FreeRADIUS InkBridge

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The FreeRADIUS Server

- Introduction
- Concepts
  - General
  - AAA
    - Processing
  - Modules
    - LDAP
      - Authentication
  - Resources
- Reference Documentation
  - Unlang Policy Language
    - Interpreter
    - Keywords
      - break
      - call
      - caller
      - case
      - catch
      - default
      - detach
      - editing
      - else
      - elsif
      - expressions
      - filter
      - foreach
      - group
      - if
      - load-balance
      - limit
      - map
      - parallel
      - redundant-load-balance
      - redundant
      - return
      - subrequest
      - switch
      - timeout
      - transaction
      - try
      - update
    - Local variables
    - Modules
      - Module methods
      - Built-in modules
    - Conditional Expressions
    - Attribute Lists
    - Attribute References
    - Return Codes
  - Data Types
  - Dynamic Expansion
  - Dictionaries
    - ALIAS
    - ATTRIBUTE
    - DEFINE
    - ENUM
    - FLAGS
    - $INCLUDE
    - MEMBER
    - PROTOCOL
    - References
    - STRUCT
    - VALUE
    - VENDOR
    - BEGIN-PROTOCOL
    - END-PROTOCOL
    - BEGIN
    - END
    - BEGIN-VENDOR
    - END-VENDOR
  - Policies
    - Why FreeRADIUS is different
  - "man" pages
    - radclient
    - radiusd
    - radmin
    - radsniff
  - Configuration Files
  - Modules
    - Summary of all modules
    - Authentication
      - CHAP module
      - Digest
      - EAP
      - EAP/Inner
      - IMAP
      - Kerberos
      - LDAP
      - Microsoft CHAP
      - NTLM Auth
      - Pluggable Authentication
      - PAP
      - TOTP
      - Winbind
      - Yubikey
    - Datastore
      - Cache
        
        Cache EAP
        
        Cache TLS Session
      - Client
      - CSV
      - etc_group
      - Files
        
        File Format
      - LDAP
      - OpenDirectory
      - Passwd
        
        Mac2IP
        
        Mac2Vlan
        
        SMBPasswd
      - REDIS
        
        IP Pool
        
        User tracking
      - Rest
      - SQL
        
        Counter
        
        IP-Pool
        
        Redundant
      - Unix
    - Formatting and Conversion
      - Cipher
      - Date
      - Escape
      - JSON
      - Unpack
      - UTF-8
    - Language
      - Exec
        
        Echo Example
      - Lua
      - Perl
      - Python
      - Ruby
    - Logging
      - Linelog
      - Logtee
      - Detail
        
        Example
        
        Logging
    - Policy
      - Always
      - Attr_filter
      - IDN
      - Sometimes
    - Protocol
      - DHCPv4
        
        ISC DHCP
      - RADIUS
        
        CUI
        
        WiMAX
    - Utility
      - Dict
      - SMTP
      - Stats
      - Unbound
  - Virtual Servers
- Howto Guides
  - Installing and upgrading
    - Install from packages
    - Dependencies
    - Build from source
    - Upgrading from v3 to v4
    - Attribute name changes from v3 to v4
    - Building Packages
      - Debian and Ubuntu
      - RedHat and CentOS
  - Modules
  - Protocols
    - DHCP
  - Security Certificates
    - Using LetsEncrypt certificates
  - Vendors
    - Ascend
    - Bay
    - Cisco
    - ProxIM
  - Optimization
- Tutorials
  - New User
  - Matching Users
  - New Client
  - Accounting
    - Simultaneous Use
  - Unlang
  - Proxying
  - EAP
    - EAP-MD5
    - EAP-TTLS
    - EAP-PEAP
    - EAP-TLS
  - SQL
    - SQL Users
  - Variables
  - Dynamic-Translation
  - Module instances
  - Autz-Type
  - Module-Fail-Over
  - Prepaid
  - Dictionary
  - Virtual
  - Radmin
  - Final group project
- Developers
  - Bugs
  - Coding Methods
  - Code Coverage
  - Profiling
  - Semantic Patches
  - Contributing
  - Coverity
  - Module Interface
  - Release Method
  - Buffer handling

The FreeRADIUS Server 4.0.0 Devel

The FreeRADIUS Server
- 4.0.0 Devel
- 4.0~alpha1 Devel
- 3.2.8
- 3.2.7
- 3.2.6
- 3.2.5
- 3.2.4
- 3.2.3
- 3.2.2
- 3.2.1
- 3.2.0
- 3.0.28
- 3.0.27
- 3.0.26
- 3.0.25
- 3.0.24
- 3.0.23
- 3.0.22

The FreeRADIUS Server
Reference Documentation
Virtual Servers
LDAP Sync
TACACS+

4.0.0 Devel 4.0~alpha1 Devel 3.2.8 3.2.7 3.2.6 3.2.5 3.2.4 3.2.3 3.2.2 3.2.1 3.2.0 3.0.28 3.0.27 3.0.26 3.0.25 3.0.24 3.0.23 3.0.22

CC BY-NC

TACACS+

The TACACS+ protocol is largely used for command authorization. FreeRADIUS implements all of the TACACS+ standards.

FreeRADIUS documentation is sponsored by InkBridge Networks and is licensed as CC BY-NC 4.0.

© 2025 InkBridge Networks
and individual contributors

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