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These are refugees from doc_prototype. They can be rendered with the DITA Open Toolkit version 2.3.3 by: /tmp/dita-ot-2.3.3/bin/dita \ -i impala.ditamap \ -f html5 \ -o $(mktemp -d) \ -filter impala_html.ditaval Change-Id: I8861e99adc446f659a04463ca78c79200669484f Reviewed-on: http://gerrit.cloudera.org:8080/5014 Reviewed-by: John Russell <jrussell@cloudera.com> Tested-by: John Russell <jrussell@cloudera.com>
40 lines
1.6 KiB
XML
40 lines
1.6 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept id="authentication">
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<title>Impala Authentication</title>
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<prolog>
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<metadata>
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<data name="Category" value="Security"/>
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<data name="Category" value="Impala"/>
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<data name="Category" value="Authentication"/>
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<data name="Category" value="Administrators"/>
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</metadata>
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</prolog>
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<conbody>
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<p>
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Authentication is the mechanism to ensure that only specified hosts and users can connect to Impala. It also
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verifies that when clients connect to Impala, they are connected to a legitimate server. This feature
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prevents spoofing such as <term>impersonation</term> (setting up a phony client system with the same account
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and group names as a legitimate user) and <term>man-in-the-middle attacks</term> (intercepting application
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requests before they reach Impala and eavesdropping on sensitive information in the requests or the results).
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</p>
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<p>
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Impala supports authentication using either Kerberos or LDAP.
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</p>
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<note conref="../shared/impala_common.xml#common/authentication_vs_authorization"/>
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<p outputclass="toc"/>
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<p>
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Once you are finished setting up authentication, move on to authorization, which involves specifying what
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databases, tables, HDFS directories, and so on can be accessed by particular users when they connect through
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Impala. See <xref href="impala_authorization.xml#authorization"/> for details.
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</p>
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</conbody>
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</concept>
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