Linux Kuriosity

  1. What is the core component of user authentication in mapr ? Ans: Authentication restricts access to a specified set of users. Robust authentication prevents third parties from representing themselves as legitimate users. The core component of user authentication in MapR is the  ticket . A ticket is an object that contains specific information about a user, an expiration time, and a key. Tickets uniquely identify a user and are encrypted to protect their contents. Tickets are used to establish sessions between a user and the cluster. 2. What are the two methods of authenticating a user and generating a ticket ? Ans: MapR supports two methods of authenticating a user and generating a ticket: a username/password pair and Kerberos. Both of these methods are mediated by the  maprlogin  utility. When you authenticate with a username/password pair, the system verifies credentials using Pluggable Authentication Modules (PAM). You can configure the cluster to use...

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