75 lines
5.2 KiB
Markdown
75 lines
5.2 KiB
Markdown
<div align=center>
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</div>
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# Kyuubi Authentication Mechanism
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In a secure cluster, services should be able to identify and authenticate callers.
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As the fact that the user claims does not necessarily mean this is true.
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The authentication process of Kyuubi is used to verify the user identity that a client used to talk to the Kyuubi server.
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Once done, a trusted connection will be set up between the client and server if successful; otherwise, rejected.
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**Note** that, this authentication only authenticate whether a user can connect with Kyuubi server or not.
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For other secured services that this user wants to interact with, he/she also needs to pass the authentication process of each service, for instance, Hive Metastore, YARN, HDFS.
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In `$KYUUBI_HOME/conf/kyuubi-defaults.conf`, specify `kyuubi.authentication` to one of the authentication types listing below.
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Key | Default | Meaning | Since
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--- | --- | --- | ---
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kyuubi\.authentication|<div style='width: 80pt;word-wrap: break-word;white-space: normal'>NONE</div>|<div style='width: 200pt;word-wrap: break-word;white-space: normal'>Client authentication types.<ul> <li>NOSASL: raw transport.</li> <li>NONE: no authentication check.</li> <li>KERBEROS: Kerberos/GSSAPI authentication.</li> <li>LDAP: Lightweight Directory Access Protocol authentication.</li></ul></div>|<div style='width: 20pt'>1.0.0</div>
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Key | Default | Meaning | Since
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--- | --- | --- | ---
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kyuubi\.authentication|<div style='width: 80pt;word-wrap: break-word;white-space: normal'>NONE</div>|<div style='width: 200pt;word-wrap: break-word;white-space: normal'>Client authentication types.<ul> <li>NOSASL: raw transport.</li> <li>NONE: no authentication check.</li> <li>KERBEROS: Kerberos/GSSAPI authentication.</li> <li>LDAP: Lightweight Directory Access Protocol authentication.</li></ul></div>|<div style='width: 20pt'>1.0.0</div>
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kyuubi\.authentication<br>\.ldap\.base\.dn|<div style='width: 80pt;word-wrap: break-word;white-space: normal'><undefined></div>|<div style='width: 200pt;word-wrap: break-word;white-space: normal'>LDAP base DN.</div>|<div style='width: 20pt'>1.0.0</div>
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kyuubi\.authentication<br>\.ldap\.domain|<div style='width: 80pt;word-wrap: break-word;white-space: normal'><undefined></div>|<div style='width: 200pt;word-wrap: break-word;white-space: normal'>LDAP base DN.</div>|<div style='width: 20pt'>1.0.0</div>
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kyuubi\.authentication<br>\.ldap\.url|<div style='width: 80pt;word-wrap: break-word;white-space: normal'><undefined></div>|<div style='width: 200pt;word-wrap: break-word;white-space: normal'>SPACE character separated LDAP connection URL(s).</div>|<div style='width: 20pt'>1.0.0</div>
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kyuubi\.authentication<br>\.sasl\.qop|<div style='width: 80pt;word-wrap: break-word;white-space: normal'>auth</div>|<div style='width: 200pt;word-wrap: break-word;white-space: normal'>Sasl QOP enable higher levels of protection for Kyuubi communication with clients.<ul> <li>auth - authentication only (default)</li> <li>auth-int - authentication plus integrity protection</li> <li>auth-conf - authentication plus integrity and confidentiality protection. This is applicable only if Kyuubi is configured to use Kerberos authentication.</li> </ul></div>|<div style='width: 20pt'>1.0.0</div>
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#### Using KERBEROS
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If you are deploying Kyuubi with a kerberized Hadoop cluster, it is strongly recommended that `kyuubi.authentication` should be set to `KERBEROS` too.
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Kerberos is a network authentication protocol that provides the tools of authentication and strong cryptography over the network.
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The Kerberos protocol uses strong cryptography so that a client or a server can prove its identity to its server or client across an insecure network connection.
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After a client and server have used Kerberos to prove their identity, they can also encrypt all of their communications to assure privacy and data integrity as they go about their business.
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The Kerberos architecture is centered around a trusted authentication service called the key distribution center, or KDC.
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Users and services in a Kerberos environment are referred to as principals;
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each principal shares a secret, such as a password, with the KDC.
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Set following for KERBEROS mode:
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Key | Default | Meaning | Since
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--- | --- | --- | ---
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kyuubi\.kinit<br>\.principal|<div style='width: 80pt;word-wrap: break-word;white-space: normal'><undefined></div>|<div style='width: 200pt;word-wrap: break-word;white-space: normal'>Name of the Kerberos principal.</div>|<div style='width: 20pt'>1.0.0</div>
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kyuubi\.kinit\.keytab|<div style='width: 80pt;word-wrap: break-word;white-space: normal'><undefined></div>|<div style='width: 200pt;word-wrap: break-word;white-space: normal'>Location of Kyuubi server's keytab.</div>|<div style='width: 20pt'>1.0.0</div>
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For example,
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- Configure with Kyuubi service principal
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```bash
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kyuubi.authentication=KERBEROS
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kyuubi.kinit.principal=spark/kyuubi.apache.org@KYUUBI.APACHE.ORG
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kyuubi.kinit.keytab=/path/to/kyuuib.keytab
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```
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- Start Kyuubi
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```bash
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$ ./bin/kyuubi start
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```
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- Kinit with user principal and connect using beeline
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```bash
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$ kinit -kt user.keytab user.principal
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$ beeline -u "jdbc:hive2://localhost:10009/;principal=spark/kyuubi.apache.org@KYUUBI.APACHE.ORG"
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```
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