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Chapter1 Overview of Cisco Secure ACS

CiscoSecure ACS HTML Interface

1-30

Cisco Secure ACS 3.0 for Windows 2000/NT Servers User Guide

78-13751-01, Version 3.0

Contents

Main Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Preface Document Objectives Who Should Read This Guide How This Guide is Organized Page Conventions Used in This Guide Related Documentation Obtaining Documentation World Wide Web Documentation CD-ROM Ordering Documentation Documentation Feedback Obtaining Technical Assistance Cisco.com Technical Assistance Center Cisco TAC Web Site Cisco TAC Escalation Center Page Overview of Cisco Secure ACS The Cisco Secure ACS Paradigm Cisco Secure ACS Specifications System Performance Specifications Cisco Secure ACS Windows Services AAA Server Functions and Concepts Cisco Secure ACS and the AAA Client AAA ProtocolsTACACS+ and RADIUS TACACS+ RADIUS Authentication Authentication Considerations Authentication and User Databases Page Passwords Comparing PAP, CHAP, and ARAP MS-CHAP Basic Password Configurations Advanced Password Configurations Password Aging User-Changeable Passwords Other Authentication-Related Features Authorization Max Sessions Dynamic Usage Quotas Other Authorization-Related Features Accounting Other Accounting-Related Features Administration HTTP Port Allocation for Remote Administrative Sessions Network Device Groups Other Administration-Related Features Cisco Secure ACS HTML Interface About the Cisco Secure ACS HTML Interface HTML Interface Layout Page Uniform Resource Locator for the HTML Interface Network Environments and Remote Administrative Sessions Remote Administrative Sessions and HTTP Proxy Remote Administrative Sessions through Firewalls Remote Administrative Sessions through a NAT Gateway Accessing the HTML Interface Logging Off the HTML Interface Online Help and Online Documentation Using Online Help Using the Online Documentation Page Page Deploying Cisco Secure ACS Basic Deployment Requirements for Cisco Secure ACS System Requirements Hardware Requirements Operating System Requirements Third-Party Software Requirements Network Requirements Basic Deployment Factors for Cisco Secure ACS Network Topology Dial-Up Topology Page Page Wireless Network Page Page Remote Access using VPN I Page Remote Access Policy Security Policy Administrative Access Policy Page Separation of Administrative and General Users Database Number of Users Type of Database Network Speed and Reliability Suggested Deployment Sequence Page Page Page Page Setting Up the Cisco Secure ACS HTML Interface Interface Design Concepts User-to-Group Relationship Per-User or Per-Group Features User Data Configuration Options Defining New User Data Fields Advanced Options Page Setting Advanced Options for the Cisco Secure ACS User Interface Protocol Configuration Options for TACACS+ Page Setting Options for TACACS+ Protocol Configuration Options for RADIUS Page Setting Protocol Configuration Options for (IETF) RADIUS Page Setting Protocol Configuration Options for RADIUS (Cisco IOS/PIX) Setting Protocol Configuration Options for RADIUS (Ascend) Setting Protocol Configuration Options for RADIUS (Cisco VPN 3000) Setting Protocol Configuration Options for RADIUS (Cisco VPN 5000) Setting Protocol Configuration Options for RADIUS (Microsoft) Setting Protocol Configuration Options for RADIUS (Nortel) Setting Protocol Configuration Options for RADIUS (Juniper) Setting Protocol Configuration Options for RADIUS (Cisco BBSM) Setting Up and Managing Network Configuration About Distributed Systems AAA Servers in Distributed Systems Default Distributed System Settings Proxy in Distributed Systems Fallback on Failed Connection Character String Stripping Proxy in an Enterprise Remote Use of Accounting Packets Other Features Enabled by System Distribution AAA Client Configuration Adding and Configuring a AAA Client Page Page Editing an Existing AAA Client Page Deleting a AAA Client AAA Server Configuration Adding and Configuring a AAA Server Page Editing a AAA Server Configuration Page Deleting a AAA Server Network Device Group Configuration Adding a Network Device Group Assigning an Unassigned AAA Client or AAA Server to an NDG Reassigning a AAA Client or AAA Server to an NDG Renaming a Network Device Group Deleting a Network Device Group Proxy Distribution Table Configuration About the Proxy Distribution Table Adding a New Proxy Distribution Table Entry Page Sorting the Character String Match Order of Distribution Entries Editing a Proxy Distribution Table Entry Deleting a Proxy Distribution Table Entry Page Setting Up and Managing Shared Profile Components Downloadable PIX ACLs About Downloadable PIX ACLs Downloadable PIX ACL Configuration Adding a Downloadable PIX ACL Editing a Downloadable PIX ACL Deleting a Downloadable PIX ACL Network Access Restrictions About Network Access Restrictions Shared Network Access Restrictions Configuration Adding a Shared Network Access Restriction Page Editing a Shared Network Access Restriction Page Deleting a Shared Network Access Restriction Command Authorization Sets About Command Authorization Sets About Pattern Matching Command Authorization Sets Configuration Adding a Command Authorization Set Page Editing a Command Authorization Set Deleting a Command Authorization Set Page Setting Up and Managing User Groups User Group Setup Features and Functions Default Group Group TACACS+ Settings Common User Group Settings Enabling VoIP Support for a User Group Setting Default Time of Day Access for a User Group Setting Callback Options for a User Group Setting Network Access Restrictions for a User Group Page Page Page Setting Max Sessions for a User Group Page Setting Usage Quotas for a User Group Page Configuration-specific User Group Settings Page Setting Token Card Settings for a User Group Setting Enable Privilege Options for a User Group Page Enabling Password Aging for the CiscoSecure User Database Varieties of Password Aging Supported by Cisco Secure ACS Password Aging Feature Settings Page Page Page Enabling Password Aging for Users in Windows Databases Setting IP Address Assignment Method for a User Group Assigning a Downloadable PIX ACL to a Group Configuring TACACS+ Settings for a User Group Page Configuring a Shell Command Authorization Set for a User Group Page Configuring a PIX Command Authorization Set for a User Group Page Configuring IETF RADIUS Settings for a User Group Page Configuring Cisco IOS/PIX RADIUS Settings for a User Group Configuring Ascend RADIUS Settings for a User Group Configuring Cisco VPN 3000 Concentrator RADIUS Settings for a User Group Configuring Cisco VPN 5000 Concentrator RADIUS Settings for a User Group Page Configuring Microsoft RADIUS Settings for a User Group Configuring Nortel RADIUS Settings for a User Group Page Configuring Juniper RADIUS Settings for a User Group Configuring Cisco BBSM RADIUS Settings for a User Group Configuring Custom RADIUS VSA Settings for a User Group Page Group Setting Management Listing Users in a User Group Resetting Usage Quota Counters for a User Group Renaming a User Group Saving Changes to User Group Settings Setting Up and Managing User Accounts User Setup Features and Functions About User Databases Basic User Setup Options Adding a Basic User Account Page Setting Supplementary User Information Setting a Separate CHAP/MS-CHAP/ARAP Password Assigning a User to a Group Setting User Callback Option Assigning a User to a Client IP Address Setting Network Access Restrictions for a User Page Page Page Page Setting Max Sessions Options for a User Page Setting User Usage Quotas Options Page Setting Options for User Account Disablement Assigning a PIX ACL to a User Advanced User Authentication Settings TACACS+ Settings (User) Configuring TACACS+ Settings for a User Page Configuring a Shell Command Authorization Set for a User Page Page Configuring a PIX Command Authorization Set for a User Page Configuring the Unknown Service Setting for a User Advanced TACACS+ Settings (User) Setting Enable Privilege Options for a User Page Setting TACACS+ Enable Password Options for a User Setting TACACS+ Outbound Password for a User RADIUS Attributes Setting IETF RADIUS Parameters for a User Setting Cisco IOS/PIX RADIUS Parameters for a User Setting Ascend RADIUS Parameters for a User Page Setting Cisco VPN 3000 Concentrator RADIUS Parameters for a User Setting Cisco VPN 5000 Concentrator RADIUS Parameters for a User Page Setting Microsoft RADIUS Parameters for a User Setting Nortel RADIUS Parameters for a User Page Setting Juniper RADIUS Parameters for a User Setting BBSM RADIUS Parameters for a User Setting Custom RADIUS Attributes for a User Page User Management Listing All Users Finding a User Disabling a User Account Deleting a User Account Resetting User Session Quota Counters Resetting a User Account after Login Failure Saving User Settings Establishing Cisco Secure ACS System Configuration Service Control Determining the Status of Cisco Secure ACS Services Stopping, Starting, or Restarting Services Logging Date Format Control Setting the Date Format Password Validation Setting Password Validation Options CiscoSecure Database Replication About CiscoSecure Database Replication Page Replication Process Page Replication Frequency Important Implementation Considerations Database Replication Versus Database Backup Database Replication Logging Replication Options Replication Components Options Replication Scheduling Options Replication Partners Options Implementing Primary and Secondary Replication Setups on Cisco Secure ACS Servers Configuring a Secondary Cisco Secure ACS Server Replicating Immediately Page Scheduling Replication Page Page Disabling CiscoSecure Database Replication Database Replication Event Error Alert Notification RDBMS Synchronization About RDBMS Synchronization RDBMS Synchronization Components About CSDBSync About the accountActions Table Page Cisco Secure ACS Database Recovery Using the accountActions Table Reports and Event (Error) Handling Preparing to Use RDBMS Synchronization Considerations for Using CSV-Based Synchronization Preparing for CSV-Based Synchronization Configuring a System Data Source Name for RDBMS Synchronization RDBMS Synchronization Options RDBMS Setup Options Synchronization Scheduling Options Synchronization Partners Options Performing RDBMS Synchronization Immediately Page Scheduling RDBMS Synchronization Page Disabling Scheduled RDBMS Synchronizations Cisco Secure ACS Backup About Cisco Secure ACS Backup Backup File Locations Directory Management Components Backed Up Reports of Cisco Secure ACS Backups Performing a Manual Cisco Secure ACS Backup Scheduling Cisco Secure ACS Backups Disabling Scheduled Cisco Secure ACS Backups Cisco Secure ACS System Restore About Cisco Secure ACS System Restore Backup File Names and Locations Page Components Restored Reports of Cisco Secure ACS Restorations Restoring Cisco Secure ACS from a Backup File Cisco Secure ACS Active Service Management System Monitoring System Monitoring Options Setting Up System Monitoring Event Logging Setting Up Event Logging IP Pools Server Allowing Overlapping IP Pools or Forcing Unique Pool Address Ranges Page Refreshing the AAA Server IP Pools Table Adding a New IP Pool Editing an IP Pool Definition Resetting an IP Pool Deleting an IP Pool IP Pools Address Recovery Enabling IP Pool Address Recovery VoIP Accounting Configuration Configuring VoIP Accounting Cisco Secure ACS Certificate Setup Background on Certification EAP-TLS Setup Overview Requirements for Certificate Enrollment Generating a Request for a Certificate Page Installing Cisco Secure ACS Certification with Manual Enrollment Page Installing Cisco Secure ACS Certification with Automatic Enrollment Performing Cisco Secure ACS Certification Update or Replacement Certification Authority Setup Trust Requirements and Models Editing the Certificate Trust List Adding a New CA Certificate to Local Certificate Storage Global Authentication Setup Page Working with Logging and Reports Logging Formats Special Logging Attributes Update Packets In Accounting Logs About Cisco Secure ACS Logs and Reports Accounting Logs TACACS+ Accounting Log TACACS+ Administration Log RADIUS Accounting Log VoIP Accounting Log Failed Attempts Log Passed Authentications Log Dynamic Cisco Secure ACS Administration Reports Logged-In Users Report Viewing the Logged-in Users Report Deleting Logged-in Users Page Disabled Accounts Report Viewing the Disabled Accounts Report Cisco Secure ACS System Logs ACS Backup and Restore Log RDBMS Synchronization Log Database Replication Log Administration Audit Log Configuring the Administration Audit Log ACS Service Monitoring Log Working with CSV Logs CSV Log File Names Enabling or Disabling a CSV Log Viewing a CSV Report Page Configuring a CSV Log Page Page Working with ODBC Logs Preparing to Use ODBC Logging Configuring a System Data Source Name for ODBC Logging Configuring an ODBC Log Page Remote Logging About Remote Logging Remote Logging Options Configuring a Central Logging Server Enabling and Configuring Remote Logging Disabling Remote Logging Service Logs Services Logged Configuring Service Logs Page Page Page Setting Up and Managing Administrators and Policy Administrator Accounts Administrator Privileges Page Page Page Adding an Administrator Account Editing an Administrator Account Page Deleting an Administrator Account Access Policy Access Policy Options Page Setting Up Access Policy Session Policy Session Policy Options Setting Up Session Policy Page Page Working with User Databases CiscoSecure User Database Page About External User Databases Authenticating with External User Databases Windows NT/2000 User Database The Cisco Secure ACS Authentication Process with Windows NT/2000 User Databases Trust Relationships Windows Dial-up Networking Clients About the Windows NT/2000 Dial-up Networking Client About the Windows 95/98/Millennium Edition Dial-up Networking Client Windows NT/2000 Authentication Page User-Changeable Passwords with Windows NT/2000 User Databases Preparing Users for Authenticating with Windows NT/2000 Configuring a Windows NT/2000 External User Database Generic LDAP Cisco Secure ACS Authentication Process with a Generic LDAP User Database Multiple LDAP Instances LDAP Organizational Units and Groups Directed Authentications LDAP Failover Successful Previous Authentication with the Primary LDAP Server Unsuccessful Previous Authentication with the Primary LDAP Server Configuring a Generic LDAP External User Database Page Page Page Page Novell NDS Database User Contexts Page Novell NDS External User Database Options Configuring a Novell NDS External User Database Page ODBC Database Cisco Secure ACS Authentication Process with an ODBC External User Database Preparing to Authenticate Users with an ODBC-Compliant Relational Database Implementation of Stored Procedures for ODBC Authentication Type Definitions Microsoft SQL Server and Case-Sensitive Passwords Sample Routine for Generating a PAP Authentication SQL Procedure Sample Routine for Generating an SQL CHAP Authentication Procedure PAP Authentication Procedure Input PAP Procedure Output CHAP/MS-CHAP/ARAP Authentication Procedure Input CHAP/MS-CHAP/ARAP Procedure Output Result Codes CSNTerror- String String CSNTpass- word String Configuring a System Data Source Name for an ODBC External User Database Configuring an ODBC External User Database Page Page LEAP Proxy RADIUS Server Database Configuring a LEAP Proxy RADIUS Server External User Database Page Token Server User Databases About Token Servers and Cisco Secure ACS Token Servers and ISDN RADIUS-Enabled Token Servers About RADIUS-Enabled Token Servers Token Server RADIUS Authentication Request and Response Contents Configuring a RADIUS Token Server External User Database Page Page Token Servers with Vendor-Proprietary Interfaces About Token Servers with Proprietary Interfaces Configuring a SafeWord Token Server External User Database Page Configuring an AXENT Token Server External User Database AXENT Configuring an RSA SecurID Token Server External User Database Page Deleting an External User Database Configuration Page Page Administering External User Databases Unknown User Processing Known, Unknown, and Cached Users General Authentication Request Handling and Rejection Mode Authentication Request Handling and Rejection Mode with the Windows NT/2000 User Database Windows Authentication with a Domain Specified Windows Authentication with Domain Omitted Performance of Unknown User Authentication Added Latency Authentication Timeout Value on AAA clients Network Access Authorization Unknown User Policy Database Search Order Configuring the Unknown User Policy Turning off External User Database Authentication Database Group Mappings Group Mapping by External User Database Page Page Group Mapping by Group Set Membership Group Mapping Order No Access Group for Group Set Mappings Default Group Mapping for Windows NT/2000 Creating a Cisco Secure ACS Group Mapping for Windows NT/2000, Novell NDS, or Generic LDAP Groups Page Editing a Windows NT/2000, Novell NDS, or Generic LDAP Group Set Mapping Deleting a Windows NT/2000, Novell NDS, or Generic LDAP Group Set Mapping Deleting a Windows NT/2000 Domain Group Mapping Configuration Changing Group Set Mapping Order RADIUS-Based Group Specification Page A Administration Issues Browser Issues Cisco IOS Issues Database Issues Dial-in Connection Issues Page Page Page Page Debug Issues Proxy Issues Installation and Upgrade Issues MaxSessions Issues Report Issues Third-Party Server Issues Condition Recovery Action PIX Firewall Issues User Authentication Issues Page TACACS+ and RADIUS Attribute Issues B System Messages Windows NT/2000 Event Log Service Startup Errors System Monitored Events Page Page Page Replication Messages Page Page Failed Attempts Messages Page C TACACS+ Attribute-Value Pairs Cisco IOS Attribute-Value Pair Dictionary TACACS+ AV Pairs Page TACACS+ Accounting AV Pairs Page Page D RADIUS Attributes Cisco IOS Dictionary of RADIUS AV Pairs Page Cisco IOS/PIX Dictionary of RADIUS VSAs Page Cisco VPN 3000 Concentrator Dictionary of RADIUS VSAs Page Page Cisco VPN 5000 Concentrator Dictionary of RADIUS VSAs Cisco Building Broadband Service Manager Dictionary of RADIUS VSA Vendor-Proprietary IETF RADIUS AV Pairs Page IETF Dictionary of RADIUS AV Pairs Page Page Page RADIUS (IETF) Accounting AV Pairs Page Microsoft MPPE Dictionary of RADIUS VSAs Page Page Ascend Dictionary of RADIUS AV Pairs Page Page Page Page Page Page Page Nortel Dictionary of RADIUS VSAs Juniper Dictionary of RADIUS VSAs E Cisco Secure ACS Command-Line Database Utility Location of CSUtil.exe and Related Files CSUtil.exe Syntax CSUtil.exe Options Page Backing Up Cisco Secure ACS with CSUtil.exe Restoring Cisco Secure ACS with CSUtil.exe Creating a CiscoSecure User Database Page Creating a Cisco Secure ACS Database Dump File Loading the Cisco Secure ACS Database from a Dump File Compacting the CiscoSecure User Database Page User and AAA Client Import Option Importing User and AAA Client Information Page User and AAA Client Import File Format About User and AAA Client Import File Format ONLINE or OFFLINE Statement ADD Statements Page UPDATE Statements Page DELETE Statements ADD_NAS Statements Page DEL_NAS Statements Import File Examples Exporting User List to a Text File Exporting Group Information to a Text File Exporting Registry Information to a Text File Decoding Error Numbers Recalculating CRC Values User-Defined RADIUS Vendors and VSA Sets About User-Defined RADIUS Vendors and VSA Sets Adding a Custom RADIUS Vendor and VSA Set Deleting a Custom RADIUS Vendor and VSA Set Listing Custom RADIUS Vendors RADIUS Vendor/VSA Import File About the RADIUS Vendor/VSA Import File Vendor and VSA Set Definition Attribute Definition Enumeration Definition Page E-37 Example RADIUS Vendor/VSA Import File Page F Cisco Secure ACS and Virtual Private Dial-up Networks VPDN Process Page Page Page Page F-6 G ODBC Import Definitions accountActions Table Specification accountActions Table Format accountActions Table Mandatory Fields accountActions Table Processing Order Action Codes Action Codes for Setting and Deleting Values Page Action Codes for Creating and Modifying User Accounts Page Page Page Page Page Page Page Action Codes for Initializing and Modifying Access Filters Page Page Page Page Action Codes for Modifying TACACS+ and RADIUS Group and User Settings Page Page Page Page Page Page Action Codes for Modifying Network Configuration Page Page Page Action Code for Deleting the CiscoSecure User Database Cisco Secure ACS Attributes and Action Codes User-Specific Attributes Page Page User-Defined Attributes Group-Specific Attributes Page An Example accountActions Table Page Page H Cisco Secure ACS Internal Architecture Windows NT/2000 Environment Overview Windows NT/2000 Services Windows NT/2000 Registry Cisco Secure ACS Web Server CSAdmin CSAuth Page Page CSDBSync CSLog CSMon Monitoring Page Recording Sample Scripts Configuration CSTacacs and CSRadius Page INDEX A Page B C Page D Page E F G H I L M N O P Q R Page Page Page S T Page U V W

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