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= Authentication
:javaFile: {javaCodeDir}/Security.java


== Ignite Authentication


You can enable Ignite Authentication by setting the `authenticationEnabled` property to `true` in the node's configuration.
This type of authentication requires link:persistence/native-persistence[persistent storage] be enabled for at least one data region.

[tabs]
--
tab:XML[]
[source, xml]
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include::code-snippets/xml/ignite-authentication.xml[tags=ignite-config;!discovery, indent=0]
----

tab:Java[]
[source, java]
----
include::{javaFile}[tags=ignite-authentication,indent=0]
----

tab:.NET/C#[]

tab:C++[unsupported]
--

The first node that you start must have authentication enabled.
Upon start-up, Ignite creates a user account with the name "ignite" and password "ignite".
This account is meant to be used to create other user accounts for your needs.
Then simply delete the "ignite" account.

You can manage users using the following SQL commands:

* link:sql-reference/ddl#create-user[CREATE USER]
* link:sql-reference/ddl#alter-user[ALTER USER]
* link:sql-reference/ddl#drop-user[DROP USER]


== Supplying Credentials in Clients

When authentication is configured in the cluster, all client applications must provide user credentials. Refer to the following pages for the information about specific clients:

* link:thin-clients/getting-started-with-thin-clients#authentication[Thin clients]
* link:SQL/JDBC/jdbc-driver#parameters[JDBC driver]
* link:SQL/ODBC/connection-string-dsn#supported-arguments[ODBC driver]
* link:restapi#security[REST API]