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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 15.6

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

Our documentation is available online at https://doc.opensuse.org. Browse or download the documentation in various formats.

Note
Note: Latest updates

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

SUSE Knowledgebase

If you run into an issue, check out the Technical Information Documents (TIDs) that are available online at https://www.suse.com/support/kb/. Search the SUSE Knowledgebase for known solutions driven by customer need.

In your system

For offline use, the release notes are also available under /usr/share/doc/release-notes on your system. The documentation for individual packages is available at /usr/share/doc/packages.

Many commands are also described 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, click the Report an issue icon next to a headline in the HTML version of this document. This preselects the right product and category in Bugzilla and adds 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, click the Edit source document icon next to a headline in the HTML version of this document. This will take you to the source code on GitHub, where you can open a pull request.

A GitHub account is required.

Note
Note: Edit source document only available for English

The Edit source document icons are only available for the English version of each document. For all other languages, use the Report an issue icons instead.

For more information about the documentation environment used for this documentation, see the repository's README.

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 typographic conventions are used in this document:

  • /etc/passwd: Directory names and file names

  • PLACEHOLDER: Replace PLACEHOLDER with the actual value

  • PATH: An environment variable

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

  • user: The name of a user or group

  • package_name: The name of a software 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

  • Chapter 1, “Example chapter”: A cross-reference to another chapter in this guide.

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

    # command
> sudo command

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

    > command

  • Commands can be split into two or multiple lines by a backslash character (\) at the end of a line. The backslash informs the shell that the command invocation will continue after the end of the line: 

    > echo a b \
c d

  • A code block that shows both the command (preceded by a prompt) and the respective output returned by the shell: 

    > command
output

  • 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.

  • Compact Notices

    Note

    Additional information, for example about differences in software versions.

    Tip

    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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