Novell IFOLDER 3.X - SECURITY ADMINISTRATOR GUIDE... Service-Handbuch

Novell

www.novell.com

novdocx (ENU) 01 February 2006

Novell iFolder 3.x Security Administrator Guide

iFolder®

3.x

August 15, 2006

SECURITY ADMINISTRATOR GUIDE

novdocx (ENU) 01 February 2006

Legal Notices

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novdocx (ENU) 01 February 2006

Contents

novdocx (ENU) 01 February 2006

About This Guide 7

1 Security Best Practices Overview 9

1.1 Security Recommendations for iFolder 3.x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.2 Security Recommendations for OES Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2 Security Best Practices for Novell iFolder 3.x11

2.1 Using SSL for Server - LDAP Server Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.2 Using SSL for Enterprise Server - iManager Communications . . . . . . . . . . . . . . . . . . . . . . . . 12

2.3 Using SSL for Enterprise Server - Client Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4 Using SSL for Enterprise Server - Web Access Server Communications . . . . . . . . . . . . . . . . 12

2.5 Using SSL for Web Access Server - Users’ Web Browser Communications . . . . . . . . . . . . . 12

2.6 Disabling SSL 2.0 Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.7 Configuring a Cipher Suite to Use for SSL/TLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.8 Installing Trusted Roots and Certifications on the iFolder server . . . . . . . . . . . . . . . . . . . . . . 13

2.9 Installing Server Certificates from a Known Certificate Authority. . . . . . . . . . . . . . . . . . . . . . . 13

2.10 Using a Shared Certificate in iFolder Clusters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.11 Ensuring Privilege Separation for the iFolder Proxy User . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.12 Securing the iFolder Proxy User Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.13 Using Synchronize Now to Remove Users Effective Immediately. . . . . . . . . . . . . . . . . . . . . . 15

2.14 Controlling Access to the iFolder Data Store . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.15 Controlling Access to the iFolder Server Configuration Files. . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.16 Controlling Access to and Backing Up the iFolder Audit Logs. . . . . . . . . . . . . . . . . . . . . . . . . 15

2.17 Storing iFolder 3.xData Nonencrypted on the Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.18 Preventing the Propagation of Viruses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.19 Backing Up the iFolder Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3 Security Best Practices for the iFolder Client 19

3.1 Configuring Client-Side Firewalls for iFolder Communications . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2 Configuring Client-Side Virus Scanners for iFolder Communications . . . . . . . . . . . . . . . . . . . 19

3.3 Configuring a Web Browser to Use SSL 3.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4 Other Security Best Practices 21

4.1 Controlling Physical Access to the iFolder Servers and Resources . . . . . . . . . . . . . . . . . . . . 21

4.2 Securing Access to the Servers with a Firewall. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.3 Securing Communications with a VPN If SSL Is Disabled. . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.4 Securing Wireless LAN Connections If SSL Is Disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.5 Creating Strong Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

A Documentation Updates 23

A.1 August 15, 2006. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

A.1.1 Security Best Practices for iFolder 3.x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

A.2 November 1, 2005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6Novell iFolder 3.x Security Administrator Guide

novdocx (ENU) 01 February 2006

About This Guide

This guide provides specific instructions on how to install, configure, and maintain Novell®

iFolder®3.xand the iFolderTM client for iFolder 3.xin the most secure way possible.

•Chapter 1, “Security Best Practices Overview,” on page 9

•Chapter 2, “Security Best Practices for Novell iFolder 3.x,” on page 11

•Chapter 3, “Security Best Practices for the iFolder Client,” on page 19

•Chapter 4, “Other Security Best Practices,” on page 21

Audience

This guide is intended for network security 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 Comment 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 most recent version of the Novell iFolder 3.x Security Administrator Guide, visit the Novell

iFolder 3.x documentation Web site (http://www.novell.com/documentation/ifolder3/index.html).

For emerging issues with Novell iFolder 3.x and the iFolder client, see the Novell iFolder 3.x

Readme (http://www.novell.com/documentation/ifolder3/readme/data/readme.html).

Additional Documentation

For information, see the following:

•Novell iFolder 3.xdocumentation (http://www.novell.com/documentation/ifolder3/index.html)

•Novell Open Enterprise Server product site (http://www.novell.com/products/

openenterpriseserver)

•Novell Open Enterprise Server documentation (http://www.novell.com/documentation/oes/

index.html)

•Novell eDirectoryTM 8.7.3 documentation (http://www.novell.com/documentation/edir873/

treetitl.html)

•Novell iManager 2.5 documentation (http://www.novell.com/documentation/imanager25/

treetitl.html)

•Novell Linux Desktop 9 product site (http://www.novell.com/products/desktop/)

•Novell Linux Desktop 9 documentation (http://www.novell.com/documentation/nld/

treetitl.html)

•Novell Technical Support (http://www.novell.com/support/)

8Novell iFolder 3.x Security Administrator Guide

novdocx (ENU) 01 February 2006

Documentation Conventions

In Novell documentation, a greater-than symbol (>) is used to separate actions within a step and

items in a cross-reference path.

A trademark symbol (®, TM, etc.) denotes a Novell trademark. An asterisk (*) denotes a third-party

trademark.

When a single pathname can be written with a backslash for some platforms or a forward slash for

other platforms, the pathname is presented with a backslash. Users of platforms that require a

forward slash, such as Linux* or UNIX*, should use forward slashes as required by your software.

Security Best Practices Overview

novdocx (ENU) 01 February 2006

Security Best Practices Overview

This section summarizes the recommended configurations and settings required to run Novell®

iFolder®3.xand the iFolderTM client in a secure mode.

•Section 1.1, “Security Recommendations for iFolder 3.x,” on page 9

•Section 1.2, “Security Recommendations for OES Linux,” on page 10

1.1 Security Recommendations for iFolder 3.x

The following table lists the iFolder server configuration settings that are security related or that

impact the security of iFolder resources.

Parameter Possible Values Default Value Recommended Value for

Best Security

Port for server to LDAP

server communications

iManager > Novell

iFolder 3 > System >

LDAP Settings > Server

Port

Port 636 (secure) or port

389 (insecure)

636, secure 636, secure

SSL for server to LDAP

server communications

iManager > Novell

iFolder 3 > System >

LDAP Settings > Port Is

Secure

Select Yes to enable

SSL; deselect Yes (No)

to disable SSL

Yes, SSL enabled Yes, SSL enabled

iFolder Proxy user

iManager > Novell

iFolder 3 > System >

LDAP Settings > iFolder

Proxy User

Autogenerated during

the iFolder enterprise

server configuration; can

be modified thereafter

Autogenerated Keep the autogenerated

iFolder Proxy username;

if you change it, make

sure the username is

different than the iFolder

Admin user, equivalent

iFolder Admin users,

and other system users;

and update the Proxy

User password.

iFolder Proxy user

password

iManager > Novell

iFolder 3 > System >

LDAP Settings > Proxy

User Password

User-specified Autogenerated during

initial configuration of the

iFolder server

User-specified, using

strong password

practices

Web browser to

iManager Server

communications

HTTPS and Novell

eDirectoryTM

authentication

HTTPS and eDirectory

authentication

HTTPS and eDirectory

authentication

10 Novell iFolder 3.x Security Administrator Guide

novdocx (ENU) 01 February 2006

1.2 Security Recommendations for OES Linux

For information about security issues in Novell Open Enterprise Server, see the following in the

Novell OES Planning and Implementation Guide (http://www.novell.com/documentation/oes/

implgde/data/front.html):

•“Authentication” (http://www.novell.com/documentation/oes/implgde/data/

authentication.html)

•“Security” (http://www.novell.com/documentation/oes/implgde/data/security.html)

iFolder Admin user User-specified User-specified

administrator user

Special iFolder Admin

user identity for

managing iFolder

services

Equivalent iFolder

Admin users

User-specified None Users with limited

administrator rights,

such as for a specific

iFolder server

Port for iManager to

server communications

iManager > Novell

iFolder 3 > (select any

task to go to the iFolder

Port 443 (secure) or port

80 (insecure)

443, secure 443, secure

SSL for iManager to

server communications

iManager > Novell

iFolder 3 > (select any

task to go to the iFolder

Select Secure (secure)

to use SSL; deselect

Secure (insecure) to use

unencrypted

connections

Select Secure, SSL

enabled

Select Secure, SSL

enabled

Server to client

communications

/opt/novell/

ifolder3/web/

web.config file

SimiasRequireSSL (Yes/

No)

SimiasSSLPort

(443/80)

SimiasRequireSSL =

Yes

SimiasSSLPort = 443

SimiasRequireSSL =

Yes

SimiasSSLPort = 443

Parameter Possible Values Default Value Recommended Value for

Best Security

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