Realm authentication (/realmauth/)

URL: https://[server_name]/api/[api_version]/realmauth/

This end-point is used to validate local, LDAP and RADIUS user credentials based on realm.

User lockout policy can be changed under Authentication > User Account Policies > Lockouts. The policy will be applied as configured.

Behavior of the API

• Either password or token_code needs to be specified.
• If both are specified, password will be validated first, then token_code.
• If only one is specified (either password or token_code), only that credential will be validated.
• If a user doesn't have two-factor authentication configured, validation for that user with any token_code will fail.
• If a user is configured with only FortiToken authentication (password-based authentication is disabled), specifying any password will fail.

Before being able to validate an email token or SMS token, a token code needs to be sent to the user first. Please refer to either /localusers, /ldapusers or /radiususers documentation on how to send the token code.

Supported fields

Field	Display name	Type	Required	Other restrictions
username	Username	string	Yes
realm	Realm	string	Yes
password	Password	string	No
token_code	Security token code	string	No	Supported token authentication: FortiToken, FortiToken Cloud, email token, SMS token.

Allowed fields

Type	Allowed methods	Action
List	POST	Validate user's credentials.

Response codes

In addition to the general codes defined in General API response codes, a POST request to this resource can result in the following return codes:

Code	Response content	Description
200 OK		User is successfully authenticated.
401 Unauthorized	User authentication failed	Credential is incorrect.
401 Unauthorized	Account is disabled	User account is currently disabled.
401 Unauthorized	No token configured	User does not have token-based authentication configured.
401 Unauthorized	Token is out of sync	The security token requires synchronization.
404 Not Found	User does not exist	The given username does not exist in the system.