Novell CLIENT FOR LINUX 2.0 User manual

Novell
www.novell.com
novdocx (en) 26 August 2007
Novell Client 2.0 for Linux Administration Guide
ClientTM for Linux
2.0
September 18, 2007
ADMINISTRATION GUIDE

novdocx (en) 26 August 2007
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Contents 5
Contents
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About This Guide 7
1 Understanding the Novell Client for Linux 9
1.1 Understanding How the Novell Client for Linux Differs from the Novell Client for Windows 2000/
XP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2 Understanding the Novell Client for Linux Virtual File System. . . . . . . . . . . . . . . . . . . . . . . . . 10
1.2.1 Understanding When the Virtual File System Kernel Module Needs to Be Compiled 10
2 Configuring the Novell Client for Linux 13
2.1 Using the Novell Client Configuration Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1.1 Configuring Login Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.1.2 Configuring Map Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.1.3 Configuring Protocol Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1.4 Configuring Tray Application Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.1.5 Configuring File Browser Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.1.6 Configuring OpenSLP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.2 Using Configuration Files to Preconfigure the Novell Client . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3 Managing Login 23
3.1 Setting Up Integrated Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.1.1 Installing and Enabling CASA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.1.2 Configuring Integrated Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.1.3 Managing System Wide Integrated Login Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2 Setting Up Login Scripts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.3 Setting Up Login Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.4 Using OpenSLP to Simplify Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.4.1 Setting Up SLP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.4.2 Troubleshooting SLP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.4.3 Configuring SLP and the SUSE Firewall to Work with the Novell Client for Linux . . 29
4 Managing File Security 33
4.1 Checking File or Folder Rights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.2 Changing Trustee Rights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.3 Adding a Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.4 Removing a Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.5 Combining Multiple Trustees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5 Security Considerations 39
5.1 Security Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.2 Known Security Threats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.3 Security Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.3.1 Identification and Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.3.2 Authorization and Access Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.3.3 Roles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.3.4 Security Auditing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

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5.4 New and Modified Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.4.1 Configuration Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.4.2 PAM Login Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.4.3 User Profile Startup Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.4.4 KDE and GNOME Desktop Startup Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.4.5 Installation Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
5.5 Other Security Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
A Compiling the Novell Client Virtual File System Kernel Module 45
A.1 Installing the Required Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
A.2 Compiling the Novell Client Virtual File System Kernel Module . . . . . . . . . . . . . . . . . . . . . . . . 46
A.2.1 Compiling the Novell Client Virtual File System Kernel Module After a Kernel Update .
46
A.2.2 Compiling the Novell Client Virtual File System Kernel Module on Workstations Running
a Custom Kernel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
B The Novell Client for Linux Command Line Utilities 49
B.1 Shell Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
B.2 GUI Utilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
B.3 Using the Novell Client for Linux Man Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
C Novell Client for Linux Man Pages 53

About This Guide
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7
About This Guide
This guide describes how to configure the Novell®ClientTM for Linux software.
Chapter 1, “Understanding the Novell Client for Linux,” on page 9
Chapter 2, “Configuring the Novell Client for Linux,” on page 13
Chapter 3, “Managing Login,” on page 23
Chapter 4, “Managing File Security,” on page 33
Chapter 5, “Security Considerations,” on page 39
Appendix A, “Compiling the Novell Client Virtual File System Kernel Module,” on page 45
Appendix B, “The Novell Client for Linux Command Line Utilities,” on page 49
Appendix C, “Novell Client for Linux Man Pages,” on page 53
Audience
This guide is intended for network administrators.
Feedback
We want to hear your comments and suggestions about this manual and the other documentation
included with this product. Please use the User Comments feature at the bottom of each page of the
online documentation, or go to www.novell.com/documentation/feedback.html and enter your
comments there.
Documentation Updates
For the latest version of this documentation, see the Novell Client online documentation (http://
www.novell.com/documentation/linux_client/index.html) Web site.
Additional Documentation
For information on installing the Novell Client for Linux, see the “Novell Client 2.0 for Linux
Installation Quick Start.”
For information on the Novell Client tray application, see the Novell Client 2.0 for Linux User
Guide.
For information on login scripts, see the Novell Login Scripts Guide.
Documentation Conventions
In this documentation, a greater-than symbol (>) is used to separate actions within a step and items
within a cross-reference path.
A trademark symbol (®, TM, etc.) denotes a Novell trademark. An asterisk (*) denotes a third-party
trademark.

8Novell Client 2.0 for Linux Administration Guide
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Understanding the Novell Client for Linux
1
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9
1
Understanding the Novell Client
for Linux
The Novell®ClientTM for Linux* software allows users of Linux workstations to access and use all
of the services available on servers running Novell eDirectoryTM. The Novell Client brings the full
power, ease of use, manageability, and security of eDirectory to Linux workstations. The Novell
Client for Linux fully supports NetWare®, OES, and eDirectory services and utilities on a Linux
workstation, including security, file, and print services through Novell iPrint.
This section contains the following information:
Section 1.1, “Understanding How the Novell Client for Linux Differs from the Novell Client
for Windows 2000/XP,” on page 9
Section 1.2, “Understanding the Novell Client for Linux Virtual File System,” on page 10
1.1 Understanding How the Novell Client for
Linux Differs from the Novell Client for Windows
2000/XP
Using the Novell Client for Linux differs in a few ways from using the Novell Client for Windows*.
For users and network administrators who are familiar with the Novell Client for Windows,
knowing these differences can help the transition to Linux run more smoothly.
Installation and Upgrades
The Novell Client for Linux can be installed and upgraded using either YaST or an installation
script. For more information, see the “Novell Client 2.0 for Linux Installation Quick Start.”
There is no Automatic Client Upgrade available on Linux.
The Client Configuration Wizard lets you set up a configuration file that can be used to
preconfigure workstations during installation. For more information, see Section 2.2, “Using
Configuration Files to Preconfigure the Novell Client,” on page 20.
Logging In
When a user logs in to a local workstation and then opens a remote SSH session and logs in as
the same user, the network resources that user has rights to are available to the user.
The Novell Client for Linux can use the NMASTM login method to authenticate. However, the
NMAS login is not integrated in to the Novell Client for Linux login screen, so the default
login sequence cannot be set in the Novell Client Login screen.
The Novell Client for Linux uses OpenSLP, whereas the Novell Client for Windows uses
Novell’s implementation of SLP. The network administrator must set up OpenSLP before users
can look up trees, contexts, and servers using the Browse buttons in the Novell Client Login
window. If OpenSLP is not set up, the user must enter a username, tree, and context to connect
to the network. See Chapter 3, “Managing Login,” on page 23 for more information.

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Because Linux uses OpenSLP, the implementation is different and the user’s experience is
different. For more information, see Section 3.4, “Using OpenSLP to Simplify Login,” on
page 27.
The Novell Client for Linux does not use the Dynamic Local User or Location Profiles that are
available in Windows.
User Interface
Both a graphical user interface and command line utilities are available to complete client actions
such as mapping drives, setting trustee rights, and copying files.
Login Scripts
Novell has ported the vast majority of login script functionality to the Linux platform. This means
that the login scripts you create in your network can be used for both Windows users and Linux
users with very little difference in functionality.
Some differences do exist, however. For example, mapped drives are implemented by creating
symbolic links and search drives are not available on Linux. Other small differences are created by
the inherent difference between Windows and Linux. All the differences and issues are listed in the
Novell Login Scripts Guide.
1.2 Understanding the Novell Client for Linux
Virtual File System
The Novell Client for Linux differs from previous Novell Clients to enable it to work on the Linux
platform. In Windows, the Novell Client loads a single binary that works on multiple operating
system platforms without modifications. The Novell Client for Linux has a Virtual File System that
consists of a kernel module (novfs.ko) that runs as part of the Linux kernel and a daemon
(novfsd) that runs in the user space. Both components must be running on the workstation for the
client to connect to the network.
The daemon can run on any of the supported Linux platforms without modification. The kernel
module, however, is dependent on the kernel version and must be compiled to match the kernel on
the workstation. When the Novell Client is installed, it compiles the kernel module during the
installation process. If this process fails, the kernel module cannot load. It attempts to recompile
when the workstation is restarted.
1.2.1 Understanding When the Virtual File System Kernel
Module Needs to Be Compiled
The following is a list of the instances when you must compile the Novell Client Virtual File System
Kernel Module (novfs.ko):
You installed the Novell Client and received an error message. This generally occurs because
all the required packages are not installed on a workstation. You must install these packages,
compile the Novell Client Virtual File System Kernel Module (novfs.ko), and restart the
workstation. See “System Requirements” in the Novell Client for Linux Installation Quick Start
for more information.
You have previously compiled the Novell Client Virtual File System Kernel Module
(novfs.ko) and then made changes to the kernel.