge
  • Free of source code
  • GNU license
  • GNU GNUs Not Unix
  • GNU General Public License (GPL)
  • The full source code must be released
  • The programmers are not liable for the software

4
Technical Differences between Linux and Windows
  • Users
  • GUI and the kernel
  • Network Disks
  • Configuration files
  • Domains
  • Disk file systems
  • Server roles

5
The Users
  • Single Users One computer, one desk, one user
  • Multi Users Many people can work parallel
  • Network Users Users can use the services over
    network

6
The GUI and the kernel
  • Linux the user interface and the operating
    system -gt separate
  • Windows the GUI and the core OS are integrated

7
The Network Disks
  • Linux using the Network File System (NFS) that
    supports mounting on other systems
  • Windows
  • using Share (by mounting a share, also called
    map)
  • Using Distributed File System (Dfs) for the
    server

8
The configuration files
  • Linux using text file
  • Easy to use
  • But has no standard
  • Windows using registry database (before using
    .ini files)

9
Domains
  • Linux using Network Information Service (NIS),
    a simple text file.
  • It doesnt perform authentication the way a DC
    does.
  • Windows using Active Directory (AD)
  • AD was designed to be much more than what NIS was
    designed for.

10
Linux Disk file system
  • File types
  • ext3, swap, also FAT, FAT32, NTFS
  • Minimum partitions
  • two One for holding all of the files
  • One for swap space

11
Directory Structure
  • Begin with root directory /
  • /usr - for all program files (Windows - ?)
  • /home - user home directory (Windows-?)
  • /var - the final destination for log files
  • /tmp - for placing temporary files
  • swap - for storing virtual memory file
    (Windows - ?)

12
Linuxs Partitions
  • Each partition will show with a device, such
    /dev/hdXY, dev/sdXY
  • hd hard disk
  • sd SCSI disk
  • X disk number for the system
  • Y partition number for the disk

13
The Server Roles
  • Mail server,
  • Web server,
  • FTP server,
  • File server,
  • Print server,
  • DHCP server,
  • DNS server,
  • Database server,
  • News server,
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