Secure Sockets Layer (SSL) is the predecessor of Transport Layer Security (TLS), and has been deprecated since June 2015. 2020-10-02 13:12:14.918 INFO 13586 --- [           main] o.a.k.c.s.authenticator.AbstractLogin   : Successfully logged in. Apache Kafka example for Java. A path to this file is set in the ssl.keystore.location property. Running locally Generate TLS certificates for all Kafka brokers in your cluster. 2020-10-02 13:12:14.996 INFO 13586 --- [           main] o.a.k.clients.consumer.ConsumerConfig   : ConsumerConfig values: key.deserializer = class org.apache.kafka.common.serialization.StringDeserializer, partition.assignment.strategy = [org.apache.kafka.clients.consumer.RangeAssignor], value.deserializer = class org.apache.kafka.common.serialization.StringDeserializer. The kafka-configs.sh tool can be used to manage them, complete ${kafka-home}/config/server.properties file looks like below, The above command will fails as it do not have create permissions, Similarly give permissions to producer and consumer also, Now from spring-boot application  using camel producer/consumer. After they are configured in JAAS, the SASL mechanisms have to be enabled in the Kafka configuration. Listener without any encryption or authentication. With SSL, only the first and the final machine possess the a… Topics and tasks in this section: Authentication with SASL using JAAS So, we now have a fair understanding of what SASL is and how to use it in Java. Apache Kafka example for Java. Listener without encryption but with SASL-based authentication. I found that I need the following properties setup. The steps below describe how to set up this mechanism on an IOP 4.2.5 Kafka Cluster. It also tells Kafka that we want the brokers to talk to each other using SASL_SSL. This Mechanism is called SASL/PLAIN. Both Data Hubs were created in the same environment. But, typically, that's not what we'll end up using SASL for, at least in our daily routine. Usernames and passwords are stored locally in Kafka configuration. Already that day in a row I have been trying unsuccessfully to configure SASL / SCRAM for Kafka. In this tutorial, you will run a Java client application that produces messages to and consumes messages from an Apache Kafka® cluster. Intro Producers / Consumers help to send / receive message to / from Kafka SASL is used to provide authentication and SSL for encryption JAAS config files are used to read kerberos ticket and authenticate as a part of SASL Kafka Version used in this article :0.9.0.2 Console Producers and Consumers Follow the steps given below… You can take advantage of Azure cloud capacity, cost, and flexibility by implementing Kafka on Azure. Set the ssl.keystore.location option to the path to the JKS keystore with the broker certificate. JAAS uses its own configuration file. The Overflow Blog Making the most of your one-on-one with your manager or other leadership. Encryption solves the problem of the man in the middle (MITM) attack. To enable SCRAM authentication, the JAAS configuration file has to include the following configuration: Sample ${kafka-home}/config/kafka_server_jass.conf file, And in server.properties file enable SASL authentication, Create ssl-user-config.properties in kafka-home/config, User credentials for the SCRAM mechanism are stored in ZooKeeper. Let's suppose we've configured Kafka Broker for SASL with PLAIN as the mechanism of choice. Dependencies. While implementing the custom SASL mechanism, it may makes sense to just use JAAS. In two places, replace {yourSslDirectoryPath} with the absolute path to your kafka-quarkus-java/ssl directory (or wherever you put the SSL files). Opinions expressed by DZone contributors are their own. However, for historical reasons, Kafka (like Java) uses the term/acronym “SSL” instead of “TLS” in configuration and code. public static final java.lang.String SASL_KERBEROS_SERVICE_NAME_DOC See Also: Constant Field Values; SASL_KERBEROS_KINIT_CMD public static final java.lang.String SASL_KERBEROS_KINIT_CMD See Also: Constant Field Values; SASL_KERBEROS_KINIT_CMD_DOC public static final java.lang.String SASL… This topic only uses the acronym “SSL”. AMQ Streams supports encryption and authentication, which is configured as part of the listener configuration. Use the kafka_brokers_sasl property as the list of bootstrap servers. Intro Producers / Consumers help to send / receive message to / from Kafka SASL is used to provide authentication and SSL for encryption JAAS config files are used to read kerberos ticket and authenticate as a part of SASL Kafka Version used in this article :0.9.0.2 Console Producers and Consumers Follow the steps given below… public static final java.lang.String SASL_KERBEROS_SERVICE_NAME_DOC See Also: Constant Field Values; SASL_KERBEROS_KINIT_CMD public static final java.lang.String SASL_KERBEROS_KINIT_CMD See Also: Constant Field Values; SASL_KERBEROS_KINIT_CMD_DOC public static final java.lang.String SASL_KERBEROS_KINIT_CMD_DOC See Also: Constant Field Values We recommend including details for all the hosts listed in the kafka_brokers_sasl property. 2020-10-02 13:12:15.016 WARN 13586 --- [           main] o.a.k.clients.consumer.ConsumerConfig   : The configuration 'specific.avro.reader' was supplied but isn't a known config. Add a JAAS configuration file for each Kafka … I believe that my application.yml is not configure correctly so please advice and help. 1. Add the kafka_2.12 package to your application. SASL authentication is configured using Java Authentication and Authorization Service (JAAS). That’s because your packets, while being routed to your Kafka cluster, travel your network and hop from machines to machines. It can be used for password based login to services ¹. Apache Kafka itself supports SCRAM-SHA-256 and SCRAM-SHA-512. Podcast 281: The story behind Stack Overflow in Russian. Implements authentication against a Kerberos server, The SASL mechanisms are configured via the JAAS configuration file. The recommended location for this file is /opt/kafka/config/jaas.conf. Change ), You are commenting using your Google account. In this usage Kafka is similar to Apache BookKeeper project. Change ), You are commenting using your Facebook account. In our project, there will be two dependencies required: Kafka Dependencies; Logging Dependencies, i.e., … Join the DZone community and get the full member experience. SASL, in its many ways, is supported by Kafka. Example code for connecting to a Apache Kafka cluster and authenticate with SSL_SASL and SCRAM. To easily test this code you can create a free Apacha Kafka instance at https://www.cloudkarafka.com. 2020-10-02 13:12:15.016 INFO 13586 --- [           main] o.a.kafka.common.utils.AppInfoParser     : Kafka version: 2.5.1, 2020-10-02 13:12:15.016 INFO 13586 --- [           main] o.a.kafka.common.utils.AppInfoParser     : Kafka commitId: 0efa8fb0f4c73d92, 2020-10-02 13:12:15.016 INFO 13586 --- [           main] o.a.kafka.common.utils.AppInfoParser     : Kafka startTimeMs: 1601624535016, 2020-10-02 13:12:15.017 INFO 13586 --- [           main] o.a.c.i.e.InternalRouteStartupManager   : Route: route2 started and consuming from: kafka://test-topic, 2020-10-02 13:12:15.017 INFO 13586 --- [mer[test-topic]] o.a.camel.component.kafka.KafkaConsumer : Subscribing test-topic-Thread 0 to topic test-topic, 2020-10-02 13:12:15.018 INFO 13586 --- [mer[test-topic]] o.a.k.clients.consumer.KafkaConsumer     : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Subscribed to topic(s): test-topic, 2020-10-02 13:12:15.020 INFO 13586 --- [           main] o.a.c.impl.engine.AbstractCamelContext   : Total 2 routes, of which 2 are started, 2020-10-02 13:12:15.021 INFO 13586 --- [           main] o.a.c.impl.engine.AbstractCamelContext   : Apache Camel 3.5.0 (camel) started in 0.246 seconds, 2020-10-02 13:12:15.030 INFO 13586 --- [           main] o.a.c.e.kafka.sasl.ssl.Application       : Started Application in 1.721 seconds (JVM running for 1.985), 2020-10-02 13:12:15.034 INFO 13586 --- [extShutdownHook] o.a.c.impl.engine.AbstractCamelContext   : Apache Camel 3.5.0 (camel) is shutting down, 2020-10-02 13:12:15.035 INFO 13586 --- [extShutdownHook] o.a.c.i.engine.DefaultShutdownStrategy   : Starting to graceful shutdown 2 routes (timeout 45 seconds), 2020-10-02 13:12:15.036 INFO 13586 --- [ - ShutdownTask] o.a.camel.component.kafka.KafkaConsumer : Stopping Kafka consumer on topic: test-topic, 2020-10-02 13:12:15.315 INFO 13586 --- [ad | producer-1] org.apache.kafka.clients.Metadata       : [Producer clientId=producer-1] Cluster ID: TIW2NTETQmeyjTIzNCKdIg, 2020-10-02 13:12:15.318 INFO 13586 --- [mer[test-topic]] org.apache.kafka.clients.Metadata       : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Cluster ID: TIW2NTETQmeyjTIzNCKdIg, 2020-10-02 13:12:15.319 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.AbstractCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Discovered group coordinator localhost:9092 (id: 2147483647 rack: null), 2020-10-02 13:12:15.321 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.AbstractCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] (Re-)joining group, 2020-10-02 13:12:15.390 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.AbstractCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Join group failed with org.apache.kafka.common.errors.MemberIdRequiredException: The group member needs to have a valid member id before actually entering a consumer group, 2020-10-02 13:12:15.390 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.AbstractCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] (Re-)joining group, 2020-10-02 13:12:15.394 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.ConsumerCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Finished assignment for group at generation 16: {consumer-test-consumer-group-1-6f265a6e-422f-4651-b442-a48638bcc2ee=Assignment(partitions=[test-topic-0])}, 2020-10-02 13:12:15.398 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.AbstractCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Successfully joined group with generation 16, 2020-10-02 13:12:15.401 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.ConsumerCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Adding newly assigned partitions: test-topic-0, 2020-10-02 13:12:15.411 INFO 13586 --- [mer[test-topic]] o.a.k.c.c.internals.ConsumerCoordinator : [Consumer clientId=consumer-test-consumer-group-1, groupId=test-consumer-group] Setting offset for partition test-topic-0 to the committed offset FetchPosition{offset=10, offsetEpoch=Optional[0], currentLeader=LeaderAndEpoch{leader=Optional[localhost:9092 (id: 0 rack: null)], epoch=0}}, 2020-10-02 13:12:16.081 INFO 13586 --- [cer[test-topic]] route1                                   : Hi This is kafka example, 2020-10-02 13:12:16.082 INFO 13586 --- [mer[test-topic]] route2                                   : Hi This is kafka example, Developer SASL authentication is supported both through plain unencrypted connections as well as through TLS connections. now I am trying to solve some issues about kerberos. Kafka provides low-latency, high-throughput, fault-tolerant publish and subscribe data. The ssl.keystore.password. sasl.jaas,login.context, sasl.jaas.username, sasl.jaas.password etc.) Now, before creating a Kafka producer in java, we need to define the essential Project dependencies. The steps below describe how to set up this mechanism on an IOP 4.2.5 Kafka Cluster. SASL authentication in Kafka supports several different mechanisms: Implements authentication based on username and passwords. when there is some progress, I … You must provide JAAS configurations for all SASL authentication mechanisms. Apache Kafka® brokers support client authentication using SASL. The API supports both client and server applications. Edit the /opt/kafka/config/server.properties Kafka configuration file on all cluster nodes for the following: Download Apache Kafka  and Start Zookeeper, SASL authentication is configured using Java Authentication and Authorization Service (JAAS). This is usually done using a file in the Java Key store (JKS) format. With its own security protocol encryption and authentication, which is configured with its own security protocol - versus. Healthcheck: camel-health our Project, there will be disabled ) a JAAS for... Service which consumes … use Kafka with Java configuration property listener.security.protocal defines which uses... Or click an icon to log in: you are commenting using WordPress.com! Section, we will walk through the steps below describe how to set up this mechanism on IOP... Sasl_Ssl on port 9092 specify the SSL protocol for the listener where you to! Clients can be used for password based login to services ¹. Apache Kafka cluster on username and password in text! ) can not be sent by the client kafka java sasl that produces messages to and consumes messages from Apache. 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