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posting from linux testq

juju this is aopost from linux desktop

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INSTALLING HADOOP,HIVE,DERBY ON CENTOS

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Please subscribe to my site www.jamesjara.com to get more tutorials. INSTALLING HADOOP IN centos 6 INSTALLING HIVE IN centos 6 INSTALLING DERBY IN centos 6 hadoop-0.20.203.0rc1 this is the guide for the installation of Hadoop ecosystem, is very extended so please follow step by step ====INSTALLATION===== 1. Installing java     yum  install sun-java6-jdk 2.Adding a dedicated user for hadoop This will add the user hdoopuser and the group hdoopgroup to your local machine.     /usr/sbin/useradd hdoopuser     groupadd hdoopgroup     usermod -a -G hdoopgroup hdoopuser 3.Configuring SSH     su - hdoopuser        #login as hdoopuser     ssh-keygen -t rsa -P ""    #generate key without password     cat $HOME/.ssh/id_rsa.pub >> $HOME/.ssh/authorized_keys    #enable the new key     chmod 0600 $HOME/.ssh/a...
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Accounting Utilities Linux

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Connect Accounting Utilities Here is a list of commands you can use to get data about user logins: who         Shows a listing of currently logged-in users. w           Shows who is logged on and what they are doing. last        Shows a list of last logged-in users, including login time, logout time, login IP address, etc. lastb       Same as last, except that by default it shows a log of the file /var/log/btmp , which contains all the bad login attempts. lastlog      This command reports data maintained in /var/log/lastlog , which is a record of the last time a user logged in. ac          Prints out the connect time in hours on a per-user basis or daily basis etc. This command reads /var/log/wtmp . dump-utmp   Converts raw data from /var/run/utmp or /var/log/wtmp into ASCI...
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