Use the following port numbers so that Amazon MSK can communicate with client machines:
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To communicate with brokers in plaintext, use port 9092.
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To communicate with brokers with TLS encryption, use port 9094 for access from within AWS and port 9194 for public access.
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To communicate with brokers with SASL/SCRAM, use port 9096 for access from within AWS and port 9196 for public access.
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To communicate with brokers in a cluster that is set up to use IAM access control, use port 9098 for access from within AWS and port 9198 for public access.
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To communicate with Apache ZooKeeper by using TLS encryption, use port 2182. Apache ZooKeeper nodes use port 2181 by default.
