kephra

16 ms·

91.
by kephra 12y ago
I once learned, in the good old mainframe times, that there are 3 sizes of databases: Small size that fit into RAM, medium size that fit on one computer, and big databases, that require a cluster of computers. The relational model, and SQL
92.
by kephra 12y ago
Its winter soon, at least here. Time to maintain motorbikes or sailing boats. Do you know any craft, e.g. sewing, that could be used to make money in that market. Motorbike saddles, tarpaulins, seats and cushions are things I produce when t
93.
by kephra 12y ago
The Sheep Look Up by John Brunner is still my favorite novel while A Ticket to Tranai by Robert Sheckley is my preferred short story.
94.
by kephra 12y ago
An interesting though, especially the view on MMORPGs. I wonder that he did not name Second Life as a prime example of how cloud based content could rot. First mainy normal products are no longer available, because the creator stopped playi
95.
by kephra 12y ago
The problem of both locality and length also only exist in modern databases. Good old Ingres QUEL offered the choice of hash and btree indexes, and the the ability to compress indexes. Index compression is of course much easier with sequent
96.
Drebin: Effective and Explainable Detection of Android Malware [pdf](user.informatik.uni-goettingen.de)
2 points by kephra 12y ago|0 comments
97.
by kephra 12y ago
Even worse! Lets look at the Orbit web framework. This framework was (and likely still is) broken because a dependency to a pattern matching library that changed. The patch is only a few lines, but a door stopper for anybody who tried Lua f
98.
by kephra 12y ago
There are three types of documentation: 1st documentation inside the code should be used sparse. The code should be obvious, and PHP code could be readable, if you use good names, and proper indention. Comments should only point to traps an
99.
by kephra 12y ago
I boot into backup cycle: I have a host running DHCP, TFTP, NFS and Linux containers. Every system I install in my intranet is first created on this host. Its then booted over PXE, to sync itself to disc. The crontab contains a sync back to
100.
by kephra 12y ago
I never played with Swift, as its an Apple gimmick. I only read the wikipedia article right now, claiming its a compiled language. Are you able to inspect variables in a running systems, are you able to change the running code without resta
101.
by kephra 12y ago
There are two programming language environments, or better to say operating systems, that are designed for this kind of immediate coding: Forth and Smalltalk. Forth plays its strength when controlling hardware. Your code is immediate execut
102.
by kephra 12y ago
Build a pile of small (Ruby) applications. Small in terms that the prototype could be delivered in weeks, and only needs a few weeks till production. So first step is to fine "easy jobs" that you can solve faster then others, and
103.
by kephra 12y ago
http://pwdr.github.io/ <- this nice and cheap DIY 3d printer can print on powder sugar, gypsum and other powders.
104.
by kephra 12y ago
Or a common HN DDoS, and a failed try to fix performance problems. 67 points on HN can kill a typical wordpress blog.
105.
by kephra 12y ago
People who have an 1 Euro job, or are "educated" to write job applications are no longer counted as unemployed. This is a nice statistical trick to lower the high numbers. And even then the long term unemployment is extreme, with
106.
by kephra 12y ago
Thats how they sell it, but the real goal was very different. To cite our former Chancellor Schröder: " Wir müssen und wir haben unseren Arbeitsmarkt liberalisiert. Wir haben einen der besten Niedriglohnsektoren aufgebaut, den es in Eu
107.
by kephra 12y ago
But when capitalist talk about Job Guarantee, they do not want to reinstall the stable jobs of communist times. Regardless if there was work or profit, you had a job in DDR or Poland. But they think about 1 Euro Jobs like those installed in
108.
by kephra 12y ago
I'm using domain factory, df.eu. The prices are ok, but their web interface is a bit confusing.
109.
by kephra 12y ago
Join a hacker space, and found a RoboCup Junior league team. Junior league is one of the cheapest and easiest classes in robot soccer, and its normal that the kids have adults to help them. evil grin Our hacker space Junior team has good
110.
by kephra 12y ago
thanks ! Yes, Class C = /24. So a class C is only $2500 to $5k, minus 25% is not worth the work of selling it. I think I'll continue using it for OpenVPN, where its nice that my real IP addresses never conflict with any private n
111.
Ask HN: How to sell a PI class C network?
3 points by kephra 12y ago|2 comments
112.
by kephra 12y ago
My site made it several times to HN main page. Rule of thump is, that every upvote equals about 100 visitors, while the site is on HN, and that about same number of visitors come during the next days by tweets and facebooks.
113.
by kephra 12y ago
tried two images: http://kephra.de/Dampf/IMG_20140620_133839_800x600.jpg <- an ecigarette, and the classifier thought its a fountain pen. Well thats not bad, I got this joke/question from humans also. http:&#x
114.
by kephra 12y ago
Markov chains work well for artificial language and name generations. One of my first programs in 1979, when I was a 13yr old kid, was to sum up the occurrence of characters following other characters in text files, and to roll dice on this
115.
by kephra 12y ago
Unfortunate they provide even less information to calculate the plausibility of claimed payloads and orbits then SpaceX. And we all know that SpaceX changed its specs and claims several times, and that none of those specs provide a plausibl
116.
by kephra 12y ago
$300 per month? You can finance and colocate big server for that price, as one of my customers does. $300 could also be used to rent 5-10 real servers in different countries, to run your own cloud with GeoIP and Linux containers. An other c
117.
by kephra 12y ago
An interesting point is that the meter is off by 0.2%. Not bad you might think, but compare it to the Summerian Kù of 51.85cm of the copper of Nippur and its derived unit SAR of 3600 Kù being 1866.6 meter being only 0.77% off from an arc se
118.
by kephra 12y ago
> I have one idea for how to do that, through a network of peer-to-peer search engines, and I hope to post it soon. This was 2002 ... Is there any follow up posting on it? I'm actively developing a censor free distributed search eng
119.
by kephra 12y ago
I have no free time. The common curse of every coder are infinite ideas vs. limited time. So if I want to take free time from this curse, I would go offshore sailing for half a year to ensure I have no internet.
120.
by kephra 12y ago
Wizards of the Coast was bootstrapped without nearly any cash, in the unusual way that artists had been payed in shares. It was sold to Hasbro for US$325 million in 1999.

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