Plugin Title Open Hadoop HDFS NameNode Metadata Service
Category Networking
Description Determine if TCP port 8020 for HDFS NameNode metadata service is open to the public.
More Info 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.
AWS Link
Recommended Action Restrict TCP port 8020 to known IP addresses for Hadoop/HDFS.

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