HNHacker News
TopNewBestAskShowJobs

bartman

895 karma · joined January 25, 2008

Co-Founder of https://www.playtestcloud.com

Email: bart@hn.the-bart.org

submissionscomments
bartman··on CSS Killswitch
The user interface of this page is remarkable. Sign up without choosing a username or password generates the missing part. Downloading the randomly generated username/pass in a file (broken or intentional rickroll right now).

There are a lot of very small and nice elements in this page worth stealing in a future project- kudos.

bartman··on Data found in Dropbox's public folders (bottom in english)
He notified my by mail that he published my CV. As you can imagine, I was not very happy - and he removed it onto my request.

Even though I think this is a nice idea, publishing the data and even providing a .zip containing all files seems reckless to me.

bartman··on Reproducing Tesla's wireless power transfer
I was at the talk, and it wasn't very informative. Sadly, half way through the talk a free-energy wacko believing in a Hitler from the future hijacked the discussion, causing half of the people to leave.

The speaker did not address the transmission efficiency and got heavy criticism of a physics professor contradicting his explanation for the power transmission. Nevertheless it's worth watching this talk for his sophisticated simulations of Tesla coils showing the electric and magnetic fields generated by them.

bartman··on SpamAssassin 2010 Bug
Ubuntu 9.04 affected too, thanks for posting.

Summary: FH_DATE_PAST_20XX matches on yars 2010-2099.

As a workaround until the spamassasin rules are updated, the score can be lowered in local.cf: score FH_DATE_PAST_20XX 0.0

bartman··on GSM encryption broken
They are down to ~2TB for rainbow tables, calculated on GPUs, making cracking feasible. Also, the code and knowledge is put into the public: http://reflextor.com/trac/a51/wiki
bartman··on Ask HN: Please review my new startup. [Free account for HN community]
bart at customerfind.the-bart dot org
bartman··on Tell HN: My horror story as a student dealing with my University computer lab
It's too bad to hear this.

I am very satisfied with our computer labs. We're having 7 labs with about 10 PCs each, all of them equipped with recent Intel CPUs and quite a lot of RAM. Windows or Linux (Debian or SuSE I think) on all machines. Possibly all apps that you're ever gonna need installed (ranging from python+IDEs to MS Visual Studio, Qt, Gimp, MS Office, Open Office, ...). No hard disk quotas are enforced, instead there's a fair use policy. Admins are very friendly and talkable to about anything...

And if you don't like the machines in the lab, grab an ethernet cable or use the WiFi available all over the campus.

The labs are used by many students, even though I'm not aware of anyone without a laptop or a machine at home. It's just too comfortable... sit down, have all the apps, all compilers you need for your studies ready for use.

In my opinion, this is how you should run a computer lab - user friendly policies that encourage the use of the public machines. After all that helps the students to get to know each other better and help each other.

For the record, I study at Hasso-Plattner-Institute in Potsdam, Germany.

bartman··on Ask HN: Recommend a server co in Europe
I can recommend Hetzner, very good network, very good administration utilities (free web-reboots, remote console if you need it, recovery system), excellent service.

server4you however is a provider focusing on the "I need a cheap root server!"-segment, I would not recommend putting all your trust in them, they have a history of failures here in Germany.

bartman··on Yuil vs. Cuil - The hack wins hands down...
Except for the semantic part...
bartman··on Ask HN: Have you used iptables to prevent procrastination?
I actually thought about doing this quite a few times, but ran off procastinating instead of reading the man page. Will try, thanks!
bartman··on Ask YC: Why doesn't Google use better technology to build its services (e.g., Flash)?
Google uses Flash for their charts in analytics and finance.
bartman··on Ask YC: feedback on my startup
I second that. Couldn't make anything off it until I went to some page and clicked the bookmarklet to see what happens. Nice idea though!

"Watch websites for changes/updates" might be a start.

bartman··on Introducing the XMPP application server: Scalable, Distributed Twitter-esque App
That's an improvement, however, after looking at it I must say that that's not multicast. This is multiple recipients for a message.

You shouldn't need to address the recipients, presence already involves people subscribing to your "presence channel". Thus your homeserver should know how to distribute the efficiently - for example by multicast. XEP-0033 just adds redundancy.

bartman··on Introducing the XMPP application server: Scalable, Distributed Twitter-esque App
The problem with XMPPs pubsub is that they don't have a clever multicast strategy. All they it does unicast, twitter something to your 200 friends @ example.com? 200 unicast messages to example.com. (See http://www.xmpp.org/extensions/xep-0060.html 1.2.)
bartman··on Secure Strings in Javascript
Does anybody know a library like this for PHP or do I need to start coding?

At the moment my best practice is to use a printf-like function to do escaping for me, it suffers the problems described in the article though.

← PreviousPage 5 of 5