Archive for the ‘IT Security’ Category

Microsoft ADCS – How to Redirect the HTTP URLs for CDP and AIA from old CA to new CA

Friday, March 1st, 2013

2013-03-01 Initial Post

Microsoft's Active Directory Certificate Services (ADCS) is a type of certification authority (CA) (a lot of people misspell that as "certificate" authority). A CA issues x.509 (a standard for digital certificates) formatted certificates for computer security purposes. When an organization sets up its own Certificate Services infrastructure, that essentially becomes its public key infrastructure (PKI). ADCS functions as a CA in a PKI and the CA and all its supporting systems are the PKI. You might see all three terms used interchangeably, and many documents just refer to a server running ADCS as "the CA." (more…)

Yawcam Notes, Review

Sunday, July 29th, 2012

2012-07-29 Initial Post

I played around with this back in January 2012 with version 0.3.7, using it with a Logitech QuickCam Deluxe for Notebooks model V-UBV49.

Basically I wanted to set up a video surveillance system and this seemed to be one of the better free programs for doing such. It has some nice features for a free program, but it needs some work. I ended up getting a camera with built-in motion detection--see my post on that at

Here are some misc notes I made about Yawcam. This isn't very extensive and I'm just posting it for my own reference.

  • C:\Users\%username%\.yawcam\
  • You can define an area for motion detection. The area is based on the current frame, so if you move the camera, you need to reselect the area.
  • You can add an overlay to the capture (such as text with the date and time).
  • It has a scheduling feature.
  • Too much sun washes out the motion detection area (not the software's fault).
  • It temporarily saves motion activated images to C:\Users\%username%\.yawcam\motion even if you specified another location. The images there get deleted after clearing/deleting the events from the Window menu --> Motion Detection --> Motion Events tab.

X10 AirSight Wireless IP Camera and (Cheaper) Clones, EasyN FS-613A-M136 Review

Saturday, June 30th, 2012

2012-06-30 Updated

2012-01-25 Initial post

I was thinking of getting the X10 AirSight Wireless IP Camera and had a $15 off discount code, so it would have cost $85, which seemed like a good price for the features. I was about to get it but fortunately I found out that there are clones of this exact same cam. Note that even though the clones share the exact same hardware, the software and instructions vary. (more…)

Active Directory LDAP Authentication and Security

Thursday, February 2nd, 2012

2012-02-02 Updated

2012-01-23 Initial post

One of our application administrators asked me to help him troubleshoot why LDAP user authentication didn't work correctly in his application, Oracle Agile PLM (Product Lifecycle Management) 9.3.1. I decided to look into LDAP authentication a little more and here are some notes I made. I wasn't able to find a nice simple article that answers this question: How is LDAP user authentication handled in AD? (more…)

BitLocker on Windows 7 Ultimate (x86), Set Up Notes, Boot Issues, BCD

Tuesday, December 27th, 2011

2011-12-27 Updated

2010-07-14 Initial Post

Also see my other post,

I finally got around to messing with BitLocker again and learned a few more things about it. I have a Gateway S-7410M laptop which I thought did not have a TPM (Trusted Platform Module) chip. I have the latest BIOS update, but in the BIOS setup, the option to turn on TPM was grayed out and there was nothing in the documentation that mentioned how to enable it, and there was no TPM management software for download. (more…)