Centroid.EU Blog
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October 25th, 2010
Well, I got the OpenBSD 4.8 CD's in the mail today. I'm very happy about this.
I'll be building dione.centroid.eu with this soon.
I made an install video (like I do every release) you can watch it
here.
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My dream, triple redundancy
October 22nd, 2010
I made this picture with xearth and it shows the VPS's I have except in
singapore. I'd like to have a VPS in Singapore too but it's expensive last
I checked (something like 50 singaporean dollars which is like over 20 euros
a month). If centroid.eu ever makes money I'll consider the singaporean
VPS and balance traffic globally in such a manner that ASIA-Pacific traffic
goes to Singapore,
EMEA traffic goes to proteus which is in
France and Americas
traffic goes to goldflipper.net which is in
Panama.
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Multiculturalism dead? Is melting pot better?
October 20th, 2010
This past weekend german Chancellor Angela Merkel declared multiculturalism
dead in Germany, and the key word for strive is now "Integration". This
means people who immigrated to Germany have to learn the german language
foremost and try to fit the norm. To me it just means giving up. In the
model of culture, multiculturalism is the hardest to sustain. Just like in
the model of politics democracy is weaker than a dictatorship. But we don't
want to go there because dictatorships are politically incorrect, yet, they are
easy to have. Just like the melting pot. I don't know how long Germany had
multiculturalism. It was even the first time I heard of it this weekend,
meaning it barely touched the population. But I'm pretty sure that the so-
called multiculturalism will have left a minute trace of positive in the
fabric of culture. Something that Angela Merkel and her exceedingly right
shifting party will.. or may never get. The harder a civilization tries to
uphold the weak, different, and minority the stronger it is
in its roots, and the more likeable it is in the end.
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Downtime Wednesday/Thursday
October 19th, 2010
On the night of Wednesday at 11PM CEST until 8AM Thursday morning CEST, proteus
the main solarscale.de/centroid.eu server will be down. So there might be a
service interruption in reading this blog (oops). Proteus is moving to
Strasbourg, France from Frankfurt, Germany. The details on Europes greenest
data center where this is moving are found
here. I'm gonna see if I can move the
DNS balancing to the Panama VPS for the time being (I just hope I don't forget
to undo it after the move).
PS: The maintenance went fine.
Oct 20 23:13:06 proteus exiting on signal 15
Oct 21 05:50:23 proteus syslogd 1.4.1: restart.
That's the time that proteus was off for. So roughly 6 and a half hours.
The position of proteus in the network hasn't changed much, there is a 3 ms
difference and the routers are the same except for 1 new address. But
proteus is in France now, not Germany.
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Observing Alpha Persei
October 17th, 2010
Unfortunately I wasn't able to make a picture of this but I'll just put an
xephem screenshot out. I observed
Alpha Persei aka Mirfak
at NEE (60 degrees azimuth) at an altitude of about
30 degrees tonight at 9:44PM. I couldn't help but notice that the star was
flickering but that could have been our atmosphere at work.
Perhaps you noticed it too, I'm waiting for Capella to rise beyond the hill
that's in the way, btw.
PS: it turned out I made a mistake with the degrees altitude, the star was
actually Capella
, but I located Alpha Persei after that as well (at 50 degrees altitude).
That means I saw Capella flickering instead of Mirfak.
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Random Hackepedia
October 9th, 2010
We haven't had a random hackepedia in a while, and today I want to do something
a bit different. It's the not-so random hackepedia. I've been working on
a C Primer at Hackepedia over the last few months and want to show you the
Primer. Just click
on the link, I hope you can make something of it.
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Happy Anniversary FSF!
October 5th, 2010
Well slashdot made me aware of this. Yesterday the
FSF
turned 25. I think I even donated some duckets to them in the past too
because I remember I got a note from FSF Europe thanking me or something.
I'm not living in some fantasy world, currently, and reality is that OpenBSD
which is my favourite OS still uses the GNU compiler, gcc, and debugger, gdb
as well as gas, objdump and other utilities from the FSF. I use gdb and gcc
quite often in my development of open source software and so I gotta say
thanks again! Perhaps I'll make a donation in the future again.
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Wildcarddnsd now over 10,000 lines of C code
September 30th, 2010
Well, I've been anticipating this for a few weeks now.
Wildcarddnsd grew
to over 10,000 lines of C code. It's not all my C code though. I added
some outside code (code re-use) with the recursion stuff. There is the
arc4random() code from OpenSSH and the checksumming code from tcpdump, both
licensed with a BSD license so it's compatible to wildcarddnsd's BSD license.
# wc -l *.[ch]
440 additional.c
161 bsd-arc4random.c
180 db.h
168 dns.h
40 endian.h
73 include.h
2565 main.c
1236 parse.c
2288 recurse.c
255 region.c
2444 reply.c
183 wildcard.c
10033 total
Wildcardnsd will likely grow beyond this as there needs to be new code put in
place to make CNAME linking possible (as well as CNAME loop detection).
To make domains such as www.yahoo.com or wildcarddns.cvs.sourceforge.net work.
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Possible solution to lock-ups? Turn HT off.
September 30th, 2010
Ok so uranus.centroid.eu is a computer with the following specs:
- Cooler Master Powersupply GX 650Watts
- Corsair xms3 8GB DDR3 (4x2GB) RAM
- Intel X25-m Sata Solid-State-Drive 160 GB (vmware drive)
- Intel X25-m Sata Solid-State-Drive 80 GB (system drive)
- ASUS P6T SE Motherboard
- Intel Core i7-930 2.80 Ghz 8MB 4.8GT CPU
- MSI N250GTS Twin Frozr 1G 1GB DDR3 VGA card
- LG BH10LS30 Blu-ray Disc Rewriter
The Operating System that runs on it is Ubuntu 10.04 LTS and gives this:
pjp@uranus:~$ uname -a
Linux uranus 2.6.32-24-generic #43-Ubuntu SMP Thu Sep 16 14:58:24 UTC 2010 x86_64 GNU/Linux
I run the Gnome desktop on it and now that Hyperthreading is turned off it has
four not eight cpus. Basically I want to say to anyone who wants to buy such
a system as mine to reconsider. I'm plagued with lock-ups and
only now that I have turned hyperthreading off in the BIOS has it been stable
(so far).
The downside of having hyperthreading turned off is that programs start up slower in my opinion although they get a decent instructions per second benchmark
from BOINC. I also run BOINC (seti@home) on this machine as well as Vmware
Workstation 7.1.1 (x86_64 version) with at least 7 guests at any time.
Operating systems that run on this VMware Workstation are:
- Microsoft Windows 7 Home Edition
- Linux (OpenSuse 10.3 and Ubuntu)
- OpenBSD 4.7 (main desktop/vm)
- NetBSD 5.0.1
- FreeBSD 8.1-RELEASE
- Solaris 10 (currently off)
- DragonflyBSD (currently off)
- FreeBSD 9.0-CURRENT (currently off)
Occasionally I look at BIOS updates for the motherboard but as of last month
I had the highest version available.
I use the system for programming, system administration support (with vmware
this is easy) and everyday tasks. I don't game, this is not a gamer system
for me. I do use iTunes as I had a brief Mac OS X history.
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