Ransomware and Munich

In the lights of recent worldwide ransom-ware attacks- Wikipedia to computers in Windows world, I am wondering what happens to the process of migrating back from Linux (LiMux) to MS Windows in Munich City Government. As you probably know they managed to switch 15,000 desktop PCs from Windows to Linux and running fine for more than 10 years. Some local politician decided to go back after an offer from Microsoft to switch to Windows 10. Coincidentally Microsoft’s head quarter moved to Munich around the same time.

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My new Chromebook

I bought an ASUS Chromebook Flip 10.1″ Touchscreen Laptop (Quad Core, 4GB, 16GB eMMC) – Aluminum Chassis. I know it is like a dumb terminal (browser), but as a Linux fan my intention is to install Linux on it. Boy that thing is thin – love it.

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3.5 inch Touch Screen Display For Raspberry Pi 3

Today Santa brought me a new 3.5″ display  for my Raspberry PI 3 and I am busy now installing it and making it to work. Mine came with a Protective Case + 3 x Heat sinks+ Touch Pen

Assembling was a piece of cake. I had already running Raspbian on my Rpi using it mostly headless (via ssh), connected wirelessly to my LAN. When I powered Rpi on, the display went all white – so far so good. Time to install some software in order display to be recognised. Found a nice site with a wiki  http://www.waveshare.com/wiki/5inch_HDMI_LCD

They are talking about 5″ display, but I decided to give it a try and see what happens with my 3.5″.

#1. Downloaded the driver while ssh-ed to my Rpi using wget as root

wget http://www.waveshare.com/w/upload/3/3d/LCD-show-160811.tar.gz

#2. Extracted the files from the archive

tar xzvf /boot/LCD-show-YYMMDD.tar.gz

#3. Added couple of lines to /boot/config.txt file

hdmi_cvt 800 480 60 6 0 0 0

#3. Ran install

cd LCD-show/

#4. Rebooted

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LinuxCon 2016

Tomorrow Linux will turn 25.

There is a LinuxCon event in Toronto and I decided to visit it and see Linus’ keynote. What a disappointment was as per schedule it suppose to be like 10 minutes long. On top of that they asked me to register and pay $100. I will pay… but some other time (never). I am not interested in corporate drones there and their containers (most of the topics of the conference). VMware, HP, IBM and surprise Microsoft and Citrix (WTF). MS even has a keynote. Some memberships are $1100 – good luck with that. I don’t make my living with Linux or containers. That explains why Linux desktop is going nowhere – there is no money in it (for FSF).

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Measuring Temperature and Humidity with Raspberry Pi

After I played with OLED display with Raspberry PI, the next logical step is to display more useful information on it.


I bought a sensor DHT22_AM2302 which is a Digital Temperature Humidity Sensor with serial interface.

The device measures both temperature and humidity and you get the values in single poll.

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Windows 7 updates stuck (or suck)

I did fresh install of Windows 7 on both bare metal PC and in Virtual machine. Install went ok, but no updates. Checked for updates – 4hrs and still “checking…” I interrupted it.

Found a tool on the MS site which suppose to fix the problem: http://go.microsoft.com/?linkid=9767096

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OLED display to Raspberry Pi

Today I played with an OLED Display. I bought it from Amazon for $14 which is 0.96 Inch I2C and SPI Serial 128 x 64. It needs only 4 wires to connect to Raspberry Pi. This display is a monochrome (blue) – hence the price.

 i2cdetect -y 1

Showed the display detected on the I2C bus

Couple of lines of code from GitHUB – show IP address and the time. Graphics also can be drawn – lines, circles, rectangles, ellipses etc. even displaying .png files.


#!/usr/bin/env python
# !!! Needs psutil (+ dependencies) installing:
# $ sudo apt-get install python-dev
# $ sudo pip install psutil
import os
import sys
if os.name != 'posix':
sys.exit('platform not supported')
import psutil

from datetime import datetime
from oled.device import ssd1306, sh1106
from oled.render import canvas
from PIL import ImageDraw, ImageFont

f = os.popen('/sbin/ifconfig wlan0 | grep "inet\ addr" | cut -d: -f2 | cut -d" " -f1')
from time import gmtime,localtime, strftime
t = strftime("%Y-%m-%d %H:%M:%S", localtime())
def stats(oled):
font = ImageFont.load_default()
font3 = ImageFont.truetype('/root/oled/fonts/C&C Red Alert [INET].ttf', 18)
font4 = ImageFont.truetype('/root/oled/fonts/C&C Red Alert [INET].ttf', 22)
with canvas(oled) as draw:
draw.text((0, 26), your_ip, font=font4, fill=255)
draw.text((0, 48), t, font=font3, fill=255)

def main():
oled = ssd1306(port=1, address=0x3C)

if __name__ == "__main__":

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Добавих твърдотелен диск към уеб сървъра

Купих си един твърдотелен диск (Solid State Disk SSD) ADATA 120GB за $45 и го добавих към сървъра с надеждата да се подобри производителността.

Кореновата файлова система я оставих на оригиналната SD карта,просто преместих /var директорията и swap файла върху новият диск. Да напомня, че MySQL, Apache, логовете и др. са във /var директорията.

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Added Solid State Disk to the web server

Today I bought a Solid State Disk (SSD) ADATA 120GB for $45 and added it to the server in hope the performance will improve.

Root file system is still on the original SD card, I just moved /var directory and the swap file onto the new disk. Mind you that MySQL server, Apache web server, log files etc. are in /var directory.

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Всеки българин ще получи от държавата електронна поща.

” … Всеки българин ще получи от държавата електронна поща. Това е предвидено в проекта за развитие на електронната идентификация, който е един от най-важните за внедряване на е-правителството. Имейлът ще се издава служебно при подновяването на личната карта с такава, в която има електронен идентификатор, предвижда пътната карта на правителството за изпълнение на стратегията за електронно управление..”

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