Blog

About Solaris, IT and cycling.

Renewing certificates - a horrible hack

I’m hosting my own mailserver to receive mail for the domains i own. My personal mail is running somewhere else. It’s the last public server i’m operating ou...

Solaris 11: Network Condition Simulator

A long time ago i wrote about a driver for Opensolaris called hitbox or htbx. This driver enabled a Solaris system to simulate properties of a network link l...

Solaris 10/11: Account locking and passwordless SSH

One of the nice things about SSH is passwordless login. However that doesn’t mean that passwords can’t ruin your day. Let’s assume you have an account on a s...

A WLAN tunneled

From time to time it’s quite useful to appear to be an internet user for example from the US instead of Germany. Or in the UK. Of course there are services f...

Migrating from Ubiquiti USG to UCG

I gave myself a christmas present this year. I’m using a Ubiquiti Unifi Security Gateway (short USG) for quite some time now and i thought it would be a good...

2024

Vorwort - im Nachhinein … Es ist der 1.1.2025. Das neue Jahr ist da. Ich habe mehr als in den letzten beiden Jahren den Text noch nachbearbeitet, weil mir er...

Berlin

Ich frage mich bis heute an vielen Stellen, wie mein Gehirn verschaltet ist. Okay, fragen sich wahrscheinlich mehr Menschen, die mich kennen. Vermutlich mit ...