Network Management with linux by Quontra Solutions


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Quontra Solutions Provides Online Training on Linux by Real time Instructors having 5+ years of experience in IT sector.
Why to choose Linux Course:
For Linux Professionals there is a good demand in IT sector. If you are planning to pursue a course in Linux, then you need not worry as the demand for Linux professionals are never ending! After gaining popularity on the desktop and being quite popular in the enterprise, a large number of jobs and designations are available in the Linux skills set function.
Quontra Solutions exclusively known for our interactive online sessions throughout the world in USA, UK.We are the best training providers on all IT Courses in United States with updated versions of software and having experienced Linux instructors.
Our expertise team has designed an intensive training with the coverage of essential elements of Linux. We offer different course for developers, designers, technical consultant. It is a unique opportunity to explore your skills in a useful manner to the company’s needs and users requirements. Our customized Linux course training covers the following topics.
Please call us (404) 900-9988 for free demo on Linux. Quontra Solutions is the best Linux online training Institute in United States.
Training Offer: If you are going to join more than one member with you there will be 10% concession on your training fee providing Gift Voucher.
Course Content:
Module 1: Red Hat Enterprise Linux Essentials (RH124)
Module 2: Red Hat Enterprise Linux System Administration (RH 135)
Module 3: Red Hat Network Services And Security Administration(RH255)

Our exclusive features:
• High profile expertise faculty with real time exposure
• Real time job support with latest updates on market trends
• Live projects in sync with current market portfolios
• Well Experienced Real Time Faculties
• Training with live experience
• Customized Topics as per Your Requirement
• 100% job oriented Online training
• Very in depth course material with real time scenarios.
• We are providing class with highly qualified trainer.
• We will provide class and demo session at student flexible timings.
• In training case studies and real time scenarios covered.
• We will give every recorded session for play later.
• We are giving placement support by multiple consultancies in USA, UK etc.
If you want to know more about Quontra Solutions
3427 Vintage cir, SE Smyrna, GA-30080
Callus: (404) 900-9988 Email: Web:

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Network Management with linux by Quontra Solutions

  1. 1. Open Source Software When programmers on the Internet can read, redistribute, and modify the source for a piece of software, it evolves. People improve it, people adapt it, people fix bugs. And this can happen at a speed that, compared to conventional software development, seems astonishing.
  2. 2. Why is it significant ?? Growing popularity Powerful Runs on multiple hardware platforms Users like its speed and stability No requirement for latest hardware It’s “free” Licensed under GPL Vendors are distributors who package Linux
  3. 3. The Linux System User commands Shell Kernel File Systems Device Drivers Hardware User commands includes executable programs and scripts The shell interprets user commands. It is responsible for finding the commands and starting their execution. Several different shells are available. Bash is popular. The kernel manages the hardware resources for the rest of the system.
  4. 4. Shells An interface between the Linux system and the user Used to call commands and programs An interpreter Powerful programming language “Shell scripts” = .bat .cmd EXEC REXX Many available (bsh; ksh; csh;
  5. 5. Linux File System Basics  Linux files are stored in a single rooted, hierarchical file system Data files are stored in directories (folders) Directories may be nested as deep as needed Directori es User home directories Data files root
  6. 6. Naming Files  Files are named by naming each containing directory starting at the root  This is known as the pathname /etc/pa sswd /home/appl e/b
  7. 7. Some Special File Names Some file names are special: / The root directory (not to be confused with the root user) . The current directory .. The parent (previous) directory ~ My home directory Examples: ./a same as a ../mango/x go up one level then look in directory mango for x
  8. 8. File Permissions Every user: Has a uid (login name), gid (login group) and membership of a "groups" list: The uid is who you are (name and number) The gid is your initial “login group” you normally belong to The groups list is the file groups you can access via group permissions
  9. 9. File Permissions Linux provides three kinds of permissions: Read - users with read permission may read the file or list the directory Write - users with write permission may write to the file or new files to the directory Execute - users with execute permission may execute the file or lookup a specific file within a directory
  10. 10. File Permissions The long version of file listing (ls - ld) will display the file permissions: -rwxrwxr-x 1 rvdheij rvdheij 5224 Dec 30 03:22 hello -rw-rw-r-- 1 rvdheij rvdheij 221 Dec 30 03:59 hello.c -rw-rw-r-- 1 rvdheij rvdheij 1514 Dec 30 03:59 hello.s drwxrwxr-x 7 rvdheij rvdheij 1024 Dec 31 14:52 posixuft Permissions Owner Group
  11. 11. Interpreting File Permissions -rwxrwxrwx Other permissions Group permissions Owner permissions Directory flag (d=directory; l=link)
  12. 12. File Systems Linux supports many different types Most commonly, ext2fs Filenames of 255 characters File sizes up to 2GB Theoretical limit 4TB Derived from extfs Highly reliable and high performer
  13. 13. Virtual File System VFS is designed to present a consistent view of data as stored on hardware. Almost all hardware devices are represented using a generic interface. VFS goes further, allowing the sysadmin to mount any of a set of logical file systems on any physical
  14. 14. Virtual File System Logical file systems promote compatibility with other operating system standards permitting developers to implement file systems with different policies. VFS abstracts details of physical device and logical file system allowing processes to access files using a common interface, without knowing what physical or logical system the file resides on.
  15. 15. User Management  Simple way to add user is useradd command.  passwd will allow to change the password.  Of course there are lot of GUI tools for all these user management.  Group all common user to single group.  Be careful while editing /etc/passwd  /etc/shadow passwd file may also exist
  16. 16. Telnet Protocol
  17. 17. TELNET Protocol TELNET provides Remote Logging capability on TCP. TELNET is an old application & has widespread interoperability. A TELNET connection is initiated when you enter the TELNET command and supply either a host name or an IP address.
  18. 18. The general format of the TELNET command is – TELNET [ IP_address | host_name] [ port] After this password is required for the authentication. You can use any commands that are available on the remote system that you are attached to. In Linux, you can’t login as root user from TELNET for the sake of security, you can login as normal user to the server(by default).
  19. 19. File Transfer Protocol (FTP)
  20. 20. File Transfer Protocol FTP is a useful and powerful utility for the general user. FTP allows you to upload and download files between local and remote hosts. The general form of the FTP command is FTP [ IP_address | host_name]. You initiate an FTP control connection to a host by supplying a host name with the FTP command; optionally,
  21. 21. LINUX vs. WINDOWS
  22. 22. Financial Differences Technical Differences End-User Differences
  23. 23. Financial Differences
  24. 24. Linux vs. Windows COST Linux WINDOWS Online Downloads Free Not Available Retail Price, CD $50 $300
  25. 25. Technical Differences
  26. 26. Linux vs. Windows Keeping up to date By Upgrading Linux upgrades faster than Windows Compatibility Linux is Backward Compatible unlike Windows
  27. 27. End-User Differences
  28. 28. Proprietary vs. Open Source Windows is a Proprietary Technology Applications will only work on Windows Linux – Open Source
  29. 29. Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux LinuxLinux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Linux Is Linux for you ??
  30. 30. Thank You ….