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nats.docs/nats_server/auth_intro.md
Alberto Ricart 6cd3bcc24e wip clustering and other auth configurations
2019-05-20 11:52:39 -05:00

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Authentication

The NATS server provides various ways of authenticating clients:

  • Token Authentication
  • Username/Password credentials
  • TLS Certificate
  • NKEY with Challenge
  • JWTs with Challenge

Authentication deals with allowing a NATS client to connect to the server. With the exception of JWT authentication, authentication and authorization configuration is in the authorization block of the configuration.

Authorization Block

The authorization block provides authentication configuration as well as authorization:

Property Description
token Specifies a token that can be used to authenticate to the server
user Specifies a single user name for clients to the server
password Specifies a single password for clients to the server
users A list of user configuration maps
timeout Maximum number of seconds to wait for client authentication

User Configuration Map

A user configuration map specifies credentials and permissions options for a single user:

Property Description
user username for client authentication
password password for the user entry
nkey public nkey identifying an user
permissions permissions map configuring subjects accessible to the user

Permissions Configuration Map

The permissions map specify subjects that can be subscribed to or published by the specified client.