Book Image

Securing Hadoop

By : Sudheesh Narayan
Book Image

Securing Hadoop

By: Sudheesh Narayan

Overview of this book

Security of Big Data is one of the biggest concerns for enterprises today. How do we protect the sensitive information in a Hadoop ecosystem? How can we integrate Hadoop security with existing enterprise security systems? What are the challenges in securing Hadoop and its ecosystem? These are the questions which need to be answered in order to ensure effective management of Big Data. Hadoop, along with Kerberos, provides security features which enable Big Data management and which keep data secure. This book is a practitioner's guide for securing a Hadoop-based Big Data platform. This book provides you with a step-by-step approach to implementing end-to-end security along with a solid foundation of knowledge of the Hadoop and Kerberos security models. This practical, hands-on guide looks at the security challenges involved in securing sensitive data in a Hadoop-based Big Data platform and also covers the Security Reference Architecture for securing Big Data. It will take you through the internals of the Hadoop and Kerberos security models and will provide detailed implementation steps for securing Hadoop. You will also learn how the internals of the Hadoop security model are implemented, how to integrate Enterprise Security Systems with Hadoop security, and how you can manage and control user access to a Hadoop ecosystem seamlessly. You will also get acquainted with implementing audit logging and security incident monitoring within a Big Data platform.
Table of Contents (15 chapters)
Securing Hadoop
About the Author
About the Reviewers

Chapter 3. Setting Up a Secured Hadoop Cluster

In Chapter 2, Hadoop Security Design, we looked at the internals of Hadoop security design and enabled ourselves to set up a secured Hadoop cluster. In this chapter, we will look at how to set up a Kerberos authentication and then get into the details of how to set up and configure a secure Hadoop cluster.

To set up a secured Hadoop cluster, we need to set up Kerberos authentication on the nodes. Kerberos authentication requires reverse DNS lookup to work on all the nodes as it uses the hostname to resolve the principal name. Once Kerberos is installed and configured, we set up the Hadoop service principals and all user principals. After that, we update the Hadoop configurations to enable Kerberos authentication on all nodes and start the Hadoop cluster.

These are the topics we'll be covering in this chapter:

  • Prerequisites for setting up a secure Hadoop cluster

  • Setting up Kerberos

  • Configuring Hadoop with Kerberos authentication

  • Configuring Hadoop...