Centroid.EU Blog

Merry Christmas and Happy Solstice!

December 22nd, 2011

Well Christmas isn't around truely yet, but I'm sure Maria felt something by now, those 2000 some odd years ago. I want to wish you a happy solstice today and you may not know this the solstice is for me christmas and new years in one. But I do honor the christian tradition too and we don't open our presents until the 24th (24th is german tradition to open presents on xmas eve).

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Solstice in 5 days

December 17th, 2011

Once again the solstice is upon us. For northern people like me, it's the winter-solstice. For southeners like Australians the summer solstice is approaching. This solstice according to wikipedia is on the 22nd of December.

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Natally enables IPv6 on my parents computer Neptun

December 11th, 2011

I finished porting the changes I've made to the openbsd client for natally to Linux. On my parents computer then I'm able to do:

root@neptun:/etc# ping6 ipv6.google.com
PING ipv6.google.com(bw-in-x69.1e100.net) 56 data bytes
64 bytes from bw-in-x69.1e100.net: icmp_seq=1 ttl=53 time=81.6 ms
64 bytes from bw-in-x69.1e100.net: icmp_seq=2 ttl=53 time=80.2 ms
^C
--- ipv6.google.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 80.248/80.927/81.607/0.736 ms

Among google facebook also works over IPv6 (www.v6.facebook.com). I'm very happy that natally works the way I planned for it. In the future though I'M going to make some routing code changes with it... stay tuned for that.

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2011, a look back

December 10th, 2011

Last year we did the "look back" on December 10th as well so here is a sum up for this year that passed (hard to believe 2011 is almost over)...

January 4th - Received the Lanner FW 7530B per parcel
January 21st - 1st mention of SVP Radio
January 31st - quit the proteus VPS and transfer of solarscale.de to joker.com
February 2nd - CKLN my favourite radio station at the time has until Feb. 12
		to shut down..
February 4th - got a DSL upgrade (contract for 2 years) 18 Mbps down/ 1Mbps up
February 18th - did clock.centroid.eu IPv6 traceroute faker with time display
March 12th - first mention of Fukushima nuclear powerplant meltdown
April 17th - CKLN 88.1 goes off air
April 19th - Wildcarddnsd at BETA_6
April 26th - Demonstration against nuclear power
April 29th - Upgraded to OpenBSD 4.9
May 8th - Ordered two books on PHP
May 19th - Stargate Universe (SGU) show is over and will be missed...
May 20th - found a bug in dspam which is used at one work of mine
May 21st - 1 to 4 documentary on Hip-Hop in Toronto featured
May 27th - I'm back working, for 1.5 euros an hour (no minimum wage)
June 2nd - cleaned heatsink and reduced CPU temperature article
June 5th - bought a book on Windows System programming
June 13th - source code to exploit to crash Speedport W303V Type A router
June 25th - my second windows program
July 22nd - Space Shuttle Atlantis does its final landing
July 30th - upgraded my dads macbook to OS X Lion
August 5th - turned on comments on this blog
August 6th - got a new VOIP phone (Grandstream GXP 2100)
August 7th - showcase of SVPRadio with pictures from the Compudoc
August 10th - 1/6 of my Internet traffic is over IPv6
September 3rd - Free Bradley Manning (billboard sighted in Kansas City)
September 17th - Wildcarddnsd does passive AXFR now
September 28th - first draft of Wildcarddnsd Handbook written
October 2nd - Our blackbirds are observed to be reduced in numbers 
October 4th - Business cards for EuroBSDCon 2011
October 10th - Photos from EuroBSDCon 2011
October 13th - Dennis Ritchie, father of C and UNIX dies
October 26th - the world reaches 7 billion humans
November 1st - OpenBSD 5.0 Released
November 4th - uranus upgraded to OpenBSD 5.0
November 7th - got a new VPS from Hetzner Online, this one is io.solarscale.de
November 11th - upgraded anti-virus
November 15th - donated 25 euros to wikipedia
November 17th - BIND 9.8.1-P1 is released fixing a nasty bug
November 21st - netbooting OpenBSD/macppc
December 5th - mars.centroid.eu (OpenBSD/macppc) is back with a new SSD drive
December 7th - Natally does IPv6 redirects now (sorta like NAT but not PAT)

This year was a very good year for me. Hoping to make it even better in 2012!

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Sample IPv6 traceroute through Natally

December 7th, 2011

I have set it up so that Natally which is run on a Linux VPS tunnels for an OpenBSD client. Here is a demonstration:

# sh run        
opened tun0 for communications
# ifconfig tun0
tun0: flags=51 mtu 1500
        priority: 0
        groups: tun
        status: active
        inet6 fd00:1000::1 ->  prefixlen 64
# host www.v6.facebook.com
www.v6.facebook.com has IPv6 address 2620:0:1cfe:face:b00c::3
# route add -inet6 2620:0:1cfe:face:b00c::3 fd00:1000::2
add host 2620:0:1cfe:face:b00c::3: gateway fd00:1000::2
# traceroute6 www.v6.facebook.com
traceroute6 to www.v6.facebook.com (2620:0:1cfe:face:b00c::3) from 2001:a60:f074::30, 64 hops max, 12 byte packets
 1  * * *
 2  2a01:4f8:d13:6::1  20.055 ms  14.481 ms  11.987 ms
 3  2a01:4f8:0:d0:4:0:10:2  29.143 ms hos-tr2.juniper1.rz10.hetzner.de  20.25 ms 2a01:4f8:0:d0:3:0:10:2  26.594 ms
 4  hos-bb1.juniper4.ffm.hetzner.de  15.75 ms  15.841 ms  16.297 ms
 5  20gigabitethernet4-3.core1.fra1.he.net  17.108 ms  17.924 ms  18.068 ms
 6  10gigabitethernet5-3.core1.lon1.he.net  35.179 ms  40.085 ms  31.783 ms
 7  10gigabitethernet7-4.core1.nyc4.he.net  104.398 ms  104.567 ms  99.631 ms
 8  10gigabitethernet2-3.core1.ash1.he.net  103.884 ms  106.854 ms  103.058 ms
 9  2001:470:0:1bf::2  104.096 ms  104.525 ms  104.519 ms
10  ae2.bb01.iad1.tfbnw.net  104.524 ms  104.846 ms ae1.bb02.iad1.tfbnw.net  104.712 ms
11  ae14.bb01.sjc1.tfbnw.net  165.751 ms ae12.bb02.sjc1.tfbnw.net  165.193 ms  168.688 ms
12  ae2.pr01.sjc1.tfbnw.net  165.496 ms  165.883 ms ae0.pr01.sjc1.tfbnw.net  166.808 ms
13  * *^C

As you can see the first hop is through Hetzner Online (20 ms latency due to my DSL) which is my VPS provider. I still have ideas for Natally in v6 mode so stay tuned.

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mars is back

December 5th, 2011

Well I finally was able to put the SSD in mars. Here's a clip from the dmesg as that's all that's changed:

$ dmesg|grep wd0
wd0 at wdc0 channel 0 drive 0: 
wd0: 16-sector PIO, LBA48, 61057MB, 125045424 sectors
wd0(wdc0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2
root on wd0a swap on wd0b dump on wd0b

The speed is pretty nice. I can upload to the box at 5MB/s and reading and writing files is somewhere between 15 and 18 MB/s. And the best thing about the G4 Cube is now that it's soooo purring quiet (minus the purring).

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Hacking on Natally again

November 29th, 2011

I'm back hacking on Natally. This time I want to put in routines for NAT for IPv6. Basically I want to give my network a ULA block and then use the IPv6's on my VPS which do a "redirect" back. All this because Hetzner Online doesn't allow extra "true" V6 /64's for VPS customers, we just get 1 which have to be bound on the external interface or we get no routing. So this is where natally comes in. I'm doing this too because I don't know how long the sixxs.net tunnel at my provider will last. I heard they have a pilot project to get native v6 already without tunnels so perhaps one day the tunnelling will cease and I might lose my v6 block. Also VDSL is rolled out but not at my provider so I may want to switch one day. We'll see.

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mars loses harddrive, new SSD ordered

November 25th, 2011

Mars died with a uncorrectable data error in the harddrive. I made backups from it and I'm going to build what this guy did: SSD in a powermac G4 Cube. It cost 147 euros for the card and the adapter and I hope it'll work out. The positive thing is that I can reuse the SSD if I don't like mars anymore.

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My C Primer hits 10,000 views

November 22nd, 2011

The C primer I wrote (with corrections from other guys) has hit 10,000 views. It's very popular on the Internet it seems. I thank you for the views if you visited it, and I hope you were not dissapointed. My goal is to make newbies able to write input and output of data with the C programming language. I don't know if I succeeded, but I got a thank you for this before.

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mars.centroid.eu dmesg

November 22nd, 2011

I've owned this computer 10 years now. When I bought it it ran OpenBSD 3.0 or so (back when there was still OpenBSD powerpc). In the meantime it loaded Mac OS X, ran for my parents and then it was mothballed... well I saved it didn't I.

[ using 490376 bytes of bsd ELF symbol table ]
console out [ATY,Rage128Pd]console in [keyboard] , no keyboard attached, trying 
usb anyway
: memaddr 94000000 size 4000000, : consaddr 96008000, : ioaddr 90020000, size 20
000: memtag 8000, iotag 8000: width 640 linebytes 768 height 480 depth 8
Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California.  All rights reserved.
Copyright (c) 1995-2011 OpenBSD. All rights reserved.  http://www.OpenBSD.org

OpenBSD 5.0 (GENERIC) #69: Wed Aug 17 10:17:02 MDT 2011
    deraadt@macppc.openbsd.org:/usr/src/sys/arch/macppc/compile/GENERIC
real mem = 805306368 (768MB)
avail mem = 768524288 (732MB)
mainbus0 at root: model PowerMac5,1
cpu0 at mainbus0: 7400 (Revision 0x209): 450 MHz: 1MB backside cache
mem0 at mainbus0
spdmem0 at mem0: 256MB SDRAM non-parity PC133CL2
spdmem1 at mem0: 256MB SDRAM non-parity PC133CL2
spdmem2 at mem0: 256MB SDRAM non-parity PC133CL2
memc0 at mainbus0: uni-n
kiic0 at memc0 offset 0xf8001000
iic0 at kiic0
mpcpcibr0 at mainbus0 pci: uni-north, Revision 0xff
pci0 at mpcpcibr0 bus 0
pchb0 at pci0 dev 11 function 0 "Apple Uni-N AGP" rev 0x00
vgafb0 at pci0 dev 16 function 0 "ATI Rage Fury" rev 0x00, mmio
wsdisplay0 at vgafb0 mux 1: console (std, vt100 emulation)
mpcpcibr1 at mainbus0 pci: uni-north, Revision 0x16
pci1 at mpcpcibr1 bus 0
pchb1 at pci1 dev 11 function 0 "Apple Uni-N" rev 0x00
macobio0 at pci1 dev 23 function 0 "Apple Keylargo" rev 0x03
openpic0 at macobio0 offset 0x40000: version 0x4614 little endian
macgpio0 at macobio0 offset 0x50
macgpio1 at macgpio0 irq 47
pgs0 at macgpio0: irq 55
"i2s" at macobio0 offset 0x10000 not configured
"escc-legacy" at macobio0 offset 0x12000 not configured
zsc0 at macobio0 offset 0x13000: irq 22,50
zstty0 at zsc0 channel 0
zstty1 at zsc0 channel 1
"timer" at macobio0 offset 0x15000 not configured
adb0 at macobio0 offset 0x16000 irq 25: via-pmu, 0 targets
apm0 at adb0: battery flags 0x9, 0% charged
kiic1 at macobio0 offset 0x18000
iic1 at kiic1
wdc0 at macobio0 offset 0x1f000 irq 19: DMA
wd0 at wdc0 channel 0 drive 0: 
wd0: 16-sector PIO, LBA, 19623MB, 40188960 sectors
atapiscsi0 at wdc0 channel 0 drive 1
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0:  ATAPI 5/cdrom re
movable
wd0(wdc0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2
cd0(wdc0:0:1): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2
wdc1 at macobio0 offset 0x20000 irq 20: DMA
wdc2 at macobio0 offset 0x21000 irq 21: DMA
ohci0 at pci1 dev 24 function 0 "Apple USB" rev 0x00: irq 27, version 1.0
ohci1 at pci1 dev 25 function 0 "Apple USB" rev 0x00: irq 28, version 1.0
"TI TSB12LV26 FireWire" rev 0x00 at pci1 dev 26 function 0 not configured
usb0 at ohci0: USB revision 1.0
uhub0 at usb0 "Apple OHCI root hub" rev 1.00/1.00 addr 1
usb1 at ohci1: USB revision 1.0
uhub1 at usb1 "Apple OHCI root hub" rev 1.00/1.00 addr 1
mpcpcibr2 at mainbus0 pci: uni-north, Revision 0x16
pci2 at mpcpcibr2 bus 0
pchb2 at pci2 dev 11 function 0 "Apple Uni-N Eth" rev 0x00
gem0 at pci2 dev 15 function 0 "Apple Uni-N GMAC" rev 0x01: irq 41, address 00:3
0:65:a1:ec:a6
lxtphy0 at gem0 phy 0: LXT971 10/100 PHY, rev. 1
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
scsibus2 at softraid0: 256 targets
bootpath: /pci@f2000000/mac-io@17/ata-4@1f000/disk@0:/bsd
root on wd0a swap on wd0b dump on wd0b

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