Configuring Hive (HiveServer2) to use LDAP or LDAPS for authentication

Configuring Hive to use LDAP: Add the following properties to the hive-site.xml file to set the server authentication mode to LDAP: <property> <name>hive.server2.authentication</name> <value>LDAP</value> </property> <property> <name>hive.server2.authentication.ldap.url</name> <value>LDAP_URL</value> </property> Where LDAP_URL is the access […]


Changing server hostname RHEL7 CentOS7

CentOS 7 supports three types of Hostnames: Static – The static host name is traditional host which can be chosen by the user and is stored in /etc/hostname file. Transient […]


Smartmontools for SCSI devices

Smartmontools for SCSI devices Douglas Gilbert <dgilbert�at�interlog�dot�com> Copyright � 2003, 2004, 2005, 2006 Douglas Gilbert Permission is granted to copy, distribute and/or modify this document under the terms of the […]


RHEL7 & CentOS7 policy based routing

On Redhat or CentOS servers with multiple network interfaces, inbound packets will be sent to the default interface unless policy base routing is defined. Source or Policy based routing allows […]


EdgeRouter usage monitor using vnstat

How much data are you using per month? Many ISPs have improved Internet performance but have imposed strict data caps on customers. Comcast in California charges most residential customers costly […]