Efficient DBAPart 1

Scripting Your Logins“Efficiency is intelligent laziness.”

~ David Dunham

TCOUG

Start at the End

TCOUG

Set the SQL prompt

TCOUG

Always be aware of your environment

TCOUG

Script the environment variables for each instance

TCOUG

rlwrap

TCOUG

• Gives capability to re-execute commands in sqlplus and rman• Command history program similar to bash’s history package• Installable as RPM or compile from source• Gives similar behavior to sqlplus in Windows• Will run in Cygwin• Very robust, but simple arrow up gives last command executed• http

://sysdba.wordpress.com/2006/10/08/how-to-use-rlwrap-to-get-a-command-history-in-sqlplus/• http://goo.gl/EfGOl

• http://utopia.knoware.nl/~hlub/rlwrap/#rlwrap• http://goo.gl/YdJN5

Put environment scripts in an easily accessible location and alias the most frequently used

TCOUG

Sudo prohibits and allows commands to be run

TCOUG

Sudo has a verification timeout before asking for your password again

TCOUG

Only requires password once, then loops and executes command once every 10 seconds

Note: Your company’s security department may not like this

TCOUG

Add this script to your profile scriptWill execute automatically on login

TCOUG

Will run as long as your login PID exists

TCOUG

AD/LDAP user automatic login

TCOUG

Shared Key Authentication is enabled on the server by default

TCOUG

Generate private and public keys with PuttyKeyGen

TCOUG

Private key client authentication done by Pageant

TCOUG

TCOUG

The key generated will look similar to thisFormatted like this will work with Linux SSHD

$HOME/.ssh should be set to 700

TCOUG

$HOME/.ssh/authorized_keys should be set to 600

Once the public key is added, the server is ready to accept the paired keys

TCOUG

Shared Key Authentication bypasses the need for a password on login

TCOUG

TCOUG

• Desktop• Log into server using share-key authentication• Sudo keep-alive loop started• Switch User to Oracle• Set environment variables• Log into sqlplus

Review

When Time is Your Bottle NeckEvery Second Counts!

TCOUG

Become an Efficient DBASpend some time each week finding shortcuts

Thank You!

Seth Millervp@tcoug.orghttp://sethmiller.org