Aug 05









So you need to run some script that you’ve created at certain times on certain days and you don’t know anything about cron.  You’ve come to the right place.  I am about to show you the basics of the Unix/Linux crontab:

Below are some basic crontab commands:

export EDITOR=vi – This sets up a default editor for the crontab to use.

crontab -e     Edit your crontab file, or create one if it doesn’t already exist.

crontab -l      Display your crontab file.

crontab -r      Remove your crontab file.

crontab -v      Display the last time you edited your crontab file.

crontab syntax:

A crontab file has five fields for specifying day , date and time  followed by the command to be run at that interval.

*     *   *   *    *  command to be executed

-     -    -    -    -

|     |     |     |     |

|     |     |     |     +—– day of week (0 – 6) (Sunday=0)

|     |     |     +——- month (1 – 12)

|     |     +——— day of month (1 – 31)

|     +———– hour (0 – 23)

+————- min (0 – 59)

Sample crontab entry to run a the unix remove command to remove some temporary files:

30     *     *     *     *         rm /tmp/*.tmp

This runs a rm comand and removes all files that end in .tmp from the /tmp directory every 30 minutes.

Aug 03








What is Windows Dreamscene?  Windows Dreamscene is an Vista Ultimate Extra.  It allows you to use videos as your desktop background.

If you are running Windows Vista Ultimate then all you need to do is follow the instructions below on how to install Windows Dreamscene:

How do I start using Windows DreamScene?

To use Windows DreamScene, you must be running Windows Vista Ultimate, and you must download Windows DreamScene as an Ultimate Extra.

To download and install Windows DreamScene

1.  Open Windows Update by clicking the Start button, clicking All Programs, and then clicking Windows Update.

2.  Click View available Extras.

If Windows DreamScene is not available, click Check for updates.

3.  Select the Windows DreamScene check box, and then clickInstall.

If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

You might need to restart your computer to finish installing your updates.

To download and install a Windows DreamScene Content Pack

When you download Windows DreamScene, you get one high-quality video that you can use as your desktop background. You can also download additional videos from Windows Update in the form ofcontent packs.

1.  Open Windows Update by clicking the Start button, clicking All Programs, and then clicking Windows Update.

2.  Click View available Extras.

If no Extras are available, click Check for updates.

3.  Select the Windows DreamScene Content Pack check box, and then click Install. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

After downloading and installing it, you can start using Windows DreamScene by selecting a video file as your desktop background. Here’s how:

1.  Open Desktop Background by clicking the Start button, clickingControl Panel, clicking Appearance and Personalization, clickingPersonalization, and then clicking Desktop Background.

2.  In the Location list, click Windows DreamScene Content, and then select the video that you want to use for your desktop background.

If the video you want is not in the list of desktop backgrounds, clickBrowse to search for the video on your computer. When you find the video you want, double-click it. It will become your desktop background and appear in the list of desktop backgrounds.

3.  Under How should the picture be positioned, choose the positioning that you want, and then click OK

Jul 31









There is a new feature built into windows seven.  It’s a new feature that allows you to have multiple windows up and click on and hold the title bar of the window you want to keep up on the screen and then you shake that wiindow.  Once you start to shake the current window, all of the other windows minimize all at once.  This is just another new feature of Windows 7.  Remember, this one is easy.  You have multiple windows on screen and you want to minimize all of them but one, you just click on the one you want and shake that window until all of the other windows minimize.

Jul 30








So, you’ve just installed Ubuntu and you need to start backing it up.  You’ve come to the right place.  All you need to do to start backing up your Ubuntu box is right here.

Step 1.)  Installing “Back In Time”.

sudo gedit /etc/apt/sources.list

Add the following line to this file:

deb http://le-web.org/repository stable main

wget http://le-web.org/repository/le-web.key

sudo apt-key add le-web.key

sudo apt-get update

sudo apt-get install backintime-common backintime-gnome

Step 2.)  Using “Back In Time”.

Go to Applications -> System Tools -> Back in Time.

Go through the different tabs and setup your settings for your backups.

Once you have everything setup then you need to hit the “Backup Now” button.  That’s it.  you now have your Ubuntu backups.

Jul 28









If you are usig Firefox and Safari in Mac OS X, you can use the new three finger gestures to perform certain actions.  Listed below are the new actions that Safari and Firefox perform with three finger gestures:

Firefox:

Three-finger swipe up: Home key (top of the page)

Three-finger swipe down: End key (bottom of the page)

Three-finger swipe left: Browse back

Three-finger swipe right: Browse forward

Safari:

Three-finger swipe left: Browse back

Three-finger swipe right: Browse forward

Jul 23









If you are setting up a kerberos user in active directory then you will need to do the following on one of the kerberos domain controllers:

Setspn -A HTTP/site kerbuser

for example if I had a website called support.acme.com and an active directory user called john.smith:

setspn -A HTTP/support.acme.com john.smith

Then after that I would run the following command:

ktpass -princ HTTP/site@KERBEROS_DOMAIN(ALL CAPS) -pass password -mapuser user@enviornment -out c:\temp\user.HTTP.keytab

for example:

ktpass -princ HTTP/support.acme.com@ACME.COM -pass password -mapuser john.smith@acme.com -out c:\temp\john.smith.HTTP.keytab

Once everything is setup, in order to login to the website using kerberos credentials through firefox or internet explorer you would need to do the following:

for Internet Explorer:

1.)  Join your computer to your kerberos Domain.

2.)  login to your pc using a kerberos domain user.

3.)  Setup the following for IE:

a.)  go to Tools -> Internet Options -> Click on the “Security” tab.

b.) Click on “Local Intranet” and then “Sites”

c.) Then Click on “Advanced”, Enter your site address here and click “Add”, then “Close”

4.)  Now you should be able to authenticate to your site using kerberos.

for Firefox:

1.) Join your computer to your kerberos domain which is usually your active directory domain.

2.) Login to your pc using a kerberos domain user which is usually your act ive directory users.

3.) In Firefox go to the address bar and enter “about:config” without the quotes.

4.) Filter for the following:  network.negotiate-auth.trusted-uris and set the value to your website for example:  http://support.acme.com,http://support.company.com

5.) Then set the following:  network.negotiate-auth.using-native-gsslib to true.

5.) Then leave the page and go to your website and you should be able to login.

Jul 20









This is a good tip that not a lot of people know about.  You know the 4 icons that are located on the gray bar at the bottom of your iphone?

You know the one that has your “Phone”, “Mail”, “Safari”, and “IPod”.

Well you can change these around or replace them with other Icons entirely.  In order to do this just press and hold the icons.  When the icons start shaking, just drag them while where you want them.  You can put any different 4 icons on your dock at a time.   Shown to the right side of the screen is a screenshot of how I changed my “Phone”, and “Mail” and reversed them.

Jul 17









1.) In a terminal, type sudo apt-get install compizconfig-settings-manager

2.) Then go to “System” -> “Preferences” -> “Compiz Fusion Manager.

3.) Check Desktop Cube, Rotate Cube, 3D Windows, Wobbly Windows, Paint Fire on the Screen, and Water Effects.  Then close the Compiz Fusion Manager.

4.)  Now the fun begins.  Listed below are a few shortcuts that will get you started having a little fun with the different effects of Ubuntu’s graphics:

Desktop Effects Keyboard Shortcuts
Rotate Cube Mousewheel on Desktop
Switcher2 Alt + Tab
Shift Switcher3 Super + Tab (2 modes: flip and cover)
Ring Switcher Super + Tab – overrides Shift Switcher
Expo Super + E (toggle)
Film Effect Ctrl + Alt + Down Arrow4
Rotate Cube Manually Ctrl + Alt + Left Mouse Button
Scale Windows Alt + Shift + Up Arrow
Show/Clear Desktop Ctrl + Alt + D (toggle)
Snapping Windows Move a window across workspaces5
Screenshot Super + Left Mouse Button
Zoom In/Out Super + Mousewheel
Transparent Window Alt + Mousewheel
Resize Window Alt + F8
Move Window Alt + F7
Add Helper Super + P
Widget Layer F9 (toggle)
Water Effects Shift + F9 (toggle)
Fire Effects: On Super + Shift + Left Mouse Button
Fire Effects: Clear Super + Shift + C
Annotate: Draw Super + Left Mouse Button
Annotate: Start Super + 1
Annotate: End Super + 3
Group: Select Window(s) Super + S
Group: Group Windows Super + T
Group: Ungroup Windows Super + U
Group: Flip Windows Super + Right or Left Arrow
Jul 16









f you connect your Mac OS X to the internet, then yes you need a Mac OS X Compatible Antivirus software program.  The only safe computer or Mac is one that never connects to any network and is always physically secure.  So, now that you know you need antivirus software, the question is what is out there for mac users as far as antivirus software goes?  I recommend PC Tools Antivirus software.  It seems to be a pretty good antivirus program and it’s also free for home users.  Corporate users have to pay a nominal fee.  You can download PC Tools Antivirus software for Mac OS X from the following link:  http://www.iantivirus.com/download/

Once you install the software, which is a very easy install, it will startup automatically and you can go ahead and make sure that “Protect My Mac” is checked and then you can go ahead and scan your mac to make sure that you don’t have anything on your computer that is malicious.

Jul 15









In order to create a new virtual machine, you will need to login and expand the esx server named “esxserver.example.com” and then click on your resource pool which happens to be your name.  You will then right click on the resource pool and select “New Virtual Machine”.  Once you have created your virtual machine and you are ready to install the operating system, you will need to click on your virtual machine and edit the settings.  You will need to right click on the virtual machine and select “Edit Settings”.  Once you are in “Edit Settings”, you will need to click on the “Option” tab and then select the “Boot Options” portion of the screen.  Once this is done you will need to check the “Force BIOS Setup” checkbox.  At this point you will need to put your operating system install disc into your cd drive on your local computer and then click “OK”.  Now it is time to click on your VM and power it on.  Once the VM is powered on, you will need to click on the console tab icon on the toolbar.  The icon is a computer with an upward right arrow.  Once you have the console screen up you will see the “PhoenixBIOS Setup Utility” Screen.  Using the right arrow key, you can move the menu to the “Boot” menu.  Now you will need to use the arrow keys to select  ”CD-ROM Drive”.  Once this has been done you will need to click on the “+” button to move the “CD-ROM Drive” to the top of the boot menu.  At this point you will need to press the “control” + “Alt” buttons to release control of the VM.  Now it is time connect your local “CD-ROM Drive” to your virtual machine.  You will need to click on the Cdrom with a wrench icon and then select your cd–rom that has your operating system disc in it.  Once this has been done, you can click back into the console screen and use the right arrow key to move to the “Exit” menu of your “PhoenixBIOS Setup Utility” screen.  At this point, you want to “Exit Saving Changes”.  Now you will see a “Setup Confirmation” box appear.  Just make sure that “YES” is highlighted and hit the return key.  When your VM reboots it should automatically boot your operating system install disc and you can then install your operating system on your VM.

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