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Oracle Solaris 11.1 Administration: Security Services     Oracle Solaris 11.1 Information Library
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Document Information


Part I Security Overview

1.  Security Services (Overview)

Part II System, File, and Device Security

2.  Managing Machine Security (Overview)

3.  Controlling Access to Systems (Tasks)

4.  Virus Scanning Service (Tasks)

5.  Controlling Access to Devices (Tasks)

6.  Verifying File Integrity by Using BART (Tasks)

7.  Controlling Access to Files (Tasks)

Part III Roles, Rights Profiles, and Privileges

8.  Using Roles and Privileges (Overview)

9.  Using Role-Based Access Control (Tasks)

10.  Security Attributes in Oracle Solaris (Reference)

Part IV Cryptographic Services

11.  Cryptographic Framework (Overview)

12.  Cryptographic Framework (Tasks)

13.  Key Management Framework

Part V Authentication Services and Secure Communication

14.  Using Pluggable Authentication Modules

15.  Using Secure Shell

16.  Secure Shell (Reference)

17.  Using Simple Authentication and Security Layer

18.  Network Services Authentication (Tasks)

Part VI Kerberos Service

19.  Introduction to the Kerberos Service

20.  Planning for the Kerberos Service

21.  Configuring the Kerberos Service (Tasks)

22.  Kerberos Error Messages and Troubleshooting

23.  Administering Kerberos Principals and Policies (Tasks)

24.  Using Kerberos Applications (Tasks)

25.  The Kerberos Service (Reference)

Part VII Auditing in Oracle Solaris

26.  Auditing (Overview)

27.  Planning for Auditing

Planning Auditing (Tasks)

How to Plan Auditing in Zones

How to Plan Who and What to Audit

How to Plan Disk Space for Audit Records

How to Prepare to Stream Audit Records to Remote Storage

Understanding Audit Policy

Controlling Auditing Costs

Cost of Increased Processing Time of Audit Data

Cost of Analysis of Audit Data

Cost of Storage of Audit Data

Auditing Efficiently

28.  Managing Auditing (Tasks)

29.  Auditing (Reference)



Controlling Auditing Costs

Because auditing consumes system resources, you must control the degree of detail that is recorded. When you decide what to audit, consider the following costs of auditing:

If you are using the default plugin, audit_binfile, you must also consider the storage cost of audit data.

Cost of Increased Processing Time of Audit Data

The cost of increased processing time is the least significant of the costs of auditing. The first reason is that auditing generally does not occur during computation-intensive tasks, such as image processing, complex calculations, and so forth. If you are using the audit_binfile plugin, another reason is that audit administrators can move the post-selection tasks from the audited system to systems that are dedicated to analyzing audit data. Finally, unless kernel events are preselected, the audit service has no measurable impact on system performance.

Cost of Analysis of Audit Data

The cost of analysis is roughly proportional to the amount of audit data that is collected. The cost of analysis includes the time that is required to merge and review audit records.

For records that are collected by the audit_binfile plugin, cost also includes the time that is required to archive the records and their supporting name service databases, and to keep the records in a safe place. Supporting databases include groups, hosts, and passwd.

The fewer records that you generate, the less time that is required to analyze the audit trail. The sections Cost of Storage of Audit Data and Auditing Efficiently describe ways to audit efficiently. Efficient auditing reduces the amount of audit data, while still providing enough coverage to achieve your site's security goals.

Cost of Storage of Audit Data

If you are using the audit_binfile plugin, storage cost is the most significant cost of auditing. The amount of audit data depends on the following:

Because these factors vary from site to site, no formula can predetermine the amount of disk space to set aside for audit data storage. Use the following information as a guide: