Archive

Archive for April, 2009

VMware ESXi Free is a great learning utility

April 30th, 2009
ESXi from VMware

ESXi from VMware

More companies are turning to server virtualization.  If you are not already using virutalization technology in your I.T. environment, I am sure you will have to start soon.  There are so many positive features to come from virtualization such as:

  • Makes I.T. more eco-friendly: Running multiple servers on a single piece of hardware shrinks the needs for power and cooling.
  • Puts a smile on your CFO’s face: Less hardware and power use makes your budget look pretty nice!
  • Improves disaster recovery: Virtual servers do not need specific hardware to run, so a server can be back online much quicker than before.  There are also tools out there (like VMotion) that allow you to move a virtual server to another physical server automagically in case of a disaster.
  • Network Operation Centers get smaller: Real estate is precious.  Gigantic server rooms of the past can now be a server room / offices / I.T. lounge (save room in the budget for a ping pong table!).

If you want to stay competitive in the I.T. market, you will have to learn about virtualization.  Several software packages are available for free that allow you to begin your wonderous journey into the virtual realm.  However, you want something that is going to give you the closest experience to an enterprise virtualization system.  That’s where VMware’s ESXi package comes into play.

Read more…

Jason Virtualization , , , , ,

The cheap iPhone video camera stabilizing mount

April 27th, 2009


Cheap and easy iPhone video camera mount - More DIY How To Projects

Jason Weekend Projects , , , ,

Friday Funny: How to pose like this

April 24th, 2009
How to pose like this

How to pose like this

Jason Friday Funny , ,

Find rogue DHCP servers with DHCPLOC

April 23rd, 2009
The DHCPLOC Utility in action

The DHCPLOC Utility in action

DHCP is a great tool, but it does have it’s weaknesses.  If your network is not secured properly, a lot of damage can be done by adding a rogue DHCP server to the mix.  Let’s say you have a DHCP server giving out an address range of 192.168.128.150.10 - 100.  The DHCP scope defines your gateway and DNS servers as well.  Now someone else comes along and wants a better WiFi signal in their area.  They setup a Linksys WiFi device at home with no problems so how difficult can it be to install one at work?  I am going to point out again that you need to practice better security to avoid problems like this.  Security should be proactive, not reactive. They purchase a Linksys device and slap it into the network port with the default config.  Now, not only do you have an unsecure wireless broadcasting your network traffic (I’ll rant post about that later) you have a DHCP server passing out bogus IP addresses to your clients causing them to lose connection with your network.

If you ever enter a situation like this, you need to find the rogue DHCP server as soon as possible.  You could start up WireShark and sniff out the network traffic, but there is an easier way.  DHCPLOC is a utility from Microsoft that allows you to send out a DHCP request and capture the DHCP offer data.

NOTE: DHCPLOC does work in Vista, but the installer does not.  I downloaded the toolkit from here: Windows XP Service Pack 2 Support Tools.  Then I used 7Zip to extract all the files within the MS exe archive.  I then located the DHCPLOC utility and saved it to my USB drive.

To use DHCPLOC:

  1. Open a command prompt
  2. Type DHCPLOC <your IP address>
  3. It does not look like it’s doing anything, but it is.  Just hit enter and it will show you “Type d - to discover; q - to quit; h - for help.”
  4. Then hit “d” on the keyboard and wait a few seconds.  It will bring up all DHCP offer requests that it has found.

Once the rogue DHCP server has been found, then the real detective work begins: Finding the device on the network.  I will cover how to track down IP addresses in the next post.

Jason Networking , , , , , ,

StumbleUpon beats down DiggBar

April 21st, 2009
StumbleUpon - The Winner!

StumbleUpon - The Winner!

The results are in and it’s a clear winner for StumbleUpon!

StumbleUpon: 48 total views and 6 poll votes

DiggBar:  8 total views and 0 poll votes

Not quite the rush of traffic I expected, but it was a good experiment anyway.  It was very clear that StumbleUpon will get you more traffic, but also more viewers.  It looks like the few people the DiggBar did bring in did not stay long enough to even vote.

My thanks to the visitors.  Looks like I will be using StumbleUpon from here on!

Jason Random Thoughts , , ,

Burn CD Images with free ImgBurn

April 19th, 2009
Free software ImgBurn for Windows

Free software ImgBurn for Windows

If you have ever downloaded a linux distro like Ubuntu or a LiveCD utility kit like Trinity Rescue Kit, you find that most of them come in ISO image format.  An ISO is a CD image that is ready to be burned to disc.  Instead of giving you dozens or even hundreds of files and folders to manage, organize, and burn to CD or DVD, an ISO gives you the folders and files in a nice neat package.

Once you have an ISO image, what do you do with it?  The two best options are to mount it using a virtual drive software package like Daemon Tools (I’ll have to write an article about Daemon Tools, it’s awesome).  Or you could burn it to media using a disc burning software package.

If you computer does not already come with something like Nero or Roxio, I would highly recommend you download ImgBurnHonestly, I have ditched software like Nero and Roxio because it has become too bloated which makes it slow to use. It will easily burn image files to CD and DVD.  Not only will it burn ISO files, it will also burn BIN/CUE files, IMG files, and much more.

You can also create image files from discs.  Let’s say you want to copy a friends version of Ubuntu (or other totally legal software), but don’t have a spare blank CD or DVD laying around.  You just pop in the media, create image file from their disc, and burn the image file to CD or DVD at a later date that is convenient for you.

ImgBurn also has the option to burn files to media.  I personally have only used ImgBurn for images.  If I need to make an audio CD or burn files to a DVD, I will use another great free software package called CDBurnerXP Pro.

Jason Free software , , , , ,

Don’t mess with this guy

April 17th, 2009
Insert angelic chorus here

Insert angelic chorus here

Jason Friday Funny , ,

Keeping a clean mailbox

April 15th, 2009
Don't let this happen to you!

Don't let this happen to you!

This post is going to focus on the user more than the administrators.  However, this can be a powerful set of tips to provide to the mailbox owners.

Part of my duties include being the Exchange Server administrator.  Having an on-site email server, any email server, is a great thing to have, but it does come with some responsibilities.  The burden should not rest solely on the shoulders of the IT crew, either!

It’s a delicate balance to try to please the users, email server admins, and management.

Users: The mailbox owners.  They want to be treated as humans.  Restricting the mailbox size too small and the users will feel as if they are being treated unfair; “My ISP gives me plenty of room for my email.  Maybe we should just use them.”  I am not saying they should have unrestricted mailboxes, but try to implement a fair amount and treat everyone equally.  If CEO Joe or IT Tech Frank has an unlimited mailbox, there will be backlash when people find out (and trust me they will).

Mail Server Admins: Our job is tough as it is.  Managing thousands of mailboxes is difficult enough.  Now just think if everyone had 5, 10, or 20 GB mailboxes!  What a nightmare!  Backup and restoration is a overwhelming.  Migrating to another server is a process that could now take days, maybe even weeks.

Upper Management: How could this possible affect upper management?  They don’t have anything to do with email… do they?  Their jobs are to keep a healthy bottom line and make sure the organization is a well-oiled machine.  Email is meant to improve communications, but at what cost?  Storage space for bloated mailboxes, tapes for backups, more email server administrator time on the clocks, or even more staff is a hefty price to pay for a communication tool that is being misused.

I think I have made my point.  Now on to the tips!

  • If you have taken an action on a file, it’s probably safe to delete it.  Once you reply to or forward an email, what’s the point of keeping it?  The most common excuse I hear is that you are keeping a paper trail to cover your butt.  Do you record your phone conversations as well?  How about your chatter around the water cooler?  What’s the point of saving email then?  Just be honest and do your very best and you should not have to worry about CYA (covering your ass).
  • It’s okay to archive information, just have a purge date.  If an email is important, move it out of your inbox and place it in your archive folder.  Delete emails that are older than a specific amount of time (I usually do 6 months or older).  If you really, REALLY need to keep it then move it to a USB drive or (not a green option, sorry) print it.  I receive licenses for software in email.  I usually print them, place a copy in our vault, then delete the email.
  • Don’t forget your sent items.  There is still in there that needs to be deleted as well.  I usually delete all sent emails that are older than 1 month.
  • Incentivize the employees who keep a clean mailbox.  Do a monthly check to see who has been keeping their mailbox slim and trim.  Send them something to show them they are appreciated.  Candy, “Thank You” cards, an autographed picture of yourself, or see what HR has in the way of incentives.  If you can get your director or upper management to send something, it will be extra special to the end user.
  • Offer educational material to show people how to manage their inbox.  Some people just don’t know.  Offer classes, send out instructions in email (add a tag line to delete the email when they are done), or make a special trip out to those certain bulky inbox users for some one-on-one guidance.
  • At some point, it’s time for email bankruptcy.  You have thousands of unread items in your inbox.  It would take days for you to catch up.  Once you do catch up, you are behind from all that catching up you just did.  Catch up as much as you can for the past two or three days, then CTRL+A and DELETE.  This will wipe out your inbox, so be careful!  Use this as a lesson to keep it clean and well managed.
  • Use other forms of communication.  There are times when email is just inappropriate.  The “What are you doing for lunch” conversations are best kept to Instant Messenger or telephone.  Plus telephone and face-to-face communications really strengthen relationships.  There are so many emotions that are missing from IM and email.  Just remember, relationships can advance your career.
  • Try to keep the emails in your inbox limited to only what has arrived that day.  It takes a lot of work to do this, but it is very rewarding.  It’s like keeping a clean desk; it’s really tough to do, but a dirty desk just leaves you feeling frustrated and dreading work.

That’s all the tips I have collected.  If you have some handy tips for keeping the inbox clean and tidy, drop me a comment!

Jason IT Best Practices , , ,

StumbleUpon vs Digg

April 13th, 2009
StumbleUpon vs Digg

StumbleUpon vs Digg

Recently, Digg.com released the DiggBar.  Ready to see what great new things Digg has dreamed up, I quickly jumped on this.  There are some cool features, but it all boils down to being a “borrowed” design from StumbleUpon’s toolbar.  The cool thing about the DiggBar is the ability to use the bar without actually installing anything.




I am a pretty big fan of Digg.  I have even been to a live filming of the Diggnation Podcast.  It was a great experience, but it taught me a lot about the Digg community;  You only get noticed if you are popular (yikes, it’s high school all over again).  I have seen many great stories go unnoticed because the Digg submitter was not a popular person to follow.  If someone like Kevin Rose submits a story, it’s Dugg like crazy just because he is Kevin.  I have nothing against Kevin Rose.  In fact, I admire some of the things he has done.  It’s just the best example I could think of for a “blind fan rush” of Diggs.

I have used StumbleUpon many times in the past and had very positive results.  The nice thing about StumbleUpon is that it gives you a truely random site and takes away most of the popularity contest.  If you are a new website or blog looking for some attention, I would recommend StumbleUpon.

Maybe the DiggBar is more random than I thought.  What better way to test it than a duel!

HERE ARE THE RULES:

  • Submit this post to StumbleUpon and Digg
  • Try to make the submissions to each as identical as possible
  • Measure the traffic that is generated from both sites
  • Post the results to this site April 21st, 2009

I have also posted a poll to see how many people actually vote for their favorites.

Good luck to both of you!

I don’t know what will be more embarrassing:  The site crashes due to the heavy traffic or I only get about 3 hits from each.

Which one do you think will win?

Total Voters: 6

Loading ... Loading ...

Jason Random Thoughts , ,

Have Microsoft updates, will travel

April 12th, 2009
Install Microsoft updates offline

Install Microsoft updates offline

Everyone knows the importance of keeping your software up-to-date.  Especially your Windows Operating System and Microsoft Office products.  For the geek-on-the-go, downloading updates are not always an option.  Or perhaps the client has a slow internet connection.  You need to maximize the time spent troublehsooting the issue and minimize the time spent doing regular maintentance work such as patching the system or updating the anti-virus.

Thanks to CTUpdate (WSUS offline), you can now download all (or just a select few) Microsoft updates and put them on a CD or DVD for easy installation (I have not tested USB drives, but I have reports that it does work).

Another beautiful thing about this software is that I can have updates ready for any supported Microsoft operating system and Microsoft Office product.  It does not matter if the computer has Windows 2000 with Office 2003 installed, or Windows Server 2003 with Office 2000 installed.  I can be ready for any situation I step into!

I tried this for myself on a freshly installed copy of Windows XP and it worked great!  All updates were installed within 25 minutes and I only had to reboot a couple times!

NOTE:Windows 2000 systems need to copy the reg.exe file from a Windows 2000 installation CD under \support\tools in the support.cab into the client\bin subdirectory. Windows 2003 system need to copy the reg.exe file from Windows\system32 directory of an existing copy of XP.

Version 5 features include:

  • Support added for Microsoft Windows Server 2008
  • Optional download and installation of .NET Framework 3.5 SP1 and DirectX End-User Runtimes
  • Download of Operating Systems’ updates may preferentially be redirected to a local WSUS server
  • Number of updates to download and to install will be displayed and logged
  • Integrity of updates may be verified on subsequent download runs
  • DVD ISO images will be split into x86- and x64-products since ISO file sizes exceeded 4.7 GB
  • Windows Installer 4.5 integrated for Windows XP, Vista and Server 2003/2008 systems

The process of getting the updates will take some time, but it is worth it!

  1. Download the software from here:  Vulnerability Assessment.co.uk

  2. Extract the files and run the UpdateGenerator utility

  3. Select the options like shown below:
  4. CTUpdate main screen

    CTUpdate main screen

    I downloaded everything because I work on a variety of different computers and I wanted to be prepared for almost any scenario. I also unchecked the option to verify, but you might want to do this if you have some extra time. I did not chose to clean up download directories because I did not want to download the entire list of updates again when I refresh the software come patch Tuesday. Feel free to play around with these settings until they are tweaked to your needs.

  5. Be prepared to wait for a long time when you click the Start button.  There are a lot of updates to download and it does take a while (even on a high speed connection).  I just let my computer run overnight and it was ready for my in the morning.

  6. Once the ISO images were complete, I burned them off to DVD to give them a shot.
    WARNING:  These ISO files are HUGE!  Mine were about 6.5GB.  I had to use a DL DVD to burn them.  Since I don’t like to waste a lot of CD or DVD’s, I will probably purchase an 8 GB (or larger) USB drive to copy this onto.

  7. Once the DVD was ready, I popped it into my Windows XP machine to give it a shot.  It will autorun to the setup screen, or you can run the UpdateInstaller utility manually from the media.
    Update installer

    Update installer

    It’s probably a good idea to take the options:  “Back up existing system files” and “Automatic reboot and recall”

A couple reboots later, my system was completely up-to-date!  I cannot recommend this tool enough.  If you are work on computers, this will save you time.  And we all know that time equals money!

Jason Free software, Tutorials , , , , , , , , ,