Wednesday 30 March 2011

Linux : Marble Mouse Paste on Centos 5.5

Section "InputDevice"
          Identifier  "Mouse0"
          Driver      "mouse"
          Option      "Protocol" "ExplorerPS/2"
          Option      "Device" "/dev/input/mice"
          Option      "Emulate3Timeout" "50"
          Option      "Buttons" "7"
          Option      "ZAxisMapping" "6 7"
          Option      "Emulate3Buttons" "on"
EndSection

Tuesday 29 March 2011

Linux : Customize Vim Colors 2

In ~/.vimrc

syntax on
colorscheme murphy


Linux : Customize Vim Colors

In ~/.vimrc

syntax on
colorscheme ron
#colorscheme desert

Thursday 24 March 2011

Linux : directory color in ls too dark

ls shows directories in a dark unreadable blue with a black background
Change /etc/DIR_COLORS.xterm - set the DIR line to DIR 01;34 (lighter blue)


Thursday 17 March 2011

Grid Control : Set up a public monitor display PC

Config within Grid Control - a MONITOR user
* Set up a monitor role in Grid Control
 * Setup->Roles->Create
 * Enter name but no roles, sys privs,  No admin users
* Set up a monitor admin user
* Setup->Administrators
 * Enter name etc, then assign the MONITOR_ROLE, no sys privs
* Assign targets to the role
 * for EACH TARGET to be seen by the monitor need to grant view access individually !!
 * Go to each target page->Access link->Add->MONITOR_ROLE
 * Save
* To add a location to a target
 * In each target screen there is a Target Properties link that includes a location field
 * Various screens including All Targets can be customised to show the Location (Customize table columns)
* The best page to display is probably All Targets
* To limit the tabs displayed log in as MONITOR and choose Preferences->Target Subtabs and remove unwanted subtabs

Config on the display box
* Use Firefox
 * Set as the default browser Tools->Options->General
 * Install the ReloadEvery firefox plugin - this adds an option to the context menu on each page (right click on the web page to find it)
 * Set up a shortcut to OEM - will need to login perhaps - maybe can include password?
 * Navigate to the All Targets page
 * Turn on the reload for every minute
* To lock down the monitoring PC
 * Download and install kidkeylock http://www.100dof.com/kidkeylock.html
 * Create a shortcut to start it
 * TIP add /setup param to the shortcut to avoid being locked out immediately
 * In the program options set two pins and turn off all keyboard and all mouse and baloon tip (which shows the password)

Monday 14 March 2011

Linux : Change runlevel

Use telinit :-
su -c 'telinit 3'

Thursday 10 March 2011

Oracle : oraenv gives XPointer evaluation failed

In 11G+ this is due ORACLE_BASE not being set in the course of running oraenv

What is happening is $ORACLE_HOME/bin/orabase is being run to update $ORACLE_HOME/inventory/ContentsXML/oraclehomeproperties.xml and erroring as the particular key it is looking for is not in the file ( PROPERTY NAME="ORACLE_BASE" I guess) - however the error is ignored resulting in $ORACLE_BASE being unset

Made a one line change to oraenv to check the return value and use the OLD_ORACLE_BASE - which will probably work most of the time ;)
ORACLE_BASE=`$ORABASE_EXEC`
[ "$?" -ne 0 ] && { echo "Warning - failure of $ORABASE_EXEC"; ORACLE_BASE=$OLD_ORACLE_BASE; }  # New line