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Linux: An Unbeaten Empire
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Linux: An Unbeaten Empire


This presentation is completely designed for Industrial Training Presentation only that is needed by the Student in order to submit in the colleges. It contain Linux Introduction, Servers and …

This presentation is completely designed for Industrial Training Presentation only that is needed by the Student in order to submit in the colleges. It contain Linux Introduction, Servers and Services, File System and many more about Linux

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  • 1. A Report on
    Redhat Enterprise Linux Server
    Yogesh Kr. Sharma
    (RHCE) CS- Final Year
    Network Nuts
    Premier Partner
    Global Exam Center
    Redhat Inc, USA
  • 2. Unix
    Unix is a multi-user, multi-tasking operating system.
    Many users logged into a system simultaneously, each running many programs.
    It's the Console based Operating system.
  • 3. History of Linux/Unix
    First Version was created in Bell Labs in 1969.
    Some of the Bell Labs programmers who had worked on this project, Ken Thompson, Dennis Ritchie, Rudd Canaday, and Doug McIlroy
    It was given the name UNIX by Brian Kernighan.
    00:00:00 Hours, Jan 1, 1970 is time zero for UNIX. It is also called as epoch.
    1973 Unix is re-written mostly in C, a new language developed by Dennis Ritchie.
    Being written in this high-level language greatly decreased the effort needed to port it to new machines.
  • 4. History of Linux
    Linux is a free Unix-type operating system originally created by LinusTorvalds with the assistance of developers around the world by using UNIX Source Code.
    It originated in 1991 as a personal project of LinusTorvalds, a Finnish graduate student.
    The Kernel version 1.0 was released in 1994 and today the most recent stable version is 2.6.9
    Developed under the GNU General Public Licence, the source code for Linux is freely available to everyone.
    Various Linux Distribution like Redhat, Ubuntu, Mandrake, HP-AIX. (Redhat Known to be Market Leader)
  • 5. UNIX Structure
  • 6. Linux File System Table
  • 7. File System
    The Unix file system looks like an inverted tree structure.
    You start with the root directory, denoted by /, at the top and work down through sub-directories underneath it.
    Each node is either a file or a directory of files, where the latter can contain other files and directories.
    The full path name starts with the root, /, and follows the branches of the file system, each separated by /, until you reach the desired file, e.g.:
  • 8. User Group and Permission
    Apart from all the users, there is a special user called the root which has permission to access any file and directory.
    There are three permissions for any file, directory or application program.
    r — Indicates that a given category of user can read a file.
    w — Indicates that a given category of user can write to a file.
    x — Indicates that a given category of user can execute the file.
  • 9. Basic Commands for Browsing the Linux
    Editors in Linux
    Eg: vi /etc/passwd
    Eg: vim /etc/passwd
    Eg: nano /etc/passwd
    Eg: gedit /etc/passwd
    pwd (Present Working Directory)
    cd (Change Directory)
    ls (List Directory content)
    cp (Copy File)
    mv (Rename and Move)
    rm (Remove)
    mkdir (Make Empty Directory)
    touch (Create Empty File)
    cat (Content of file)
  • 10. Terminal – A Linux Command Arena
  • 11. Feature of RHEL
    A Number of User can login simultaneously and can run number of process simultaneously
    Provide multi-desktop environment
    Provide Name Virtual Hosting
    Packaging i.e. RPM ( Red hat Package Manager)
    Security i.e. no effect of Virus having .exe .dll and many more extension
    Virtual Router Networking i.e. IP Forwarding
  • 12. Linux say NO to Windows Blue Screen Error
  • 13. Servers and Services in Linux
    Remote Desktop
    Network Time Protocol
    ACL (Access Control List)
    DNS(Domian Name Server)
    DHCP (Dynamic Host Conf. Protocol)
    FTP (File Transfer Protocols)
    NFS (Network File Sharing)
  • 14. Brief Introduction Of Servers
    Named as Domain Name Server will convert FQDN (Fully Qualified Domain Name) to IP and vice versa
    Install Package: bind, bind-chroot, caching name server
    Config file: named.conf
    Port No: 53 (UDP)
    Service: named, network
    Named as Dynamic host Configuration Protocols will be used to provide IP to client system which is requesting for IP by having its MAC Address (Mandatory Access Control) or Physical Address
    Install Package: dhcp
    Config File: dhcpd.conf
    Port No: 67
    Service: dhcpd
  • 15. Contd..
    Named as File Transfer Protocols is used to transfer file in the network . Network may be Internet, Intranet
    Install Package : vsFTP (Very Secure FTP)
    Config File : vsftpd.conf
    Port No: 20(Data) , 21 (Control) (TCP/UDP)
    Service : vsftpd
    Named as Network File Sharing is used to share file in the network . Network may be Internet, Intranet
    Install Package :nfs-utils
    ConfigFile : exports
    Service : nfs, portmap
  • 16. Contd..
    Named as SAMBA is used to shared the file between Windows and Linux OS.
    Install Package : samba
    ConfigFile : smb.conf
    Service: smb
    Named as Hyper Text Transfer Protocols is used to host the web-server.
    Also support Name Virtual Host and work on APACHE
    Install Package : httpd
    Config File : httpd.conf
    Port No: 80
    Service : httpd
  • 17. Contd..
    Named as Proxy Server is used to restrict Internet to single port.
    Install Package : squid
    Config File : squid.conf
    Port No: 3128, 8080
    Service : squid
    Named as Mail Server is used to create mail server in the Network . Network may be Internet, Intranet
    Install Package : sendmail
    Config File : ,
    Port No:25
    Service : sendmail
  • 18. Major USER of Linux
    95% of Banks World Wide including RBI
    For more:
  • 19. THANK YOU
    Questions & Answers