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Applies to SUSE Linux Enterprise Server 11 SP4

Part I Support and Common Tasks

1 YaST Online Update

Novell offers a continuous stream of software security updates for your product. By default, the update applet is used to keep your system up-to-date. Refer to Sección 9.4, “Mantenimiento del sistema actualizado” for further information on the update applet. This chapter covers the alternative tool …

2 Gathering System Information for Support

In case of problems, a detailed system report may be created with either the supportconfig command line tool or the YaST Support module. Both will collect information about the system such as: current kernel version, hardware, installed packages, partition setup and much more. The result is a TAR archive of files. After opening a Service Request (SR), you can upload the TAR archive to Global Technical Support. It will help to locate the issue you reported and to assist you in solving the problem.

The command line tool is provided by the package supportutils which is installed by default. The YaST Support module is based on the command line tool.

3 YaST in Text Mode

This section is intended for system administrators and experts who do not run an X server on their systems and depend on the text-based installation tool. It provides basic information about starting and operating YaST in text mode.

4 Snapshots/Rollback with Snapper

Being able to do file system snapshots providing the ability to do rollbacks on Linux is a feature that was often requested in the past. Snapper, in conjunction with the Btrfs file system or thin-provisioned LVM volumes now fills that gap.

Btrfs, a new copy-on-write file system for Linux, supports file system snapshots (a copy of the state of a subvolume at a certain point of time) of subvolumes (one or more separately mountable file systems within each physical partition). Snapper lets you manage these snapshots. Snapper comes with a command line and a YaST interface.

By default Snapper and Btrfs on SUSE Linux Enterprise Server are set up to serve as an undo tool for system changes made with YaST and zypper. Before and after running a YaST module or zypper, a snapshot is created. Snapper lets you compare the two snapshots and provides means to revert the differences between the two snapshots. The tools also provide system backups by creating hourly snapshots of the system subvolumes.

5 Remote Access with VNC

Virtual Network Computing (VNC) enables you to control a remote computer via a graphical desktop (as opposed to a remote shell access). VNC is platform-independent and lets you access the remote machine from any operating system.

SUSE Linux Enterprise Server supports two different kinds of VNC sessions: One-time sessions that live as long as the VNC connection from the client is kept up, and persistent sessions that live until they are explicitly terminated.

6 Managing Software with Command Line Tools

This chapter describes Zypper and RPM, two command line tools for managing software. For a definition of the terminology used in this context (for example, repository, patch, or update) refer to Sección 9.1, “Definición de los términos”.

7 Bash and Bash Scripts

These days many people use computers with a graphical user interface (GUI) like KDE or GNOME. Although they offer lots of features, their use is limited when it comes to the execution of automated tasks. Shells are a good addition to GUIs and this chapter gives you an overview of some aspects of shells, in this case Bash.

8 Using Third-Party Software

For information about using third-party software installed on SUSE Linux Enterprise and support of SUSE products used with third-party software, see the following links:

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