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The Java driver supports TLS/SSL connections to MongoDB servers using the underlying support for TLS/SSL provided by the JDK. You can configure the driver to use TLS/SSL either with MongoClientURI or with MongoClientOptions.

Specify TLS/SSL via MongoClientURI

import com.mongodb.MongoClientURI;

To specify TLS/SSL with MongoClientURI, specify ssl=true as part of the connection string, as in:

MongoClientURI uri = new MongoClientURI("mongodb://localhost/?ssl=true");
MongoClient mongoClient = new MongoClient(uri);

Specify TLS/SSL via MongoClientOptions

import com.mongodb.MongoClientOptions;

To specify TLS/SSL with with MongoClientOptions, set the sslEnabled property to true, as in:

 MongoClientOptions options = MongoClientOptions.builder().sslEnabled(true).build();
 MongoClient client = new MongoClient("localhost", options);

Disable Hostname Verification

By default, the driver ensures that the hostname included in the server’s SSL certificate(s) matches the hostname(s) provided when constructing a MongoClient(). However, the hostname verification requires a Java 7 JVM, as it relies on additions introduced in Java 7 to the class.

If your application must run on Java 6, or for some other reason you need to disable hostname verification, you must explicitly indicate this in MongoClientOptions using the sslInvalidHostNameAllowed property:


JVM System Properties for TLS/SSL

A typical application will need to set several JVM system properties to ensure that the client is able to validate the TLS/SSL certificate presented by the server:

  • The path to a trust store containing the certificate of the signing authority

  • The password to access this trust store

The trust store is typically created with the keytool command line program provided as part of the JDK. For example:

keytool -importcert -trustcacerts -file <path to certificate authority file>
            -keystore <path to trust store> -storepass <password>

A typical application will also need to set several JVM system properties to ensure that the client presents an TLS/SSL certificate to the MongoDB server:

  • The path to a key store containing the client’s TLS/SSL certificates

  • The password to access this key store

The key store is typically created with the keytool or the openssl command line program.

For more information on configuring a Java application for TLS/SSL, please refer to the JSSE Reference Guide.