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

What Is the Kerberos Service?

How the Kerberos Service Works

Initial Authentication: the Ticket-Granting Ticket

Subsequent Kerberos Authentications

Kerberos Remote Applications

Kerberos Principals

Kerberos Realms

Kerberos Servers

Kerberos Security Services

Components of Various Kerberos Releases

Kerberos Components

About Kerberos in this Release

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

28.  Managing Auditing (Tasks)

29.  Auditing (Reference)



What Is the Kerberos Service?

The Kerberos service is a client-server architecture that provides secure transactions over networks. The service offers strong user authentication, as well as integrity and privacy. Authentication guarantees that the identities of both the sender and the recipient of a network transaction are true. The service can also verify the validity of data being passed back and forth (integrity) and encrypt the data during transmission (privacy). Using the Kerberos service, you can log in to other machines, execute commands, exchange data, and transfer files securely. Additionally, the service provides authorization services, which allows administrators to restrict access to services and machines. Moreover, as a Kerberos user, you can regulate other people's access to your account.

The Kerberos service is a single sign-on system, which means that you only need to authenticate yourself to the service once per session, and all subsequent transactions during the session are automatically secured. After the service has authenticated you, you do not need to authenticate yourself every time you use a Kerberos-based command such as ftp or ssh, or to access data on an NFS file system. Thus, you do not have to send your password over the network, where it can be intercepted, each time you use these services.

The Kerberos service in the Oracle Solaris release is based on the Kerberos V5 network authentication protocol that was developed at the Massachusetts Institute of Technology (MIT). People who have used the Kerberos V5 product will therefore find the Oracle Solaris version very familiar. Because the Kerberos V5 protocol is a de facto industry standard for network security, the Oracle Solaris version promotes interoperability with other systems. In other words, because the Kerberos service in the Oracle Solaris release works with systems that use the Kerberos V5 protocol, the service allows for secure transactions even over heterogeneous networks. Moreover, the service provides authentication and security both between domains and within a single domain.

The Kerberos service allows for flexibility in running Oracle Solaris applications. You can configure the service to allow both Kerberos-based and non-Kerberos-based requests for network services such as the NFS service, telnet, and ftp. As a result, current applications still work even if they are running on systems on which the Kerberos service is not enabled. Of course, you can also configure the Kerberos service to allow only Kerberos-based network requests.

The Kerberos service provides a security mechanism which allows the use of Kerberos for authentication, integrity, and privacy when using applications that use the Generic Security Service Application Programming Interface (GSS-API). However, applications do not have to remain committed to the Kerberos service if other security mechanisms are developed. Because the service is designed to integrate modularly into the GSS-API, applications that use the GSS-API can utilize whichever security mechanism best suits their needs.