Tableau Desktop connect to Cloudera Hadoop using Kerberos

Reference: The basic steps to connect Tableau to Cloudera Hive or Impala with Kerberos authentication involves the following steps: [Note: Step 1,2,3,4 are not needed if your hadoop cluster uses Active Directory kerberos instead of MIT kerberos as the ticket is automatically generated by AD.] Download and Install the MIT Kerberos Client for WindowSet … Continue reading Tableau Desktop connect to Cloudera Hadoop using Kerberos

Kerberos commands

Common Kerberos commands: 1.Change password of a principal(user) $ kadmin.local kadmin.local: cpw <principalname> Enter password for princal "principalname@REALM.COM": 2.initialize a kerberos ticket $ kinit <principalname> To get detailed verbose info use below options: $ KRB5_TRACE=/dev/stdout kinit -V 3. Destroy the current ticket: $ kdestroy 4. Check the status of Kerberos KDC $ systemctl status kadmin $ systemctl … Continue reading Kerberos commands

Access webhdfs using Kerberos from laptop client

The following blog shows how to access a kerberized hadoop cluster from a Chrome browser in laptop. This will work mostly except change the below: 3. network.negotiate-auth.gsslib = C:\Program Files\MIT\Kerberos\bin\gssapi64.dll instead of the gssapi32.dll  since we mostly use 64-bit Firefox which doesnt work with the 32bit dll.    

Install Windows Server 2012R2 using Virtualbox VHD

This blog will show how to download Windows Server 2012R2 180days evaluation and create a VM using Virtualbox VHD. Reference: First download the VHD file from Microsoft website. Make sure to select the VHD option: NOTE: Once you use this VHD file to create a VM then this file cannot be used again … Continue reading Install Windows Server 2012R2 using Virtualbox VHD