Einfach genial!

Ich habe gestern mal eine Aufnahme von „Einfach genial“, seiner Meinung nach ein Erfindermagazin, gesehen. Allerdings habe ich das Gefühl, dass ich da keine Erfinder, sondern BWL-Hipster betrachten durfte. Z. B. einen Jungunternehmer, der Zusatzgeräte zu Heizungssteuerungen vertreibt, die die Raumtemperatur per Smartphone (und location based services) verwaltet.

Erfunden hat der das eher nicht. Auch nicht zusammengebastelt. Sein Verdienst ist eher, dass er für die Media Coverage sorgt, und mit einem Business Plan einen Geldgeber überzeugt hat. Ist ja auch eine Leistung, aber keine Erfinderleistung.

In der gleichen Sendung wurde der Weg des appgestützten Heizungsan- und -ausschalters zu einer Studentin nach München verfolgt. Direkt aus dem Leben gegriffen, unsere Studentin lebt in einer 120m² Altbauwohnung – in München. Ich meine, als Zuschauer sollte ich der guten Frau eher zu dem „guten Fang“ namens Freund gratulieren als zu einem Hipstergadget für Heizungssteuerung.

Meine zwei Cents…

Markus little helper

As you’ve probably seen, I moved my server to a raspberry pi. Irony: now, that I have this server, I am adding more functionality to it than I had on the dedicated virtual server that I had flugphase hosted on before. A small list:

  • openvpn (as a fallback for my home vpn server)
  • roundcube (as a fallback for gmail, work mail, local mail) with managesieve
  • dovecot, postfix and sieve (mail server, mail transfer and mail filtering, which I didn’t have set up before)
  • owncloud with
    • carddav – contacts for android and thunderbird
    • caldav – calendar for android and thunderbird (lightning)
    • webdav / webservice as a (drop-)box and ubuntu one replacement

With those services all hosted on the little pi, it probably will be too small soon :-)

Mission accomplished

The move to my new raspberry pi server is completed. In addition to wordpress, I have owncloud and roundcube installed. With a bit of tuning of the apache-mpm-prefork server (the configuration I used originally) and the installation of php-apc, the performance is quite good.

I decided to move sideways from the cloud. Since the Snowden leaks showed that all cloud-data ultimately seems to end up at some state’s secret agencies, I’ve taken measures to move my personal data (contacts, calendar entries, location information, mails) „out of the cloud“ where possible. And the pi server (€62,50 for the hardware and €3 / month for colocation) is a cheap way to facilitate that.

Why Big Data Isn’t Necessarily Better Data

They note that “greater value can be obtained by combining GFT with other near–real-time health data.” For example, “by combining GFT and lagged CDC data, as well as dynamically recalibrating GFT, we can substantially improve on the performance of GFT or the CDC alone.” Big data could likewise be an effective tool for better understanding the unknown, in areas where CDC data does not work well, such as presenting flu prevalence at very local levels.

via Why Big Data Isn’t Necessarily Better Data | Observations, Scientific American Blog Network.

Polemisch gesagt: „Und dann führen wir noch einen Faktor ein, der die Vorhersage ex post an die Realität anpasst“.

Wochenend ToDos

Ich habe mal ein Script geschrieben, dass die von mir verwendeten externen IPs in einer Datenbank ablegt. Ich will ja nicht, dass mein Datenverkehr mit dem von Bittorrent-nutzenden Senioren verwechselt wird. Die Frage ist natürlich: wie beweisfähig ist das? Darüber bin zuerst bei Trusted Timestamps gestolpert, und dann bei Crypto Stamp, dass Zeitstempel über einfügen in die BitCoin Blockchain absichert.

Nebenbei habe ich dann mal mein NAS aufgeräumt, indem ich mittels md5sum, find, awk und Einlesen und Abfragen in PostgreSQL mal nach Doppelgängern gesucht habe.

Was man halt am Wochenende so macht.

Dear Screen Writers Guild of America

Dear Screen Writers Guild of America: Every time you write a script with the story of a clone having distant memory flashbacks, two things happen:
a) a sad Xerox is losing its toner in its guts
b) I start watching the flick and think „not again, I have distant memory flashbacks of having seen that“

New project – real life

I’ve got a new project – this time without programming! In 2014, I will try to become my own farmer! Or, to be more precise, my brother, my parents and I plan to setup a vegetable garden to grow potatoes, turnip, herbs.

Firstly, we will prepare an unused area of my parents property by getting rid of roots that were left from taking down trees. Since that’s a bit hard, we decided to get heavy machinery help to do that.

IBM Cognos Express – not so express install

A considerable time passed by last week trying to install IBM Cognos Express. I didn’t read the requirements beforehand. I couldn’t have anyways, just as I am typing this blog entry, I find out the requirements link on the IBM website is dead.

Started by installing Windows 7 Professional – which takes about two to three hours until it’s up to date. Wrong: Installing Office 2013 64 bit – only 32 bit is supported by Cognos Express. Wrong: Installing Office 2013 32 bit – Cognos only works with Office up to 2010. Wrong: trying to uninstall Office 2013 and install Office 2010 – the installation is broken afterwards. Wrong: trying to install the Cognos client software before it is absolutely sure there are no updates for Windows and Office anymore. This took me about two days…

Right:

  • Fresh install of Windows 7 (32 and 64 bit are fine).
  • Update until Windows Update is showing no more updates.
  • Install Office 2010 32 bit
  • Update until there are no more updates shown for Office 2010.
  • Install Cognos Express
  • Open Cognos Express Manager and wait for the installation to finish
  • Install subcomponents of Cognos within the web interface, wait for the installation of those to finish
  • Download and install the client components of the welcome page

This took another day, but it finally works. So for anybody who wants to try the Cognos Express trial version: make sure you take these steps (all installations were done using a dual core, four GB RAM virtual machine).