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USB flashing led raspberry pi – show status

November 22, 2017 by Kalitut Leave a Comment

USB Flashing Led

The blink (1) is great for showing a status or condition. For example, a service status is interesting. So, whether service or service started or not started. Or to put it another way, whether he is running or not.
What is the blink (1)?
blink (1) by ThingM is a USB stick with a RGB LED that can be controlled by software. In this case, blink (1) can accept any RGB color and flash, flash or just permanently light up. This is interesting for any kind of status display, without electronics or other hardware tinkering.

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Overclocking Basics

November 19, 2017 by Kalitut Leave a Comment

Overclocking is part of PC tuning and refers to methods to increase the speed of transmission or processing of clock-dependent components. As a rule, the clock rate is increased in order to operate the component above its nominal clock. You can overclock the processor, the memory bus of the main memory and the graphics card. The biggest performance gain can be achieved by overclocking the processor.
If you want to overclock, you must familiarize yourself with the functionality and interaction of the hardware components involved. Benefits, risks and side effects must be determined exactly.

When overclocking attempts must always be expected that system components are damaged or destroyed. Therefore you should create a backup of your data before overclocking. Even better, try overclocking on a fresh system.

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Mount unmount USB stick and USB hard disks using fstab

November 19, 2017 by Kalitut Leave a Comment

Automatically mount/unmount USB stick and USB hard disks with “raspbian fstab”

By default, Raspbian Jessie automatically includes new USB drives in the path “/media/{USERNAME}/{LABEL}”.

But that only does it when a user logs on to the system. However, if the system is running in headless mode and/or without a logged in user, then USB drives are not automatically included.

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KRACK – a new attack that can decode/break any WiFi

October 17, 2017 by Kalitut Leave a Comment

What does krack stand for? Key Reinstallation Attack
krack attack affects all modern WPA2 implementations, and is particularly dangerous on Android 6+/Linux – you can force a WiFi connection to use a session key consisting of zeroes alone … And that’s all because these platforms wanted to be more secure, but that’s a bit further.

Depending on the security model you use, you can: Decrypt the communication, spoof the communication (impersonate the sending packets), inject the packets.

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Security risks of the Smart Home and counter strategies

October 11, 2017 by Kalitut Leave a Comment

The Internet of Things (IoT) also helps the concept of the Smart Home through more and more networked devices to a greater extent. However, smart home networks have at least one connection interface that can potentially be used by attackers. To prevent this, a proven hardware security concept is required.

With the rise of IoT devices, the environment of our home networks has drastically changed in recent years. Five years ago a home network consisted of a router, which was connected to the Internet via ADSL or cable connection. This was mainly connected to devices such as desktop computers and laptops. Today, more and more intelligent devices have an Internet connection so their data can be collected and controlled. However, any device that is attached to the home network can actually constitute an access point for attacks and thus a security risk.

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