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energy efficient router hardware

  • small/energy efficient
  • running linux/beeing flexible
  • http://www.soekris.com/ – boards with up to 500mhz cpus, not cheap
  • Linksys WRT 54 GL (blue). runs OpenWRT, DD-WRT, FreeWRT (?)
  • linksys wrt160nl
  • wlan-router: Asus WL500gP, Linksys WRT54GL, Netgear WNR3500L
  • Fritzbox 7270, 16MB RAM / 64MB Flash, USB 2.0

webcam w/ usable linux driver

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

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

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

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”
 
snippets/trashcan.txt · Last modified: 2010/01/15 20:31 (external edit)     Back to top