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limitations under the License. See accompanying LICENSE file.
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-->
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-* [Hadoop in Secure Mode](#Hadoop_in_Secure_Mode)
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- * [Introduction](#Introduction)
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- * [Authentication](#Authentication)
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- * [End User Accounts](#End_User_Accounts)
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- * [User Accounts for Hadoop Daemons](#User_Accounts_for_Hadoop_Daemons)
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- * [Kerberos principals for Hadoop Daemons](#Kerberos_principals_for_Hadoop_Daemons)
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- * [Mapping from Kerberos principals to OS user accounts](#Mapping_from_Kerberos_principals_to_OS_user_accounts)
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- * [Mapping from user to group](#Mapping_from_user_to_group)
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- * [Proxy user](#Proxy_user)
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- * [Secure DataNode](#Secure_DataNode)
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- * [Data confidentiality](#Data_confidentiality)
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- * [Data Encryption on RPC](#Data_Encryption_on_RPC)
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- * [Data Encryption on Block data transfer.](#Data_Encryption_on_Block_data_transfer.)
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- * [Data Encryption on HTTP](#Data_Encryption_on_HTTP)
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- * [Configuration](#Configuration)
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- * [Permissions for both HDFS and local fileSystem paths](#Permissions_for_both_HDFS_and_local_fileSystem_paths)
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- * [Common Configurations](#Common_Configurations)
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- * [NameNode](#NameNode)
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- * [Secondary NameNode](#Secondary_NameNode)
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- * [JournalNode](#JournalNode)
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- * [DataNode](#DataNode)
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- * [WebHDFS](#WebHDFS)
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- * [ResourceManager](#ResourceManager)
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- * [NodeManager](#NodeManager)
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- * [Configuration for WebAppProxy](#Configuration_for_WebAppProxy)
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- * [LinuxContainerExecutor](#LinuxContainerExecutor)
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- * [MapReduce JobHistory Server](#MapReduce_JobHistory_Server)
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- * [Multihoming](#Multihoming)
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- * [References](#References)
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-
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Hadoop in Secure Mode
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=====================
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+<!-- MACRO{toc|fromDepth=0|toDepth=3} -->
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+
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Introduction
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------------
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