dailymotion

Ja, even een demonstratie van hoe goed beeld en geluid nog te krijgen zijn met Flash Video van 320 bij 240 pixels. Was even sleutelen, want hun framerate is niet 30 fps maar ~25.015 fps. Let wel. PAL dus.
Voordeel van dailymotion boven youtube is dat ze stereo-geluid leveren (44100Hz 96 kbit/s Joint Stereo mp3), en dat er veel te vinden is wat YouTube (al) weg heeft gecensureerd (of gedwongen weg heeft moeten halen). Beetje jammer van die lelijke blauw-wit rommel op hun site. Als ze daar grijs-wit-zwart van zouden maken, zouden ze misschien in de buurt van het succes van YouTube komen. Nadeel van dailymotion is dat vooral Frankrijk het gebeuren daar domineert en het dus engelstaligen afschrikt, maar goed, het is dan ook een Parijse onderneming, dus dat moet mogen. De videos staan fysiek in Parijs, maar de site draait ergens rond London.

We zullen ze missen

Die lieve blauwe lui van de Postbank. Om de 1 of andere reden heeft de Postbank mij in de tachtiger jaren van een supermooi rekeningnummer voorzien: 945945. Alsof ze wisten dat ze met Master Jult San te maken hadden (uit de geheime vriendenkring van Willem Alexander enzo). Alsof ze wilden zeggen: Die heeft later een miljardenbedrijf, laten we hem maar vast een belangrijk mooi nummer geven. Sindsdien konden ze bij mij natuurlijk niet meer stuk, en ben ik altijd gebleven. Een lastige klant, omdat ik zo afschuwelijk eerlijk ben, en eigenlijk nooit rood sta.

Security by obscurity

A lot of wanna-be IT-experts claim that ‘security by obscurity does not work’. That’s a load of horseshit. Every magician knows it works. Their whole profession is based on the success of obfuscation. What one does not notice, one will not take note of. What you see, you will act upon. If it’s easier to find, it’s less secure.

Take for example the (wonderful) web-based server administration software called Webmin. When you install this package on your server, it will immediately be accessible on port 10000 in your browser (http://server-address:10000). Because of that, everybody knows where to look for users who use webmin: Scan for port 10000. And as soon as some kind of vulnerability gets known about webmin, optional victims are easily found. Using webmin on its standard port is like saying:
“Hey there, I’m one of those strict idiots always using every standard setting, come look at my default machine, everything is stock config here! Come look, you will have it easy because everything works as advertised! By all means, see for yourself! No obscurity implemented here!”
Proving why security by obscurity does work: It will confuse the person who wants to break security, and it will cause a huge time-delay for your server security to be broken, if not prevent it from happening entirely! People wanting to do evil are people wanting to do evil. Often lazy, and usually idiots making mistakes like every other human being does. They assume, and they take risks, and more risks need to be taken when you have obscured things for them. The attackers suddenly need to think: “Why did he/she do this? What kind of strange machine is this?” So I say:
Security by obscurity works wonders. It will *always* be much more secure to obscure than to be insecure. It will chase away those who expect standard insecure setups. Obscurity is one hell of an extra security layer you should never underestimate.

YouTube resolutions

Has anyone ever noticed how the actual displayed resolution of video on the YouTube website is 449 x 337 pixels? Really strange values. So if you create video and your target is the YouTube website, you may want to use those values if you don’t want any resizing artifacts. When you upload a video to PooTube, their servers convert it to 320 x 240 pixels, and after that the flash-player fucks it up (stretches it out). I would advice to downsize the video you upload yourself, it will probably be better quality than the way YT does it for you.
I also noticed how their “embed” object code gives even stranger values:
width=”425″ height=”350″
which is a ratio mismatch conversion of their default video-size either way. In fact, if you post a YouTube video on your own website (like I do sometimes), the grey flash-player control part is different from that on the YouTube site itself (it’s smaller), which is another parameter to take into account.

The embed code should actually have these values if you want to make the video look like how it is shown on YT:
width=”449″ height=”369″
and the embed code should have the following values if you want your video to look most like the original upload:
width=”320″ height=”259″
(Note that these size-values appear in the embed code twice.) I’ve tested this in both linux and Windows browsers, using the latest shockwave/flash-player plugins.