The NATS server provides various ways of authenticating clients:
- Token Authentication
- Username/Password credentials
- TLS Certificate
- NKEY with Challenge
- Decentralized JWT Authentication/Authorization
Authentication deals with allowing a NATS client to connect to the server. Except for JWT authentication, authentication and authorization are configured in the authorization section of the configuration.
The authorization block provides authentication configuration as well as authorization:
| Property | Description |
|---|---|
token |
Specifies a global token that can be used to authenticate to the server (exclusive of user and password) |
user |
Specifies a single global user name for clients to the server (exclusive of token) |
password |
Specifies a single global password for clients to the server (exclusive of token) |
users |
A list of user configuration maps |
timeout |
Maximum number of seconds to wait for client authentication |
For multiple username and password credentials, specify a users list.
A user configuration map specifies credentials and permissions options for a single user:
| Property | Description |
|---|---|
user |
username for client authentication. (Can also be a user for tls authentication) |
password |
password for the user entry |
nkey |
public nkey identifying an user |
permissions |
permissions map configuring subjects accessible to the user |