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This is the home-page of Karl Voit.

On this page you can see the latest blog updates. For further articles, please use the search bar or navigate through the blue tags. My recommendations are pim, privacy, or security.

I recommend any decent RSS/Atom aggregator to get notified on blog updates.

Most recent articles or updates:

2017-04-28: Clippings

On this page, I collect my public/media appearances of any kind.

Most recent update: 2017-04-28 GLT17

Read the whole article ...

2017-04-28: Candy From Strangers: Yes, Please!

«Don't take candies from stangers» we had been told by our parents. This is what we teach our own children.

And yet, we take all candies - large or small - we can get from financially driven strangers of the cloud in colorful clothing who rape our personal data and metadata in the background.

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2017-04-27: nomx-Scam: Everything Else Is Insecure

Scott Helme published a great weblog article about nomx which claims to be «the world's most secure communications protocol» and even better: «Everything else is insecure». It is about email communication.

I urge you to read the article in case you've got some technical background. In its way, it is fun.

As always, if anybody tells you that something is absolutely secure, this is a lie - deliberately lying or caused by poor knowledge on the subject.

TL;DR: the nomx box is horrible designed, does not work in many cases, runs old and insecure software components, can not be updated, includes backdoors, is prone to cross site scipting attacks, and so forth. In short: better not connect this device to anything else than a waste press.

This product is so bad, it can be considered as a total scam.

2017-04-26: Bettelmafia: Kronenzeitung, Heute und Österreich

Einfach informativ, einfach gut gemacht:

Man sollte sich als Leser dieser Blätter ernsthaft um alternative Zeitungen umsehen.

Ein Skandal sondergleichen.

2017-04-25: Trump an die Macht

Herbert Grönemeyers Hit aus den Achzigern:

Der Refrain vom Liedtext passt doch ziemlich gut auf Trump, oder?

Gebt den Kindern das Kommando
sie berechnen nicht
was sie tun
Die Welt gehört in Kinderhände
dem Trübsinn ein Ende
wir werden in Grund und Boden gelacht
Kinder an die Macht.	  

Vor allem die »Kinderhände« finde ich zum Schmunzeln ;-)

Allerdings bei den Strophen dazwischen hört sich der Spaß leider auf: hier muss Trump noch ziemlich arbeiten, dass er an den tollen Text vom Lied mit seinen Taten herankommt. Sehr viel arbeiten.

2017-04-23: I Removed Teaser Content from My Link-Only Feed

I was thinking of getting rid of content in my RSS/Atom feeds.

Today, I changed the link-only feed so that it does not include the teaser text and therefore does not contain invalid XML snippets. To compensate that, I introduced a new (third) feed which provides teasers. Read about it on How to use this blog efficiently.

So if you did subscribe to my link-only feed, you will not see any teaser content any more. If your feed tool did not have any issues in the past, you can think of switching to my new teaser-feed.

I updated the feed section of my how-to-use-this-blog-efficiently article so that it is more descriptive and give a bit of a background on the differences of the three main feeds.

If you do face issues with my (new) teaser feed or my (old) content feed, switch to the link-only feed. In this case you have to open the articles in your browser instead. Sorry for that inconvenience.

2017-04-23: I Am Thinking of Switching to Link-Only-Feeds for This Blog

Update 2017-03-30: Remark on NewsBlur

Update 2017-04-23: Added link to blog article with my decision and changed I made.

Hi!

In the past, Christoph did inform me of many cases where the Atom-feed of my blog had formal issues so that his reader did complain.

I learned that the XML of a valid Atom feed is quite different to the HTML code for the browsers.

By the way: The feed aggregator of my choice and my feed app which is connecting to the aggregator did not have any issue at all whereas other clients stopped working.

Case by case I fixed XML issues, mostly via search-and-replace of things like mdash to its numeric variant or fixing HTML-snippets of Twitter or Amazon that were valid HTML but not valid feed-XML.

Read the whole article ...

2017-04-23: Synchronize a Todo List Via a Cloud-Based App

Think about following situation:

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2017-04-22: PowerPoint is Turing Complete

If you do think that you have seen everything related to presentations and slides, watch this short video ;-)

(via fefe)

2017-04-18: GLT17: Ich halte einen Emacs Einsteiger Workshop und rede über Privacy

Bei den Grazer Linuxtagen 2017 (GLT17) habe ich zwei Slots, die ich mit Inhalten befüllen darf.

Auf der einen Seite halte ich am Workshoptag (Freitag, den 28. April) um 13:30 einen Emacs-Einsteigerworkshop. Wenn du schon immer einen Anstoß gebraucht hast, um mit Emacs endlich mal ernsthaft zu beginnen, so freue ich mich auf dein Kommen. Wie alles auf den GLT ist der Workshop gratis. Dein Notebook mit vorinstalliertem GNU/Emacs ist hilfreich, da der Workshop interaktiv ausgelegt ist.

Am Vortragstag (Samstag, 29. April) halte ich um 10:55 einen Vortrag zum Thema »Digitale Selbstverteidigung in Zeiten der Cloud«. Hierbei gebe ich einen Überblick über die aktuelle Gefahrensituation und gebe Tipps, wie man seine eigenen Daten vor dem Angreifen schützen kann.

Mein Bruder hat gleich zwei Vorträge: Homematic Teil 2 (Heimautomatisierung) und Das eigene Smart-TV-Gerät (LibreELEC auf Raspberry Pi).

Ich freue mich über regen Zustrom - die GLT sind einen Ausflug garantiert wert. Es gibt - wie immer - hochkarätige Vorträge und Workshops von lokalen und nicht so lokalen Experten. Heuer kommt beispielsweise Lennart Poettering, der bei Red Hat arbeitet und an systemd bastelt.

2017-04-18: Logical Disjunct Categories Don't Work

Many online news papers are using disjunct categories for their news channels: an article belongs to either «Politics» or «Local News» or «Business» or «Sports» and so forth. Problems arises when you've got an article dealing with the financial situation of the local football team and the political implications of it. Choose your category ;-)

There are many other examples where disjunct categories are introduced to collect digital things. I do tend to think that this is quite a popular mistake or at least a missed opportunity.

For each and every artificial, disjunct set of categories, anybody is able to derive examples which can not be associated to one single category only. This is a very easy task to do.

tl;dr: The real world does not fit into disjunct categories.

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2017-04-14: Animated GIFs

As I read the changelog of the Android Signal app, I found following line:

Raised the GIF size limit to 25MB.

From my perspective, this is a worrisome tendency.

Twentyfive Megabytes are huge. For a single animated GIF, this is really big. Consider customers using the (stupid) animated GIF feature of Signal with their limited data allowances. With an allowance of half a Gigabyte, you exceed your monthly quota (and typically pay horrible charges) after downloading only twenty 25MB-GIFs.

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2017-04-09: 31. Grazer Kleinkunstwettbewerb

Heute waren wir wieder mal beim Schaulaufen vom 31. Grazer Kleinkunstwettbewerb im Theatercafé. Der Wettbewerb wurde bereits gestern entschieden. Den E-Kleinkunstvogel erhielt Erika Ratcliffe und den Steirerkrone Publikumsvogel bekam Manuel Thalhammer.

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2017-04-08: Gestern beim Spar an der Kassa ...

Gestern beim Spar sollte ich drei Euro und neununddreißig Cent zahlen. Nach einem Check meines Kleingeldes reiche ich der Kassierin vierzig Cent und danach einen Fünfeuroschein.

Sie schaute verdutzt die vierzig Cent an, danach den Fünfeuroschein und zuletzt mich. Danach gab sie mir schweigend die vierzig Cent retour und gab mir das Retourgeld, das die Kassa anzeigte: einen Euro und einundsechzig Cent.

»Generation Taschenrechner« lässt grüßen. :-(

2017-04-08: Gravity Is Just a Habit: OK GO

If you know the awesome music videos of OK GO, then you have already seen the zero gravity video «Upside Down & Inside Out».

Yesterday, they published a cool twenty minutes video on their YouTube channel with the story behind the making of the zero gravity video. You should check it out: