Category Archives: Tips
Tip, creating PDF file from pictures
Problem: How to create PDF file from a list of pictures in a folder Solution: Use IrfanView function “Create multipage PDF file” Solution Alternative: Use PDFill (was much slower) Step 1: Resize and Crop images as needed by using menu: … Continue reading
OpenStack concepts via Ubuntu Cloud Live in VirtualBox
Ubuntu Cloud Live image is mentioned at Ubuntu’s site and instructions are given on how to boot the system from USB. This image is nowadays a little outdated (based on Essex release). For more serious experiments, please use more up-to-date … Continue reading
Outlook tip: Avoid email sending mistakes by rules and categories
It is a common mistake is to send an email to someone without intention. For example, by quickly replying to an internal email without realizing that there were external recipients included in the distribution list. This blog is about avoiding … Continue reading
Good to Know, Critical Controls for Effective Cyber Defense
Often referred as “SANS Twenty Critical Security Controls for Effective Cyber Defense“, is a collection of controls which are believed to have the greatest impact in improving risk posture against real-world threats. There is no shortcut or “miracle medicin” when … Continue reading
Android Device Manager, a way to locate your phone or tablet
Android Device Manager is a new function in Android to be able to locate your phone. It should work for android 2.2 and up. After login to device manager https://www.google.com/android/devicemanager, one can see the latest location of the phone or … Continue reading
Tip, slow down a song for school play or for learning lyrics
Sometimes it would be great to be able to slow down a song. For example, for a school play the original song might be way too fast for presentation. Or you might want to learn the lyrics of your favorite … Continue reading
Using ImageMagick to reveal existence of hidden steganographic messages with DIY IM-simpleGUI tool
Tools used ImageMagick is a powerfull CLI tool for image processing. For different commands, see their www pages. The following commands are used in this blog: compare convert montage In addition ImageMagick contains image filters like Laplacian (IM, wikipedia), Sobel … Continue reading