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June 21 2018


So, what is this all about? Every now and then I want to try if I can solve some programming problem and make a tiny new project for that. For convenience I publish them on GitHub so I can clone them and play with them from multiple computers. Maybe someone else finds it and it helps someone, who knows.

I could name those tiny (not so) throw away projects like “testthis” or “evaluatethat” or come up with some more or less matching name, but GitHub has a nice feature when creating new repositories, GitHub makes a naming suggestion and I just pick that. See:

Screenshot GitHub new repository creation

Create a new repository on GitHub

Over time the number of those projects grew and to not lose track of them, here is a list:

May 30 2018

Bridges with meaningful error messages

Just wanted to create a network bridge interface on an embedded Linux system. First try was with the well known brctl and I got this:

$ brctl addbr br0
add bridge failed: Package not installed

Searching the web for this, led me to an old blog post which comes to this conclusion:

So that’s the most silly way to say: you forgot to compile in bridge support into your kernel.

ip from busybox is a little more helpful on that:

$ /sbin/ip link add name br0 type bridge
ip: RTNETLINK answers: Operation not supported

And yes, the “real” ip from iproute2 is also as helpful as that:

$ /usr/sbin/ip link add name br0 type bridge
RTNETLINK answers: Operation not supported

And yes, somehow they are all right, it is actually my fault:

# CONFIG_BRIDGE is not set

I’m going to change my kernel config now …

Flattr this!

May 13 2018

April 15 2018

April 05 2018

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*Unfriendly territory 

March 01 2018

6706 a785 500


Can any geologists confirm??

January 17 2018

Many adults are put off when youngsters pose scientific questions. Children ask why the sun is yellow, or what a dream is, or how deep you can dig a hole, or when is the world’s birthday, or why we have toes.

Too many teachers and parents answer with irritation or ridicule, or quickly move on to something else. Why adults should pretend to omniscience before a five-year-old, I can’t for the life of me understand. What’s wrong with admitting that you don’t know? Children soon recognize that somehow this kind of question annoys many adults. A few more experiences like this, and another child has been lost to science.

There are many better responses. If we have an idea of the answer, we could try to explain. If we don’t, we could go to the encyclopedia or the library. Or we might say to the child: “I don’t know the answer. Maybe no one knows. Maybe when you grow up, you’ll be the first to find out.

— Carl Sagan (via nasa-official)

November 08 2017

Die Stadt der Träumenden Bücher by Walter Moers Alexander is on page 36 of 456 of <a href="/book/show/1491133.Die_Stadt_der_Tr_umenden_B_cher">Die Stadt der Träumenden Bücher</a>.
Die Stadt der Träumenden Bücher by Walter Moers Alexander is currently reading Die Stadt der Träumenden Bücher by Walter Moers

October 21 2017

Duplo dokumentieren

October 04 2017

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A hero in more ways than one


Always always reblogging this if I see it on my dashboard

October 03 2017

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Star Trek Discovery S01E03 has Michael Burnham looking through code on a secret project that she believes is related to “biochemistry, possibly a genome expression.”

The code is actually decompiled Stuxnet. https://github.com/Laurelai/decompile-dump/blob/master/output/37FC7C5D89F1E5A96F54318DF1A2B905/37FC7C5D89F1E5A96F54318DF1A2B905.c

August 16 2017

HowTo: Debug core dumps with ptxdist 2017.07.0
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When someone says these days sexism and misogyny don’t exist anymore show them this.

August 01 2017

June 20 2017

Do not change already released files!

June 15 2017

dropwatch moved

June 12 2017

May 09 2017

April 10 2017

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