AWS > EC2 >

Open Hadoop HDFS NameNode Metadata Service

HIGH

Source

CloudSploit

open-hadoop-hdfs-namenode-metadata-service

management console

Open Hadoop HDFS NameNode Metadata Service

Determine if TCP port 8020 for HDFS NameNode metadata service is open to the public

While some ports such as HTTP and HTTPS are required to be open to the public to function properly, more sensitive services such as Hadoop/HDFS should be restricted to known IP addresses.

Recommended Actions

Restrict TCP port 8020 to known IP addresses for Hadoop/HDFS

Links

http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-access-to-an-instance.html

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