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Reference
  1. About this guide
  2. I Advanced administration
    1. 1 YaST in text mode
    2. 2 Managing software with command line tools
    3. 3 System recovery and snapshot management with Snapper
    4. 4 Remote graphical sessions with VNC
    5. 5 Expert Partitioner
    6. 6 Installing multiple kernel versions
    7. 7 Graphical user interface
  3. II System
    1. 8 32-bit and 64-bit applications in a 64-bit system environment
    2. 9 Introduction to the boot process
    3. 10 The systemd daemon
    4. 11 journalctl: Query the systemd journal
    5. 12 The boot loader GRUB 2
    6. 13 Basic networking
    7. 14 UEFI (Unified Extensible Firmware Interface)
    8. 15 Special system features
    9. 16 Dynamic kernel device management with udev
  4. III Services
    1. 17 SLP
    2. 18 Time synchronization with NTP
    3. 19 The domain name system
    4. 20 DHCP
    5. 21 Samba
    6. 22 Sharing file systems with NFS
    7. 23 On-demand mounting with autofs
    8. 24 The Apache HTTP server
    9. 25 Setting up an FTP server with YaST
    10. 26 Squid caching proxy server
  5. IV Mobile computers
    1. 27 Mobile computing with Linux
    2. 28 Using NetworkManager
    3. 29 Power management
  6. A An example network
  7. B GNU licenses
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Applies to openSUSE Leap 15.3

About this guide Edit source

Available documentation
Improving the documentation
Documentation conventions
Source code
Acknowledgments

This manual gives you a general understanding of openSUSE® Leap. It is intended mainly for system administrators and home users with basic system administration knowledge. Check out the various parts of this manual for a selection of applications needed in everyday life and in-depth descriptions of advanced installation and configuration scenarios.

Advanced administration

Learn about advanced adminstrations tasks such as using YaST in text mode and managing software from the command line. Find out how to do system rollbacks with Snapper and how to use advanced storage techniques on openSUSE Leap.

System

Get an introduction to the components of your Linux system and a deeper understanding of their interaction.

Services

Learn how to configure the various network and file services that come with openSUSE Leap.

Mobile computers

Get an introduction to mobile computing with openSUSE Leap, get to know the various options for wireless computing and power management.

1 Available documentation Edit source

Online documentation

The online documentation for this product is available at http://doc.opensuse.org/. Browse or download the documentation in various formats.

Note
Note: Latest updates

The latest documentation updates are usually available in the English version of the documentation.

In your system

For offline use, find documentation in your installed system under /usr/share/doc. Many commands are also described in detail in their manual pages. To view them, run man, followed by a specific command name. If the man command is not installed on your system, install it with sudo zypper install man.

2 Improving the documentation Edit source

Your feedback and contributions to this documentation are welcome. The following channels for giving feedback are available:

Bug reports

Report issues with the documentation at https://bugzilla.opensuse.org/. To simplify this process, you can use the Report Documentation Bug links next to headlines in the HTML version of this document. These preselect the right product and category in Bugzilla and add a link to the current section. You can start typing your bug report right away. A Bugzilla account is required.

Contributions

To contribute to this documentation, use the Edit Source links next to headlines in the HTML version of this document. They take you to the source code on GitHub, where you can open a pull request. A GitHub account is required.

Note
Note: Edit Source only available for English

The Edit Source links are only available for the English version of each document. For all other languages, use the Report Documentation Bug links instead.

For more information about the documentation environment used for this documentation, see the repository's README at https://github.com/SUSE/doc-sle/blob/main/README.adoc

Mail

You can also report errors and send feedback concerning the documentation to <>. Include the document title, the product version, and the publication date of the document. Additionally, include the relevant section number and title (or provide the URL) and provide a concise description of the problem.

Help

If you need further help on openSUSE Leap, see https://en.opensuse.org/Portal:Support.

3 Documentation conventions Edit source

The following notices and typographical conventions are used in this documentation:

  • /etc/passwd: directory names and file names

  • PLACEHOLDER: replace PLACEHOLDER with the actual value

  • PATH: the environment variable PATH

  • ls, --help: commands, options, and parameters

  • user: users or groups

  • package name : name of a package

  • Alt, Alt–F1: a key to press or a key combination; keys are shown in uppercase as on a keyboard

  • File, File › Save As: menu items, buttons

  • Dancing Penguins (Chapter Penguins, ↑Another Manual): This is a reference to a chapter in another manual.

  • Commands that must be run with root privileges. Often you can also prefix these commands with the sudo command to run them as non-privileged user. 

    # command
> sudo command

  • Commands that can be run by non-privileged users. 

    > command

  • Notices

    Warning
    Warning: Warning notice

    Vital information you must be aware of before proceeding. Warns you about security issues, potential loss of data, damage to hardware, or physical hazards.

    Important
    Important: Important notice

    Important information you should be aware of before proceeding.

    Note
    Note: Note notice

    Additional information, for example about differences in software versions.

    Tip
    Tip: Tip notice

    Helpful information, like a guideline or a piece of practical advice.

4 Source code Edit source

The source code of openSUSE Leap is publicly available. Refer to https://en.opensuse.org/Source_code for download links and more information.

5 Acknowledgments Edit source

With a lot of voluntary commitment, the developers of Linux cooperate on a global scale to promote the development of Linux. We thank them for their efforts—this distribution would not exist without them. Special thanks, of course, goes to Linus Torvalds.

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