Oh joy!

If you're committed enough, you can make any story work.
I once told a woman I was Kevin Costner, 
and it worked because I believed it. -- Saul Goodman

“Better call Saul” aires in November starring Bob Odenkirk & Jonathan Banks. I’m really looking forward for Mikes Story! Chances are this will become the best spin off ever!

These days…

There are these days where you think you didn’t got nothing done. I just wrote some (business) emails, applied for a working project, did half a penetration test and cobbled together a linux bi-amping setup with a digital crossover which works out really nice. And I finally understood what a 4th order Linkwitz-Riley filter is and why I like it. Ah, and I made some nice charts about it. Last but not least I worked another couple of hours on the van.

So today I learned something new, earned some money, did stuff from my ToDo list and produced something which I will enjoy almost every day for the next months/years (decent sound on my desk). Why do I feel bad again? There’s really no reason. I guess it’s not about the stuff I did but about the ToDo pile I didn’t finish off. I think I gotta get used to the reality that there’s always stuff to be done…

Being Sick / Linux Audio Stuff

"He is dead, Jim" -- Leonard McCoy

(posted a week or so after writing…)

I thought this might have been the first winter (ever?) without getting sick. Didn’t work out 🙁 Whatever… After even netflix became boring I had to something else.

My stereo hasn’t been the same since I moved home. Today I finally looked into the issue. Some peak performance testing before moving to Hannover fried one tweeter completely and hurt the other one badly. The automatic eq / analyzer of the amp covered this failure up somehow (being a four way system the mid speaker range is overlapping with the tweeters). Since I use the amp mostly for surround sound, the other speakers helped covering it up as well. But after I bought some JBL Control One for my Desk it became quite obvious that some frequencies are missing. I still had some tweeters from the stereo of the 190 series ( a car…) catching dust so I went for a quick fix. It turned out they are too noisy but I got them more or less under control thanks to the equalizer.

Linux provides some great tools for audio testing and they are for free. So I cobbled together an audio analyzer using the mic which came with the amplifier for setting up surround sound. The following are all frequency diagrams, x-axis is frequency, y-axis is output volume. The actual numbers don’t matter, what we are looking for is a more or less straight line indicating that the pink noise is reproduced by the speakers “as is”.

tweeters

From left to right: original tweeter, audio system, gradient

ohne_hochtöner

The Speaker with the completely fried tweeter. Note the drop!

box

Quick fix: The audio system tweeters are a little bit small for the Infinity Reference 61 Mk II Chassis

spektrum_neu

Audio System tweeters removed from the old Merc. Not too bad at all but a little bit too much. Probably because they are build for a two way system there’s too much overlap on a four way.

 

Bildschirmfoto vom 2014-03-02 12:47:26

Fancy Gradient Tweeters from ebay, used. I don’t like the peak around 8k.

Up to now the audio system + duct tape did a superior performance than fancy (and well fitting) Gradient Tweeters. Since both speakers have different volume levels on high frequencies (which you can’t see on the diagrams) there’s still something wrong. More investigation has to be done I guess. To be continued…

Nice places in and around hannover

The improving weather conditions convinced me to spend more time outdoors. Since Hannover doesn’t really have much to offer I’ll do the usual and use satellite images to find candidates for nice places and then go there to see for myself…

image

Conti viewed from the Leineabstiegskanal

image

same place…

image

Bissendorfer Moor, just north of the airport

to be continued… Feel free to contribute any recommendations…

Counterintelligence TV Streaming

Alright, streaming TV Series legally in Germany sucks for different reasons: You have to wait ages and they are mostly dubbed. I already tried watchever.de who thankfully got the orginal voice available on most programs but it still sucked. Maxdome.de failed me as well. So where to go next? Some friend suggested netflix (from the US) which apparently is not available in Germany. Hmm, I guess I read about it on the interwebs. Some research turned out netflix produces about 30% of the internet traffic in the united states, that’s No. 1 for sure and about three times youtube. Sometimes I really believe we’re living under a rock over here… I think my research into TV Streaming should include the leading product I’ve barely heard of. Also the US offers other great sites with “geoprotection” as hulu.com, cbs.com, … and last but not least the annoying “this content is not suitable for your country” stuff on youtube is unknown over there as well.

Bildschirmfoto vom 2014-01-28 08:22:19

Wherever Psy got his clicks from, it’s not Germany. Video unavailable because the GEMA (german copyright annoyance) has not granted (as in sold) the suitable rights to youtube (rough translation).

Gathering a Greencard and moving over to the States seems a little bit over the top for just watching some telly. But what does it actually need to be “inside” the USA? I mean, we are speaking about the interwebs where national borders are blurry at best. So a US-based Server with a reasonably fast Internet Connection which is acting like some kind of proxy seems sufficient. There are services like hidemyass.com who offer this for about 7-12USD / month depending on the length of your subscription. A root server costs in the US is about five USD / month payable by credit card. Hmm. Netflix also accepts my (german) credit card. Hmmmmm. All available sources suggest that this is legal as well. Hmmmmmmmm!

One thing which is bothering me as well as others is the fact that the US is spying & recording data on everybody. Being german that reminds me constantly of the STASI (eastern German intelligence) and of course of the Nazis. Not so much about spying but about having data and using it. Say what? Well, to pull off the holocaust they needed to identify Jews. So the Gestapo (Nazi intelligence) started to pull all data already available in different registers which turned out to be quite extensive on stuff which must not bother a government like religion for example. To cut a long story short: I don’t like governments to have more data as they need to fulfil their job. So the NSA kind of pisses me off. The options from here are quite limited, all I can do is to encrypt my communication. And if I do that the NSA stores any traffic they encounter indefinitely (if you don’t believe it check out Jacob Appelbaum’s talk on 30C3 and/or the documents thankfully provided by E.Snowden.). Well. If that’s not an opportunity to kill two birds with one stone: Watching HD Television though an encrypted VPN while spamming NSA Harddrives at 3GB/hour.

I wonder if this activity would trigger Quantum-whatever attacks on my networks. Hmmm. Memo to self: install suitable honeypot. I’m a security researcher after all and there may be a third bird being interested in some stones…

Ah, and dear NSA: If you happen to cut me off from US television somehow I might get tempted to get two servers with unlimited traffic and do some research on VPN performance and possible usage caps for servers with “unlimited” traffic. 🙂

(most likely reaction of the NSA I can imagine) Dear Andi: The NSA datacenter at Bluffdale (one of our approx. 40 centers in the states) is believed to have a capacity somewhere in the range of exabytes up to single digit zettabytes (it’s so secret we don’t know for ourselves). Even if you produce 1TB of traffic per day it would take between 1 Million days to 1 Billion days to fill up the harddrives. Or in other words: With just ordinary TV consumption (say 100GB/month) it’ll be at least 10 Million months to fill our storage (if traffic scales as well as HDD Space). So as long as there are not millions of people using VPN we don’t really care…

Hmm, netflix alone has about 40 Million subscribers, 10 Million of which are not stateside. Please folks, encrypt your traffic. Just for a couple of months…