Owncloud in home directory
2016-03-26
This is the first of three blog posts about moving data back from
the cloud to my local network. With the rising of smartphones and
tablets more and more people got the need to synchronize data
between computers (yes, I see tablets and smartphones as computers).
Even the tech-savvy user got troubles as the traditional ways of
syncing didn't work with the new devices. Cloud providers where
happy to get a chance for business and offered solutions. There is
only one big problem. As FSFE says it There
is no cloud, just other people's computers. Putting data on
other peoples computer means to give other people access to your
data. Here I describe my effort to keep some of my data in my own
network and not to just switch the person to which I give them (as
other articles about Google tend to do it). As a tool for this I've
chosen owncloud.
more
Serve a video with golang
2016-01-18
In my last two posts I've shown how to generate a mp4 video file. In
this post I show some go code to serve the generated file via http.
It basically boils down to a call of ServeContent in the http
package.
more
The power of ffmpeg
2016-01-17
In my last post I've shown how to convert a video for a virtual
cinema effect when viewed with Google cardboard. I used multiple
calls to ffmpeg for this. After some research I was able to reduce
it to one call.
more
Private theater with google cardboard
2016-01-15
How about watching all your films in a private movie theater? Would
be nice, wouldn't it? Well, with Google cardboard, the app VR
Theater for Cardboard and a compatible smartphone it is
possible. For about 15 minutes. Then the film stopped and the
battery went low really fast. On another occasion I've plugged my
smartphone (a Nexus 5 2013) in the charger and restarted the movie
every it stopped. After 30 minutes the smartphone rebooted because
of heating problems. It seems that the conversion of the film has to
get of the phone.
more
Homepage Facelift
2016-01-05
I hadn't changed the layout of my homepage since the relaunch in
2010. A lot happened in the web area. Frameworks like Bootstrap or Material Design Lite appeared and
I've stumbled over a tool called JBake
that generates static HTML sites. A few days before I've got time to
put all together for a new homepage I've read an interesting article
about The
Website Obesity Crisis.
more
Notes about JavaFX with Java8
2015-11-28
Recently I've made a small JavaFX application based on Java 8 as a
tech demo. Here are some notes that I've found out useful to
remember.
more
TLS with bouncycastle and programatically generated
certificate
2015-08-13
When using HTTPS your are using HTTP over a TLS secured connection.
TLS requires the site to have certificate to identify itself. The
site certificate is signed by another entity whose certificate is
signed by a root certificate which your browser knows and trusts. As
you may know you can create such a root certificate yourself and add
it to the default ones. That way you can create site certificates
that your browser trusts. I have done creating such a root
certificate and written a program that uses that root certificate to
sign a programmatically generated site certificate. As an addon I've
only used a plain socket and started wrapping the established
connection to use TLS. As there isn't much documentation for bouncycastle I'm going to
show how this could be done with this framework.
more
Implmenting CONNECT for jetty based http proxy
2015-06-13
A browser uses the CONNECT method to tell a proxy to create a
tunnel, e.g. for a https connection. See RFC 2817 for
details.
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Android vs Banshee Media Player
2014-11-01
I haven't connected an android device with my PC via USB since a
long time. As I needed to get some log data I've tried it again and
to my surprise I could access the internal memory (At the time I've
got my Galaxy Nexus this didn't work on Linux due to a bug). After
several updates of the Android SDK I've got my log data and wanted
to copy some data on the phone. It didn't work. First I've got this
error message:
more
FreeBSDBackup revised
2014-09-03
In 2012 I've blogged about a FreeBSD
based backup system. As time has passed by, the 1.5TB HD
turned out to be a little limiting and the folder organization
wasn't as good as I desired. As I've recently bought a new computer
I wanted to use this as a chance to recreate the backup system on a
4TB HD with an updated FreeBSD version (10 instead of 9).
more
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