Category: News Technology

Tips to Make Homemade Spy GadgetsTips to Make Homemade Spy Gadgets

Children always like to pretend they are spies. Creating a spy lair is an interesting way for children to kill boring time on rainy afternoons. With a few items which you can easily find around your house, homemade spy gadgets can create. Here we will teach you to create two homemade cool gadgets, hidden camera, and fingerprint powder respectively.

A hidden camera is one of the cool spy camera gadgets that you can easily create for your children in a short time. First, find a tissue box around your house, and remove its contents, and set the tissues aside. Then you need to use a knife to cut a 1/2 inch diameter hole in the side of the box. Set a digital camera inside the box with the lens resting against the hole. And place the camera on record video before you place it inside the box. The camera will begin recording without the knowledge of any other person in the room.
The instruction of making a homemade fingerprint powder is as follows:

Avoid Slight Damage

First, pour 2 tbsp starch into a small porcelain bowl. Then light a candle, this step should be done by an adult in order to avoid slight damage. Hold a second small porcelain bowl upside-down over the candle with tongs. The bowl captures the soot from the candle. By now, you can use a bread knife to scrape the soot away from the porcelain bowl, and then place it into a third porcelain bowl.

Follow the Same Process to Gather Enough Soot

Mix the two tbsp. starch with 2 tbsp. soot porcelain bowl. Dip a small makeup brush into the mixture of starch and soot, and brush it over the fingerprint. Place a piece of clear tape over the print to lift it from the smooth surface. Place the tape onto a white index card and press it down gently to translate the print, and then lift off the tape carefully. In order to make a clear fingerprint, you should be careful enough to take every step.

There, isn’t it easy to make cool spy camera gadgets for on your own? Get started now!…


Everything Vs Targeted BackupsEverything Vs Targeted Backups

I’ve been in several IT environments where backups are an afterthought. After all, if your backing up the entire computer system, isn’t this the best option?

1.) How Quickly Can You Bring Backups Back Up?

If you are backing up an entire computer on a normal backup every night, that’s going to start taking a lot of space. If you decide to only do a normal backup once a week or month, then to retrieve one file you’re going to be spending a lot of time going through differential backups. However, if you are backing up the essentials to re-create the software on the server (for example, the database or configuration files), have an image of a blank server, and all backups are normal backups, then it’s fairly quick to restore. Another benefit to this is that if you only need to restore one small portion or file, then it is a lot easier.
Take away lesson: Backups are meant for restoring. The easier and quicker to restore, the better.

2.) Virtual Computers

Many virtual systems allow you to create backups using their system. This allows you to create full backups using a normal backup every night, without taking a lot of space. However, in my experience, you have to worry about the corruption of this internal backup system. I’ve had to re-build 2-3 servers for this reason alone. My opinion is to still create the traditional normal backups that take just the essential portions of these servers every night. I then like to have a separate area with a complete original working copy of the server. This copy is not updated every day or even every week. The idea is that if things went horribly wrong, you can restore this server, pull the latest files from your normal backup, and re-create this server to it’s the latest state. This approach helps prevent corruption of data as you not restoring corrupted copies of the operating system.
Take away lesson: One old copy of the server + the normal backup of targeted files makes it easier to rebuild virtual servers.

3.) Blanks

The last thing I want to mention is to always have blank virtual images or even blank disk images you can put to physical machines. This allows you to quickly install a copy of the operating system with your company’s configurations. Furthermore, this helps with building test machines, as it allows the end user to have a fresh copy of the server within 15 minutes.…