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DataStax Enterprise 6.8 Security Guide

    • About DSE Advanced Security
    • Security FAQs
    • Security checklists
    • Securing the environment
      • Securing ports
      • Securing the TMP directory
    • Authentication and authorization
      • Configuring authentication and authorization
        • About DSE Unified Authentication
          • Steps for new deployment
          • Steps for production environments
        • Configuring security keyspaces
        • Setting up Kerberos
          • Kerberos guidelines
          • Enabling JCE Unlimited
            • Removing AES-256
          • Preparing DSE nodes for Kerberos
            • DNS and NTP
            • krb5.conf
            • Principal
            • Keytab
        • Enabling authentication and authorization
          • Defining a Kerberos scheme
          • Defining an LDAP scheme
        • Configuring JMX authentication
        • Configuring cache settings
        • Securing schema information
      • Managing database access
        • About RBAC
        • Setting up logins and users
          • Adding a superuser login
          • Adding database users
          • LDAP users and groups
            • LDAP logins
            • LDAP groups
          • Kerberos principal logins
          • Setting up roles for applications
          • Binding a role to an authentication scheme
        • Assigning permissions
          • Database object permissions
            • Data resources
            • Functions and aggregate resources
            • Search indexes
            • Roles
            • Proxy login and execute
            • Authentication schemes
            • DSE Utilities (MBeans)
            • Analytic applications
            • Remote procedure calls
          • Separation of duties
          • Keyspaces and tables
          • Row Level Access Control (RLAC)
          • Search index permissions
          • DataStax Graph keyspace
          • Spark application permissions
          • DataStax Studio permissions
          • Remote procedure calls
          • DSE client-tool spark
          • JMX MBean permissions
          • Deny (denylist) db object permission
          • Restricting access to data
      • Providing credentials from DSE tools
        • About clients
        • Internal and LDAP authentication
          • Command line
          • File
          • Environment variables
          • Using CQLSH
        • Kerberos
          • JAAS configuration file location
          • Keytab
          • Ticket Cache
          • Spark jobs
          • SSTableLoader
          • Graph and gremlin-console
          • dsetool
          • CQLSH
        • Nodetool
        • JConsole
    • Auditing database activity
      • Enabling database auditing
      • Capturing DSE Search HTTP requests
      • Log formats
      • View events from DSE audit table
    • Transparent data encryption
      • About Transparent Data Encryption
      • Configuring local encryption
        • Setting up local encryption keys
        • Encrypting configuration file properties
        • Encrypting system resources
        • Encrypting tables
        • Rekeying existing data
        • Using tools with TDE-encrypted SSTables
        • Troubleshooting encryption key errors
      • Configuring KMIP encryption
      • Encrypting Search indexes
        • Encrypting new Search indexes
        • Encrypting existing Search indexes
        • Tuning encrypted Search indexes
      • Migrating encrypted tables from earlier versions
      • Bulk loading data between TDE-enabled clusters
    • Configuring SSL
      • Steps for configuring SSL
      • Creating SSL certificates, keystores, and truststores
        • Remote keystore provider
        • Local keystore files
      • Securing node-to-node connections
      • Securing client-to-node connections
        • Configuring JMX on the server side
        • nodetool, nodesync, dsetool, and Advanced Replication
        • JConsole (JMX)
        • SSTableloader
        • Connecting to SSL-enabled nodes using cqlsh
      • Enabling SSL encryption for DSEFS
      • Reference: SSL instruction variables
    • Securing Spark connections
  • DataStax Enterprise 6.8 Security Guide
  • Authentication and authorization
  • Configuring authentication and authorization
  • Setting up Kerberos
  • Preparing DSE nodes for Kerberos
  • krb5.conf

Configuring Kerberos Connection Information for Clients

Install Kerberos clients and configure the Kerberos realm and connection details.

Prerequisites

From your organization’s Kerberos administrator, get the krb5.conf configured for domain that contains the DataStax cluster.

Procedure

  1. Install Kerberos client software on each node using one of the following methods:

    • Tarball-based systems:

      wget http://web.mit.edu/Kerberos/dist/krb5/1.17/krb5-1.17.tar.gz
    • RHEL-based systems:

      sudo yum install krb5-workstation krb5-libs krb5-pkinit-openssl
    • Debian-based systems:

      sudo apt-get install krb5-user krb5-config krb5-pkinit
  2. Optional: In the krb5.conf file, verify that the libdefaults settings have Domain Name System (DNS) and realm lookup disabled.

    [libdefaults]
    dns_lookup_kdc = false
    dns_lookup_realm = false

    DataStax recommends not using DNS lookup for Kerberos Key Distribution Center (KDC) and Realm entries. Relying on DNS may negatively impact performance and functionality.

  3. Distribute the configuration file to each node using one of the following methods:

    • Default location - Put the krb5.conf file in the /etc directory.

    • Custom location - When the krb5.conf file is in a location other than the default, provide the location using environment variable KRB5_CONFIG.

      export KRB5_CONFIG="path_to_file"

      Refer to MIT Kerberos documentation for full list of default paths.

DNS and NTP Principal

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