Portrait from summer 2007


Professional | Programs | IPv6 | Recent reading | Social networking

Jürgen Nickelsen <ni@w21.org>1

IT/software/systems/Unix/networking professional. Ever curious. Lover of music, language, photography, books, good food and drink. Communicates for fun. Lives in Berlin (Germany).

For confidential communication, I have a PGP/GPG key2, which is also at keybase (proof). You can also IM me over Threema using the above e-mail address or ZZ2JK2ZM (changed 2013-11-03).

  1. For over 10 years I have been using the e-mail address <ni@jnickelsen.de>. It will still work for quite a while, but I have stopped using it. I will finally switch it off some time in the future.
  2. This website uses a TLS certificate from CAcert, which is not by default recognized by most web browsers. If your browser complains, you can download their root certificate from their site to make your browser recognise it, or just add an exception for this web site. Either way you have to be insecure to download the key, so if you really want to use it, be aware of this. And contact me for key verification.


Be conservative in what you do, be liberal in what you accept from others. [RFC 761]