RADIUS auth method

The radius auth method allows users to authenticate with Vault using an existing RADIUS server that accepts the PAP authentication scheme.

Authentication

The default path is /radius. If this auth method was enabled at a different path, specify -path=/my-path in the CLI.

Via the CLI

$ vault login -method=radius username=sethvargo

Via the API

The default endpoint is auth/radius/login. If this auth method was enabled at a different path, use that value instead of radius.

$ curl \
    --request POST \
    --data '{"password": "..."}' \
    http://127.0.0.1:8200/v1/auth/radius/login/sethvargo

The response will contain a token at auth.client_token:

{
  "auth": {
    "client_token": "c4f280f6-fdb2-18eb-89d3-589e2e834cdb",
    "policies": ["admins"],
    "metadata": {
      "username": "mitchellh"
    }
  }
}

Configuration

Via the CLI

Enable the radius auth method:
```
$ vault auth enable radius
```
Configure connection details for your RADIUS server.
```
$ vault write auth/radius/users/mitchellh policies=admins
```
For the complete list of configuration options, please see the API documentation.
The above creates a new mapping for user "mitchellh" that will be associated with the "admins" policy.
Alternatively, Vault can assign a configurable set of policies to any user that successfully authenticates with the RADIUS server but has no explicit mapping in the users/ path. This is done through the unregistered_user_policies configuration parameter.

API

The RADIUS auth method has a full HTTP API. Please see the RADIUS Auth API for more details.