security in Hadoop cluster

 

generally , in company securiy reveal aground  following three thing

1) Authentication  : Authentication  can be done by any of the  following 

     a) MIT KDC

     b) Active Directory

     c) Red HatIPA 

2)  Authorization :     Authorization  done by follwing ways

    a)    Linux Posix Permission 

    b)    Extended ACL'S

    c)    Sticky Bit

    d)   Sentry

3) Encryption : Encryption is another common solution used to secure data both at rest and in motion

 

 for at rest     : We Create an Encryption Zone 

 for in motion: We Install an SSL/TLS Certificate.

 following some of the screenshot to give clue of how to secure cluster.