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io.solarscale.de needed a rescue/fsck

May 11th, 2012

Today io.solarscale.de acted real weird. The filesystem turned read-only on me. So I rebooted the vps. When it came back it suggested fsck'ing the filesystem. So I rebooted it once more hoping that it would fsck on boot. It didn't do that. So I learned from my VPS provider how to put the system in a rescue mode and finally I was able to fsck the hd image. The system is debian and the particular filesytem is ext4 with journaling. For some reason it would mount rw before the second reboot but still manage to say it needed to fsck, how cocky! Anyhow. Everything seems sweet now. And I may have learned how to install FreeBSD on this vps too. Shall the time ever come I may do that.


OpenBSD 5.1 released, jupiter.centroid.eu built

May 1st, 2012

OpenBSD 5.1 has been released today, at least I found the OS on the ftp.eu.openbsd.org ftp server. So I wiped my vmware setup and installed it on the 160 GB SSD. Here is a paste from the top while playing a youtube video:

load averages:  0.98,  0.91,  1.00                 jupiter.centroid.eu 14:14:43
56 processes:  53 idle, 1 zombie, 2 on processor
CPU0 states: 11.6% user,  0.0% nice,  4.8% system,  0.0% interrupt, 83.6% idle
CPU1 states:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% idle
CPU2 states:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% idle
CPU3 states:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% idle
CPU4 states:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% idle
CPU5 states:  4.0% user,  0.0% nice,  0.8% system,  0.0% interrupt, 95.2% idle
CPU6 states: 13.2% user,  0.0% nice,  8.8% system,  0.0% interrupt, 78.0% idle
CPU7 states: 11.6% user,  0.0% nice,  9.8% system,  0.0% interrupt, 78.6% idle
Memory: Real: 269M/958M act/tot Free: 6994M Cache: 575M Swap: 0K/7353M
mostly idle. This thing is a beast. Yes I did turn on HT again to see if the lockups were confined only to Linux. I had another 80 GB SSD which I have now put to rest until I need a replacement SSD. Also I tried gnome but it didn't work so I'm back to using fluxbox which is fine with me.


Wildcarddnsd, pondering hacking again

April 29th, 2012

Well I had a really long break from hacking on wildcarddnsd. While reading in this SIP book (see below) I noticed that the SRV RR is not supported by W. So I'm thinking of putting that in. Anyone interested in helping with this? Other little hacks are moving the command line flags to options in the config file. If anyone is interested in doing that go right ahead! If you want a bigger challenge I need a replacement parse.c file that is nicer perhaps a YACC file (no bison!). What's on the menu for the long run? Well I hope to be getting some time to do DNSSEC sometime in the next 2 years and also the recursive resolver function I'd like to re-implement as this one is currently broken. There is lots to do you just gotta look for it.


BOINC processing coming to an end

April 29th, 2012

In this article I wrote about increasing boinc from 1 to 2 cores. It has been doing that since February 2nd. So all good things come to an end, they say and it is without regret that I'll be ceasing my processing probably around May 2nd. So I had done 3 months of processing on 2 cores. OpenBSD Europe has started shipping OpenBSD 5.1 and I fully expect my copy to get here tomorrow so that I can start installing Jupiter with OpenBSD. In this other article I wrote about being in spot 142,597 well I'm happy to report that I'm now in spot 97,043 so in the top 100,000. And also in the top 5% of BOINC participants. I think it's a job well done and I also paid for it with my electricity bill. At least I gave something back for science.


Got this new book

April 29th, 2012

Yesterday Amazon delivered this new book for me that I need for work..

Understanding the Session Initiation Protocol by Alan B. Johnston.
Partly good is that I can read this on company time.


New Job, my first week

April 28th, 2012

I have switched jobs and I want to tell about it so far. I think it's an awesome job because it's 100% remote. But like any office setup I have a voice over IP (VOIP) phone where I stay in contact with the staff and it's routed entirely over the Internet. The phone I had from before because I had contracted (technically I'm still a contractor) from this company in the past and back then we got the SIP Phone for me. The pay is sufficient for me to move out of my 1 bedroom apartment and I'm eyeing January or February of 2013 for the move. I'm hoping to get an apartment where I can dedicate 1 room to the office so that I can close the door at the end of the day. My hours are spread more over the day since work is also in north america and I'M in europe. So I have the benefit of being able to conduct maintenance on the computer systems while everyone sleeps and I'm also available during the morning hours to the company. Our systems were designed for remote consoles since that was the idea of the system architect, and it suits me 100%. I'm glad I got this job since I'd likely be unemployed again if I didn't have it. well that's all so far, but I also want to say that I'm 100% impressed.


Jupiter needed an operation

April 19th, 2012

Today I looked how hot Jupiter was and with horror I noticed the CPU was at 81 degrees Celsius. A few more Centigrade and it would have turned itself off from overheating. So I decided to clean the heatsink from dust again. See here . To my horror and after reseating the heatsink 4 times it didn't have any cooling effect. So I had to go out and buy a new heatsink/cpu cooler. I bought a Cooltek Coolforce 2. I had to unmount the motherboard from its back-panel today to install the new CPU heatsink/fan. Before


To my suprise the CPU is now 25 degrees cooler and the CPU fan is not as fast and loud. Very cool!


26 Years of Personal Computing History

April 18th, 2012

In a previous article I listed all the computers I had, by now 2.5 years later 3 more have been added. Uranus, Jupiter, and Saturn. I'm going to give a rough outline of them.

year  , computer type       , Mhz     ,acc. Mhz , RAM        ,accumulated RAM
1986  , Sinclair ZX-81      , 1    Mhz, 1    Mhz, 4        KB,  4         KB
1988  , Commodore C-64      , 2    Mhz, 3    Mhz, 64       KB,  68        KB
1992  , IBM-PC 386-SX25     , 25   Mhz, 28   Mhz, 4096     KB,  4164      KB
1994  , IBM-PC 486-66DX2    , 66   Mhz, 94   Mhz, 8192     KB,  12356     KB
1996  , Intel Pentium 120   , 120  Mhz, 214  Mhz, 32767    KB,  45123     KB
1999  , Intel P-II-350      , 350  Mhz, 564  Mhz, 131072   KB,  176195    KB
1999  , Intel P-II-350      , 350  Mhz, 914  Mhz, 131072   KB,  307267    KB
2000  , AMD Athlon 1000     , 992  Mhz, 1906 Mhz, 262144   KB,  569411    KB
2001  , Apple G3 iBook      , 500  Mhz, 2406 Mhz, 131072   KB,  700483    KB
2001  , Apple G4 Cube       , 450  Mhz, 2856 Mhz, 131072   KB,  831555    KB
2003  , Intel Pentium 200   , 200  Mhz, 3056 Mhz, 65535    KB,  897090    KB
2005  , AMD Athlon64 3500+  , 2200 Mhz, 5256 Mhz, 4194304  KB,  5091394   KB
2010  , Intel Core i7 4core , 9600 Mhz,14000 Mhz, 8192000  KB, 13000000   KB
2011  , Intel Atom N270	    , 1600 Mhz,15600 Mhz, 1024000  KB, 14000000   KB
2012  , AMD C-60 "Ontario"  , 1000 Mhz,16600 Mhz, 4096000  KB, 18000000   KB
Hard to believe that 18 GB of RAM have been accumulated in all my computers. In 2005 it was just 5 GB. Yup I'm spoiled and I'm worried about overspending. One positive factor however is that the Atom and C-60 don't use up very much electricity so I can keep them on overnight, and since Saturn (the C-60) is running windows it goes into sleep mode after I close the lid of the netboook. I haven't checked but I would assume the energy draw is little then.


Added a robots.txt file

April 8th, 2012

I want to see how much my traffic drops with this, this is what I got..

%more robots.txt
User-agent: *
Disallow: /blog/
in the future people can still reach my /private and /public folders through google.


Ordered three books

April 6th, 2012

I ordered 3 books from Amazon...

"The Art of Assembly Language"
Hyde, Randall; Taschenbuch; EUR 36,95

"Reversing: Secrets of Reverse Engineering"
Eilam, Eldad; Taschenbuch; EUR 30,40

"Hacking: The Art of Exploitation"
Erickson, Jon; Taschenbuch; EUR 40,14
I'm hoping to reach an excitement factor in the future with these.


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