Securing HTTP

This document describes how to configure Ozone HTTP web-consoles to require user authentication.

Default authentication

By default Ozone HTTP web-consoles (OM, SCM, S3G, Recon, Datanode) allow access without authentication based on the following default configurations.

Property	Value
ozone.security.http.kerberos.enabled	false
ozone.http.filter.initializers

If you have an SPNEGO enabled Ozone cluster and want to disable it for all Ozone services, just make sure the two key mentioned are configured as above.

Kerberos based SPNEGO authentication

However, they can be configured to require Kerberos authentication using HTTP SPNEGO protocol (supported by browsers like Firefox and Chrome). To achieve that, the following keys must be configured first.

Property	Value
hadoop.security.authentication	kerberos
ozone.security.http.kerberos.enabled	true
ozone.http.filter.initializers	org.apache.hadoop.security.AuthenticationFilterInitializer

After that, individual component needs to configure properly to completely enable SPNEGO or SIMPLE authentication.

Enable SPNEGO authentication for OM HTTP

Property	Value
ozone.om.http.auth.type	kerberos
ozone.om.http.auth.kerberos.principal	HTTP/_HOST@REALM
ozone.om.http.auth.kerberos.keytab	/path/to/HTTP.keytab

Enable SPNEGO authentication for S3G HTTP

Property	Value
ozone.s3g.http.auth.type	kerberos
ozone.s3g.http.auth.kerberos.principal	HTTP/_HOST@REALM
ozone.s3g.http.auth.kerberos.keytab	/path/to/HTTP.keytab

Enable SPNEGO authentication for RECON HTTP

Property	Value
ozone.recon.http.auth.type	kerberos
ozone.recon.http.auth.kerberos.principal	HTTP/_HOST@REALM
ozone.recon.http.auth.kerberos.keytab	/path/to/HTTP.keytab

Enable SPNEGO authentication for SCM HTTP

Property	Value
hdds.scm.http.auth.type	kerberos
hdds.scm.http.auth.kerberos.principal	HTTP/_HOST@REALM
hdds.scm.http.auth.kerberos.keytab	/path/to/HTTP.keytab

Enable SPNEGO authentication for DATANODE HTTP

Property	Value
hdds.datanode.http.auth.type	kerberos
hdds.datanode.http.auth.kerberos.principal	HTTP/_HOST@REALM
hdds.datanode.http.auth.kerberos.keytab	/path/to/HTTP.keytab

Note: Ozone datanode does not have a default webpage, which prevents you from accessing “/” or “/index.html”. But it does provide standard servlet like jmx/conf/jstack via HTTP.

In addition, Ozone HTTP web-console support the equivalent of Hadoop’s Pseudo/Simple authentication. If this option is enabled, the user name must be specified in the first browser interaction using the user.name query string parameter. e.g., http://scm:9876/?user.name=scmadmin.

Enable SIMPLE authentication for OM HTTP

Property	Value
ozone.om.http.auth.type	simple
ozone.om.http.auth.simple.anonymous_allowed	false

If you don’t want to specify the user.name in the query string parameter, change ozone.om.http.auth.simple.anonymous_allowed to true.

Enable SIMPLE authentication for S3G HTTP

Property	Value
ozone.s3g.http.auth.type	simple
ozone.s3g.http.auth.simple.anonymous_allowed	false

If you don’t want to specify the user.name in the query string parameter, change ozone.s3g.http.auth.simple.anonymous_allowed to true.

Enable SIMPLE authentication for RECON HTTP

Property	Value
ozone.recon.http.auth.type	simple
ozone.recon.http.auth.simple.anonymous_allowed	false

If you don’t want to specify the user.name in the query string parameter, change ozone.recon.http.auth.simple.anonymous_allowed to true.

Enable SIMPLE authentication for SCM HTTP

Property	Value
hdds.scm.http.auth.type	simple
hdds.scm.http.auth.simple.anonymous_allowed	false

If you don’t want to specify the user.name in the query string parameter, change hdds.scm.http.auth.simple.anonymous_allowed to true.

Enable SIMPLE authentication for DATANODE HTTP

Property	Value
hdds.datanode.http.auth.type	simple
hdds.datanode.http.auth.simple.anonymous_allowed	false

If you don’t want to specify the user.name in the query string parameter, change hdds.datanode.http.auth.simple.anonymous_allowed to true.

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