Categories
IETF

draft-lendl-speermint-background-02

This time I manged to publish a new version of my speermint thesis-like I-D in time. Phew. Spending time in trains is sometimes the best way for me to focus on a single subject. That used to be easier; now with 3G on the phone I can connect to the Internet while riding trains which […]

Categories
System Administration

Getting kmail on Ubuntu to open links in firefox

This is one of the simple things which required more searching than I expected. I note the solution here in the hope that it is helpful to the next person searching for an answer. The problem: We’re running plain Ubuntu installations (gnome) with Kmail (for Kolab). Clicking on links in emails opens a shell window […]

Categories
Life

Statistics and the Wall Street crash

I stumbled on an article about Nassim Taleb’s book “The Black Swan” recently. Quick summary: It’s very easy to make mistakes when applying the mathematical theory of statistics to the real world. Not everything in the world can be described as independent random variables with clearly defined properties. So whenever you put real money behind […]

Categories
System Administration

Debian Lenny: / on LVM2 on dm_crypt on raid

This is just Google-fodder: If you use the lenny (beta2) installer to setup a system which uses / on LVM on dm_crypt on raid, then the first reboot fails with something like “cannot find LVM volumes”. After a few minutes you get dumped into a busybox shell. Getting the system to boot Run cryptsetup luksOpen […]