About this blog…

I am employed by Netnod as head of engineering, research and development and am among other things chair of the Security and Stability Advisory Committee at ICANN. You can find CV and photos of me at this page.

As I wear so many hats, I find it being necessary to somewhere express my personal view on things. This is the location where that happens. Postings on this blog, or at Facebook, Twitter etc, falls under this policy.

The views expressed on this post are mine and do not necessarily reflect the views of Netnod or any other of the organisations I have connections to.

Non-ascii in filenames of images in MediaWiki

If one have added images to MediaWiki and used non-ascii in the filenames (for example the Swedish characters åäö) there might be problem if you move the wiki to a file system with different encoding mechanisms. Or upgrade or change something else in your environment.

This is possible to solve, but you have to rename […]

New version of IDNA tool, and tests with upcoming Unicode 6.2.0

Today I updated the version of the tool I use for generating tables for Unicode Characters according to the algorithm described in RFC 5892 and RFC 6452.

The only change that exists from 6.1.0 to 6.2.0 is the addition of one codepoint, U+20BA that is allocated to TURKISH LIRA SIGN. The codepoint because of this […]

Python 3.2.1 on MacOSX 10.7.1

Getting a proper version of python 3.x installed is not as easy as it has been earlier. First of all, you need the Developer package installed (again). This you do by installing XCode 4.x from the MacApp store. I thought I had done so, but could still not find gcc etc in my path. Some […]

IDNA2008 RFCs are ready

The RFCs with numbers 5890-5894 where just released. The one that I worked most with was RFC 5892, and the announcement was like this:

From: rfc-editor@rfc-editor.org Date: Wed, 4 Aug 2010 08:37:42 -0700 (PDT) To: ietf-announce@ietf.org, rfc-dist@rfc-editor.org Cc: idna-update@alvestrand.no, rfc-editor@rfc-editor.org Subject: RFC 5892 on The Unicode Code Points and Internationalized Domain Names for Applications (IDNA) […]

Review of Unicode TR#46

I have reviewed Draft Unicode Technical Standard #46 – UNICODE IDNA COMPATIBILITY PROCESSING as could be found at https://www.unicode.org/reports/tr46/ on March 15, 2010 (below called TR#46).

The review is based on my personal experience from many years of activity in the IETF, and of course my work with both IDNA2003 (RFC3490 etc) and IDNA2008 (working […]