Archive for the ‘Do It Yourself’ Category

Creating SSL certificates for Microsoft OCS

Tuesday, June 29th, 2010

Part of the setup procedure for Microsoft Office Communication Server (OCS) is to create an SSL certificate and install it on the server.  The typical procedure to do this is to create a CSR (Certificate Service Request) first on the server, then copy and paste that into the web form (or upload as a text file to) your Certificate Authority of choice.  Your CA then issues your SSL certificate as a text file (usually with a .cer or .crt extension).   Pretty straigh forward process.  But if you use the text file created by MS OCS, chances you your Certificate Authority (CA) didn’t like that file and may have presented you with an error like “invalid CSR”.  If you have encountered this the good news is that the solution for getting around the error is very simple.  It is telling you that the CSR is invalid because it is missing the “START” and “END” tags.

So simply insert the following line at the BEGINING of your CSR data:

—–BEGIN NEW CERTIFICATE REQUEST—–

And append a carriage return plus the following line to the END of your CSR:

—–END NEW CERTIFICATE REQUEST—–

Save your file or select all and copy and paste your CSR with the above two lines and you should be good to go!

Homemade Sanitizer

Monday, May 4th, 2009

With the scare about Swine Flu, even the big chains can’t keep enough hand sanitizer on store shelves to keep pace with demand. So if you are finding yourself vulnerable, try this recipe to make your own hand sanitizer.

HAND SANITIZER

1 cup        Aloe Vera Gel (100%)
1 TSP       Rubbing Alcohol
2 TSP      Vegetable Glycerin
8 Drops    Tea Tree Oil

You should be able to get all the above ingredients from a local pharamacy, with the exception of the Vegetable Glycerin, which you should be able to find in a crafts store.  Put mixture in a bottle or jar, and presto!  You’ve got your own hand sanitizer ready to go!

Instructions courtesy of KRON 4.

Mozy internet based data backup service

Tuesday, March 24th, 2009

Making regular backups of your all so important computer files is one of the most important preventive maintenance tasks we should all do. But how many of us actually have the discipline to do it on a regular basis? It’s not until your hard drive crashes, or that important presentation or thesis paper you’ve been working on for months suddenly becomes corrupt. That’s when you’ll wish you had made a recent backup.

The truth is most people DON’T perform regular backups of their data. Even most technology professionals like myself don’t do this even though we all know how costly it will be to try to recover that lost data.

So the best backup solution is really one that occurs regularly and automatically without any intervention on the part of the user. And to be be a true disaster recovery type solution, your data should be stored offsite, and not on some external hard drive in the same building. Afterall, all it takes is a fire or similar disaster to wipe out not only your data, but your backup media to boot!

Thankfully with the internet, such a solution does exist.   One example of such a service is called Mozy and as a regular customer of theirs for the past few years, let me tell you, it is an awesome internet based backup service!  Not only do I now use them personally, but I have referred countless clients and friends to them as well. 

Mozy comes in two flavors: a personal/home version and a business version called MozyPro.  They both essentially use the same configuration software it’s just a matter of what you are trying to backup up.  To backup servers, you’d use the MozyPro version; to backup personal home computers, sign up for either the FREE or PAID MozyHome type account.

What I like most about Mozy is how easy it is to setup and get running.  There is a lot of advanced configuration choices for pros like me, but for even the novice, the software makes it easy to select the type of data you want backed up. You don’t need to know where your Outlook Personal File Folder (PST) files are, for example. With Mozy, select Outlook Mail files and the software backs the default location for you! So the novice user should be able to go with al lthe default choices and rest assured that his/her data will be backed up properly. The software can be set to run automatically either on a daily schedule or whenever the computer is idle. Best of all, all backups are stored on Mozy servers encrypted, so you can rest assured you have a good offsite backup of your data in the event of the worst scenerio.

In a few months I will post a more thorough right up of various data backup options for the home user or small office… everything from using an external hard drive as a backup device, to installing a full blown dedicated backup server solution such as Veritas Backup Exec or CommVault. But for now, if you don’t have any backup solution currently in place for your computers, I highly recommend Mozy. Once installed and configured it should require very little maintenance … just check it occasionally to verify it is working as expected. Mozy is a great solution for anyone without in house computer support staff, and it can also serve as a complimentary secondary backup solution as well. More on that later. For now, if your most precious data is without a safety net, give Mozy a try! If you do, be sure to let me know your experiences and feedback.

The Secrets of Home Tape Baking

Tuesday, February 17th, 2009

I tend to subscribe to more magazines than I have time to read.  Yesterday I was going thru some old professional audio recording magazines and came across an interesting article from EQMagazine titled “The Secrets of Home Tape Baking” [March 2008] by Jonathan Stars.  I was intrigued by the idea and though I don’t currently have a need to try it myself, I do still have my own collection (gathering dust in the garage right now) of some audio reel-to-reel masters that such a trick might prove useful for down the road.   Basically the author talks about a way you can literally “bake” your precious analog tapes at high temperature using a food dehydrator as a way to prevent the iron oxide coating from sticking to the tape heads on playback. 

The phenonem is known as “sticky shed syndrome”.  Analog tapes are made with an iron oxide coating (this is the part that is magnetized and records your audio information for playback) along with a glue that makes it stick to the backing.  It is this glue that absorbs moisture over time and can become undone.   Not only does this result in really poor audio playback (like popping noises and losing the high end), but as you can imagine, it can ruin your precious tapes!  The author describes the worst symptom was when “bits of the tape got stuck to the heads (and anything else the tape touched along the path between the reels), and literally peeled off — sometimes, in little flakes, and, sometimes, in string-like shavings up to an inch long.”  YIKES! 

This technique is not a cue for all situations, however.  Jonathan does caution to watch out for tapes with splices as they do tend to break or acetate tapes for that matter as heating will actually make the situation worse.  And don’t even think about trying this trick out in your kitchen oven, etiher.  The thermostats just aren’t accurate enough.  Instead, Jonathan recommends using is the Nesco American Food Harvest Snackmaster Pro FD-50 Food DeHydrator [$80 from nesco.com].   Check out Jonathan’s article in the March 2008 issue of EQ Magazine for more dos and don’ts about baking your old tapes.