---
name: "radiusd_radius"
section: "8"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/radiusd_radius"
---

# radiusd\_radius(8)

provide authentication from upstream RADIUS servers

## NAME

**radiusd\_radius** – provide authentication from upstream RADIUS servers

## SYNOPSIS

**radiusd\_radius**

## DESCRIPTION

The **radiusd\_radius** utility is executed by [radiusd(8)](/radiusd/8.md) as a module to provide authentication from upstream RADIUS servers.

## CONFIGURATIONS

The **radiusd\_radius** supports the following configuration key and value:

- **server** *address*\[:*port*\]

  Specify the upstream server's address and port. If *port* is omitted, 1812 is used. This configuration can be specified multiple times.

- **secret** *secret*

  Specify the shared secret with the servers. This configuration cannot be omitted.

- **max-tries** *number*

  Specify the maximum number of retransmissions for a server. [radiusd(8)](/radiusd/8.md) will retransmit 2, 6, 14, 22, and 30 seconds after the first transmission and subsequent retransmissions will occur every 8 seconds. If the number of retransmissions per server reaches this value, the current server is marked as “fail”, and the next server is used for subsequent requests. The default value is 3.

- **max-failovers** *number*

  If a positive number is specified, [radiusd(8)](/radiusd/8.md) will failover to the next server when the current server is marked “fail”. This key and value specifies the maximum number of failovers. The default value is 0.

- **request-timeout** *sec*

  Specify the request timeout in seconds. If this value is specified, *max-tries* and *max-failover* will not be used.

## FILES

- */usr/libexec/radiusd/radiusd\_radius*

  “radius” module executable.

## HISTORY

The **radiusd\_radius** module first appeared in OpenBSD 5.8.