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energy efficient router hardware / hardware for playing

power supply

  • seasonic SS-350RT (350W)
  • FSP Fortron/Source Aurum Gold 400W

tablets

webcam w/ usable linux driver

  • logitech quickcam pro 9000 linux-uvc.berlios.de

bluetooth headset, usable linux driver

creation of webpage with camera-pictures

rsync -arv DCIM/ /mnt/store/japan2010/             # copy over new pictures
apt-get install album album-data jhead
cd /mnt/store/japan2010
find . -name '*.JPG' -type f -exec jhead -ft {} \; # set file modification time to Exif time

spam fighthing

greylisting
  - delay for first mail from a domain

envelope-from checking

requirement to have a valid FQDN in HELO/EHLO (though it does not have to resolve).

postfix: directly sorting out in /etc/postfix/header_checks or /etc/postfix/body_checks

mxallowd, refuses mail on first mx and sees if delivery to second mx is tried

realtime blacklists like
  socks.dnsbl.sorbs.net / dul.dnsbl.sorbs.net / ix.dnsbl.manitu.net / cbl.abuseat.org
  sbl-xbl.spamhaus.org / bl.spamcop.net / web.dnsbl.sorbs.net
  con: gotta trust the lists, they can censor that way    
    

That still leaves me with a hundred to two hundred spams per day, all
but a few per week of which are caught by spamprobe, which is a Baysean
filter.

Reject senders with reverse DNS containing their IP
  also catches homesend mails so.. really strips down.
  
Reject senders with reverse subdomain containing blacklisted works 
  (ex: *dyn*.foo.com, *dsl*.foo.com, *ppp*.foo.com, ...)
  
Reject senders which are not MX

BGP interaction simulation

  • linux-boxen with quagga
  • cisco-emulation dynamips (GNS3 frontend), Olive

linux/touchscreen devices/projects

books2read

  • Charles Stross: “The Atrocity Archives”, “The Jennifer Morgue” (Dilbert-meets-Lovecraft-meets-Bond content)
  • Charles Stross: “Halting State”
  • Strunk & White: “The Elements of Style”, on writingstyle
  • Weizenbaum: on human/computer relation
  • Nihon Keizai Shinposha: “Manga Nihon Keizai Zeminaru”, Manga version (ISBN-13: 978-4532087579)
  • van Wolferen: “The Enigma of Japanese Power” (ISBN-13: 978-0679728023)
  • Ruth Benedict: “The Chrysanthemum and the Sword” (ISBN-13: 978-0618619597)
  • John W. Dower: “Embracing Defeat: Japan in the Wake of World War II” (ISBN-13: 978-0393320275)
  • Michael Fitzgerald: Learning Ruby. 23$, (ISBN-13: 978-0596529864)
  • Peter Cooper: Beginning Ruby: From Novice to Professional, 34$, (ISBN-13: 978-1590597668)
  • John Benson: Eyewitness Travel Guide. Japan, 15€, ISBN-13: 978-1405339131
  • Jan Dodd: The Rough Guide to Japan 4, 15€, ISBN-13: 978-1843539193
  • GEO Special 6/2006: Japan, 8€, ISBN-13: 978-3570197462
  • Lothar Lochmaier: Die Bank sind wir / Chancen und Perspektiven von Social Banking, 15.90€, ISBN 978-3-936931-64-8
  • Karsen Kruschel: deutsches scifi, i.e. “VILM 01. Der Regenplanet”
  • Daniel Suarez: Daemon / Darknet
  • scifi:
scifi Sheckley http://en.wikipedia.org/wiki/Robert_Sheckley
dramocles is funny, but immortality, Inc and Journey Beyond Tomorrow (also called hourney of joenes) are musts
get thee some E.E. Doc Smith: http://en.wikipedia.org/wiki/Family_D'Alembert
http://en.wikipedia.org/wiki/Stainless_Steel_Rat
Consider Phlebas, byt Iain M. Banks

HA-clustertesting

  • Problem: many clusters (veritas vcs with io-fencing, steeleye lifekeeper) use scsi-3 persistant reservation to avoid splitbrain situations - this isnt emulated by kvm/xen/vmwave(any-version).
  • unchecked solution: recent versions of solaris/opensolaris seem to offer this in their iscsi-target http://bugs.opensolaris.org/view_bug.do?bug_id=6415440

japanese linux

trash

fujsie iRMC default user/pass admin/admin

ipv6 linux

  • testing: photo.beverly.kleinbus.org
  • tunnel: sixxs.net

tcpdump

  • cd /tmp; tcpdump -C 1 -i em1 -nv -w tcpdump.bin -W 3 # create rotating 3 files a 1MB of the last traffic on the interface

dnssec

  • dns CERT entry for x509 certs, so webserver certs can be verified without using CAs
  • SSHFP: verification of ssh-known-hosts entries (dig -t SSHFP home.dyndns.hauke-lampe.de)
  • CERT: usage for verification of PGP-keys, CERT contains fingerprint & URL to pubkey (dig -t CERT lampe.hauke-lampe.de)
  • RFC2538bis, echo Test |gpg –auto-key-locate cert -er lampe@hauke-lampe.de

tvbrowser and other java-apps on linux not working any more

  • Problem: “util.exc.TvBrowserException: Could not download group file http://tvbrowser.org/listings.” appears, “java.net.SocketException: Network is unreachable” or “It was not possible to create an Internet connection”
  • Description: your linux-distro changed behaviour with an update, java is just trying ipv6 connection here and fails.
  • Solutions:
    • 'sysctl -w net.ipv6.bindv6only=0' orders to also try ipv4 connections, use /etc/sysctl.conf for the setting to survive reboots.
    • or run java with these additional parameters: ”-Djava.net.preferIPv4Stack=true”

linux

notifys of dir/file changes
  • dnotify: old (from 2.4.x), restricted
  • inotify: current (introduced 2.6.13), offers much, fs-independent
  • fanotify: bleeding edge (* 2.6.36), not much functionality yet
  • btrfs will include effective change-tracking, enabling fs-level mirrors etc.
video editing software
  • Openshot
  • Kdenlive
  • OpenMovieEditor
  • Pitivi
  • Kino
  • cinelerra
  • ProjectX

linux screen recorder

dumping rtmp streams

yum -y install rtmpdump
rtmpdump -r 'rtmp://whole-url' -o beethoven

my hardware around

  • sgi Indy / generation IP24 / cpu R4x00 / http://www.netbsd.org/ports/sgimips/ / rj45 / strange serial
  • digital personal decstation 5000/25 / 25MHz MIPS R3000A RISC / 8-40mb ram / MAUI
  • DEC vaxstation 3100
  • alphastation 255 / 233 mhz / 64mb ram 1gb disc
  • SUN Ultra 5
  • FSP Fortron/Source Aurum Gold 400W
 
snippets/trashcan.txt · Last modified: 2012/01/01 15:21 by chris     Back to top