Overview of Radiator Server's architecture, request flow, and core components including async processing, protocol servers, policies, handlers, and execution pipelines.

Configuration guide for load balancing across multiple backend servers (RADIUS, LDAP, ...) using Radiator Server's built-in algorithms

How to download and install Radiator

Reference guide for comparison operators used in policy and handler conditions and condition clauses.

Features and keyboard shortcuts for the Management UI configuration editor

How to export and import Radiator configuration packages using the Management UI

Supported data types in Radiator configuration language

Human-readable duration units for timeout and duration configuration values

Variables available during request processing

Executing actions

Transform and modify values in expressions and format strings

Health check endpoints for monitoring server availability and readiness in containerized environments

Guide to deploying Radiator Server in high availability configurations with load balancing, failover strategies, and multi-node architectures

Instance and cluster identifiers for distinguishing nodes and enabling high availability configurations

Authenticate HTTP requests using HTTP Basic Auth

Introduction to configuration

Guide on when and how to create standalone Radiator instances without external dependencies

Describes different log storage and formatting options

Explain the different privilege levels of the Management API and UI

Understanding namespace hierarchies in logging and counters

Secure password storage using cryptographic hashing algorithms

Control flow for pipeline execution

Use cases and patterns for probabilistic pipeline execution

Exposing operational metrics and counters through authenticated HTTP endpoints for Prometheus monitoring

How to configure PROXY protocol v2 support in Radiator Server to preserve original client IP addresses when using load balancers like HAProxy or AWS NLB.

Server startup sequence, recovery mode behavior, and service enable/disable functionality

Hardware resource requirements and performance guidelines for deploying Radiator server at scale

Build and release types for Radiator server binaries

Strategies for implementing rate limiting and request throttling in Radiator Server using Lua scripts and cache-based counters

Comparing counter-based and GCRA rate limiting strategies

AKA Reverse CoA - Send Change of Authorization messages to NAS devices over existing outbound connections.

Generate configuration files from templates using the command line

Command-line RADIUS test utility for sending RADIUS packets

Time-based and HMAC-based One-Time Password authentication

Learn what Radiator is and how it provides AAA services for network infrastructure

AAA policies configuration

Read and write data on external systems

Cache configuration for in-memory data caching and performance optimization

Packet capture configuration for monitoring network traffic

Certificate and private key configuration for TLS/SSL connections

Client configuration for RADIUS authentication and authorization

RADIUS dictionary configuration for defining custom attributes and values

Configuration file inclusion statement for modular configuration management

<description missing>

License configuration

Logging configuration for application and AAA event logging

Management interface configuration for HTTP/HTTPS API access and web UI

Custom Lua scripts configuration for extending AAA processing logic

Server configuration for RADIUS and other servers

Statistics and metrics collection configuration for monitoring and performance analysis

Template statement for reusable configuration fragments and macro expansion

Management UI customisation configuration

Accept action for unconditionally accepting RADIUS requests

All statement for returning reject on first none or reject

Any statement for returning on first accept

Append action for appending new values to attributes

Assert that two expressions are equal during pipeline execution

Backend action for forwarding RADIUS requests to external backends

Challenge action for sending challenge responses in multi-factor authentication

CHAP action for CHAP authentication

Evaluate conditions and accept or reject the request

Copy action for copying attributes in RADIUS pre-proxying and post-proxying handlers

Increment a counter for metrics and monitoring

Debug logging action for outputting variable values and formatted strings to application logs

Discard action for silently dropping RADIUS requests

Each statement for returning with the last return value

<description missing>

Generate an error into the pipeline

Filter action for filtering unwanted attributes in RADIUS pre-proxying and post-proxying handlers

First statement for returning on first accept or reject

HOTP action for HMAC-based One-Time Password authentication

HTTP Basic Authentication action for HTTP server handlers

Conditional execution

Ignore action for continuing pipeline execution without setting a result

Invoke a named pipeline

Log transactions with an AAA logger

map statement for conditional logic

Message action for adding additional information to RADIUS responses

Variable modification block

MSCHAP action for MSCHAP authentication

MSCHAPv2 action for MSCHAPv2 authentication

None statement for returning reject on first accept

PAP action for plaintext password authentication

Reason action for providing additional context to RADIUS responses

Reject action for unconditionally denying RADIUS requests

Control whether pipeline errors result in request rejection

Replace action for replacing existing attributes with new values

Send RADIUS reply immediately without waiting for pipeline completion

Rewrite action for modifying attribute values based on their current value

Set action for assigning values to context attributes

Pause pipeline execution for a specified duration with optional random addition

Probabilistic pipeline execution

Stop action for halting pipeline execution while preserving the current result

TOTP action for Time-based One-Time Password authentication

Enable or disable per-request AAA pipeline tracing

Catch pipeline errors

While statement for returning on first reject (default for all blocks)

Conditional execution block