How to set client authentication for SSL?

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I am running a Spark application and have enabled SSL that clients can connect. I want to the clients who are trying to connect to be authenticated before the connection is completed. How can I do this?
Mar 15 in Apache Spark by Sanjeev
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1 answer to this question.

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By default, this feature is disabled. To enable client authentication, set the authentication property to true. Try this: 

val sc = new SparkContext(new SparkConf())

./bin/spark-submit <all your existing options> --spark.ssl.needClientAuth=true
answered Mar 15 by Karan

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