Fengnan Li created HDFS-14327:
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Summary: Support security for DNS resolving
Key: HDFS-14327
URL: https://issues.apache.org/jira/browse/HDFS-14327
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Fengnan Li
Assignee: Fengnan Li
The DNS resolving, clients will get the IP of the servers (NN/Routers) and use
the IP addresses to access the machine. This will fail in secure environment as
Kerberos is using the domain name in the principal so it won't recognize the IP
addresses.
This task is mainly adding a reverse look up on the current basis and get the
domain name after the IP is fetched. After that clients will still use the
domain name to access the servers.
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