HP UX Kerberos Data Security Software manual Converting a Secondary Server to a Primary Server

Page 236

Propagation

Monitoring Propagation

Step

4.

Verify that the date/time is the same among all security servers.

 

 

Synchronize time on all the servers to match the primary security server

 

 

time.

Step

5.

Check resource utilization on the server. If there is 100 percent

 

 

utilization of a file system, it can prevent kpropd from building queue

 

 

files, which will cause propagation to stall or fail. Remove unnecessary

 

 

files, and archive log files.

Step

6.

Restart the daemons as described in the“Setting Up Propagation” on

 

 

page 224 section.

 

 

If you encounter the error message:

 

 

TGS: Error processing request from host

 

 

after installing a new secondary server and attempting propagation,

 

 

restart the daemons on the secondary server after the full dump has

 

 

completed.

 

 

Converting a Secondary Server to a Primary Server

 

 

You may need to convert a secondary server to a primary server, for

 

 

instance, during disaster recovery. To do this, we recommend reinstalling

 

 

the Kerberos Server software as follows:

Step

1.

Verify the secondary server has an up-to-date copy of the principal

 

 

database. You may need to initiate a full dump of the database from the

 

 

current primary server. If your primary server has failed and you cannot

 

 

perform a full database dump or view the primary log files, review the

 

 

secondary server propagation log files to determine which secondary

 

 

server has the most recent database copy. Then copy the principal.* files

 

 

from the secondary server that has most recently successfully received

 

 

propagation data to the secondary server being converted to the primary.

 

 

Note that any changes that were made to the primary database before

 

 

the failure, but after the last successful propagation, are lost and must

 

 

be re-created.

Step

2.

Retrieve the following files, either from the primary security server or

 

 

from the most recent primary security server backup.

•/opt/krb5/.k5.REALM, where REALM is the server’s default realm.

•krb.conf

•krb.realms

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Chapter 7

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Contents Edition Manufacturing Part Number T1417-90003 E0602Legal Notices Page Page Contents Administration Contents Contents Inter-realm Troubleshooting Glossary Index Contents Tables Tables Figures Figures Preface Accessing the World Wide Web AudienceRelated Software Products Related DocumentationRelated Request for Comments RFCs Conventions WidthUsing This Manual Glossary Index Overview Chapter Overview How The Kerberos Server Works Configuring and Administering the Kerberos Server on HP-UX Authentication Process Authentication Process StepTGT Authentication Process Authentication Process DES vs 3DES Key Type Settings Must be assigned a key type or default keys issued byKrbtgt/REALM Name is the ticket-granting principal. This is Is added to the database. The krbtgt/REALM NAMEprincipalInstallation Installation Before Installing The Kerberos Server Hardware Requirements Software Requirements Installing The Kerberos Server With SD-UX Installing The Kerberos Server Chapter Migration Migration Policy Migration on Step-wise Procedure For Migration on Policy Migration Step-wise Procedure For Migration For version 2.0 of the Kerberos Server, as described in Step On successful completion the following message is displayed Step-wise Procedure For Migration Chapter Interoperability With Windows Interoperability With Windows Chapter Overview Understanding the Terminology Understanding the Terminology Table of Analogous Terms Table of Analogous Terms HP’s Kerberos Server WindowsHP’s Kerberos Server and Windows 2000 Interoperability CaseEstablishing Trust Between HP’s Kerberos Servers and Windows Single Realm Domain Authentication Inter-Realm Inter-Domain Authentication Special Considerations for Interoperability Database ConsiderationsEncryption Considerations Postdated TicketsSpecial Considerations for Interoperability Chapter Configuration Configuration File Configuration Files For The Kerberos ServerSecurity Server Files That Require Configuration Auto-Configuration of the Security Server Auto-Configuration of the Security Server Return to the main menu Manual Configuration Of The Kerberos Server Editing the Configuration FilesManual Configuration Of The Kerberos Server Krb.conf Krb.conf FormatRealm Sample krb.conf File Reference Krb.realms Krb.realms Format Krb.realms Sample krb.realms Sample krb.realms Chapter Configuring The Primary Server Creating The Principal Database After Installation Administrator Add An Administrative PrincipalTo add an administrative principal using Run Command-Line-Administrator,kadmin Create The host/fqdn principal And Extract Its Service Key Start the Kerberos daemons Define Secondary Server Network Locations Security Policies Password Policy FileAdminaclfile Starting the Security Server Summary Sbin/initd/krbsrv start Copy the Kerberos Configuration File Configuring The Secondary Security ServersCreate the Principal Database Create a host/fqdn Principal and Extract Its Key Administration Administration Administering the Kerberos Database Kadmind Adminaclfile Assigning Administrative Permissions List prinicpal. This is redundant with i or Adding Entries to the adminaclfile How the r/R Modifiers Work Creating Administrative AccountsUsing Restricted Adminsitrator 100 Password Policy File Editing the Default FileDefault Password Policy Settings for the base group Password Policy setting Default102 Principals 104 Adding New Service Principals Adding User PrincipalsReserved Service Principals Chapter 107 Do not remove or modify this principal entry Remove Special Privilege Settings Removing User PrincipalsProtecting Secret Keys Removing Service Principals Kadmin Vs kadminl Administration ToolsAdministration Tools Tool Name Tool Description Administrator Standard Functionality of the Administrator ApplyLocal Administrator kadminlui Usage of kadminluiChapter 117 Principals Tab Principals TabChapter 119 General Tab Principal Information window General Tab Principal Information WindowChapter 121 Adding Principals to the Database To add a principalSame settings To simultaneously add multiple principals withCreating an Administrative Principal To create an administrative principalChapter 125 Search Criteria Finding a PrincipalTo search for a principal Chapter 127 128 Deleting a Principal To delete a user principalLoading Default Values for a Principal To reload the default values for a principalTo restore previously saved values for a principal Restoring Previously Saved Values for a PrincipalChanging Ticket Information To change ticket informationChapter 133 Rules for Setting Maximum Ticket Lifetime ExampleRules for Setting Maximum Renew Time ExamplesChanging Password Information To change the password informationA principal’s password. You must inform the principal Password at their next logonWindow Password Tab Principal InformationPassword Tab Principal Information Window Chapter 139 Change Password window Password tab Change Password Window Password TabChapter 141 Changing Key Types To change a DES principal’s key type to 3DESChapter 143 Changing Principal Attributes To change principal attributesAttributes Tab Principal Information Attributes Tab Principal Information Window146 Chapter 147 148 Chapter 149 Deleting a Service Principal To delete a service principalExtracting Service Keys To securely extract principal keys to the service key152 Extract Service Key Table window Extract Service Key Table Window154 Using Groups to Control Settings To edit the default groupGroup Information window Principal Group Information Window Principal Attributes Setting the Default Group Principal AttributesDefault Principal Attributes Setting Administrative Permissions To set administrative permissionsAdministrative Permissions Administrative PermissionsChapter 161 162 Realms Tab Realms TabRealm Information window Realms tab 10 Realm Information Window Realms TabAdding a Realm To add a realmDeleting a Realm To delete a realmRemote Administrator kadminui 168 Administration Manual Administration Using kadmin Chapter 171 Add a New Principal Add Random KeyDelete a Principal Specify New PasswordChange Password to a New Randomly Generated Password Extract a Principal List the Attributes of a Principal Modifying a PrincipalTo modify the principal admin, you need to do the following Number of Authentication failures fcntKey Version Number Attribute AttributesAllow Postdated Attribute Allow Renewable AttributeAllow Forwardable Attribute Allow Proxy Attribute Require Preauthentication Attribute Allow Duplicate Session Key AttributeRequire Password Change Attribute Allow as Service Attribute Lock Principal AttributeRequire Initial Authentication Attribute FollowingAuthentication Set As Password Change Service Attribute TgtbasedPassword Expiration Attribute Principal Expiration Attribute Maximum Ticket Lifetime AttributeSalt Type Attribute Maximum Renew Time AttributeKey Type Attribute Chapter 189 Principal Database Utilities Principal Database Utilities If you want to Use This ToolCreating the Kerberos Database 192 Database Encryption Database Master Password Destroying the Kerberos Database Dumping the Kerberos Database Loading the Kerberos Database Stashing the Master Key Chapter 199 Situations that require Starting and Stopping Daemons Services Situation Daemons and ServicesStarting and Stopping Daemons Maintenance Tasks Master PasswordProtecting Security Server Secrets Host/fqdn@REALMBacking Up Primary Server Data Special Note on Backing up the Principal DatabaseChapter 203 Removing Unused Space From the Database Chapter 205 206 Propagation 208 Propagation Hierarchy Propagation RelationshipsMaintaining Secret Keys In The Key Table File Service Key Table v5srvtabExtracting a Key to the Service Key Table File Creating a New Service Key Table File Deleting Older Keys From the Service Key Table FilePropagation Tools Propagation Tools If You Want To Use This ToolChapter 213 Kpropd Mkpropcf 216 Kpropd.ini Defaultvalues section SectionsChapter 219 Secsrvname Section Examples All servers contain the following entries222 Prpadmin Setting Up Propagation Chapter 225 226 Chapter 227 228 Monitoring the Log File Critical Error MessagesMonitoring Propagation Monitoring Propagation Queue Files Monitoring for Old File Date and Large File SizePrincipal.ok Time Stamp Does Not Update Comparing the Database to its CopiesAuthentication Problems Occur Administration Appears NormalLog Files Indicate Problems Authentication Tests SucceedNumber of Principals Does Not Match KdbdumpRestarting Propagation Using the Simple Process Restarting Propagation Using the Full Dump Method Propagation FailureConverting a Secondary Server to a Primary Server Restarting Services Cleaning the Temp Directory238 Primary Servers That Support Multiple Realms Configuring for Multi-realm EnterprisesNumber of Realms per Database Database Propagation for Multi-realm Databases Multiple Primary Servers That Support a Single RealmAdding More Realms to a Multi-realm Database To Configure a propagation in a multi-realm environment 242 Inter-realm 244 Two-way Trust Considering Trust RelationshipsOne-way Trust Hierarchical Trust Other Types Of TrustChapter 247 248 Chapter 249 Configuring Direct Trust Relationships Direct Trust Relationship Example Hierarchical Inter-realm Example Hierarchical Inter-realm TrustHierarchical Chain of Trust Hierarchical Inter-realm Configuration 254 Chapter 255 256 Chapter 257 258 Troubleshooting 260 Chapter 261 Characterizing the Problem Chapter 263 Diagnostic Tools Summary Diagnostic ToolsLogging Capabilities Troubleshooting KerberosError Messages Services Checklist Unix Syslog FileTroubleshooting Techniques Table of Errors Messages Chapter 269 270 Locking and Unlocking Accounts General ErrorsForgotten Passwords Clock Synchronization Typical User Error Messages Decrypt integrity check failedAdministrative Error Messages Password has expired while getting initial ticketService key not available while getting initial ticket ActionChapter 275 Reporting Problems to Your Hewlett-Packard Support Contact Chapter 277 278 Glossary Glossary Glossary 281 Ticket-granting-ticket Symbols Index284 285
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