Als ich 2007 diese Webseite ins Leben rief, war das Ziel einen weltweit per Browser verfügbaren persönlichen Bereich zu schaffen, um KnowHow, Tipps und Tricks aus der Linux und Hostingwelt zu notieren. Mittlerweile ist hieraus zum einen ein recht umfangreicher Blog als auch eine Art Portfolio aus dem Bereich der Systemadministration geworden.
Ich wünsche viel Spaß beim Lesen und Recherchieren.
Neues aus dem Blog
Oracle instantclient Ubuntu 20.04 / 22.04
Today I installed a Ubuntu 22.04 virtual machine with Lima on my MacBook M1 in order to be able to use the Oracle database tools sqlplus, expdp and impdp. After installing the tools as described and installing libaio I still got an error. It took me some minutes to find out that the dynamic linker ... Weiterlesen
Python Multithreading ThreadPool with arguments
In Python3 it is actually very easy to create a fix number of worker threads and fetch a result as soon as it's available. The thread target in this case is a function which takes one argument. According to the multiprocessing documentation, the developers recommend to use the concurrent.futures module because of it's compatibility. I ... Weiterlesen
Debian 11 - DNS test DoT and DoH with dig
If you maintain a DNS resolver, you need to test different protocols these days. DoT (TLS), DoH (HTTPS) and regular DNS via UDP and TCP are all subjects of a modern resolver. Unfortunately unbound and dig on Debian Bullseye both come without DoH support. Either the version is too old or the necessary compile flags ... Weiterlesen