Microblog

October 20, 2020 | 09:09

A treasure of powerful quotes

October 19, 2020 | 08:00

RFC 8461 MTA-STA

October 18, 2020 | 12:20

Conditional Logging with Apache

Blog

October 16, 2020 | 18:50

Working in your Homeoffice - Part III

The third and last part of my little blog series is all about planning and implementation. Inevitably, we come into contact with project management and other underlying factors. I keep my promise from part one and finally show a blueprint for risk assessment. I hope you enjoy the read! As always, the following disclaimer applies: Everything without any claim to completeness and universal validitiy. Your milage may vary! Don’t ask your IT Departement Where to go when it all comes down to workingplaces at home? Read more

October 5, 2020 | 20:00

Hacking - where are the limits?

In the previous webinar on IT risk assessment and information security, participants questioned me during the 15-minute live hacking session: Is this not illegal? We took a closer peek at the servers of an ambulant care unit and two other businesses. I found them by chance from a total of 28 million hosts1 across Germany using specific search terms. The search lasted just a few seconds and after that we browsed through the numerous directories with patient data and medical prescriptions. Read more

September 10, 2020 | 11:00

Script for Testing-Farm

Yesterday evening somebody desperately fought in despair with Packer, the younger sister of Vagrant. The goal was to create a testing farm of n machines for Virtualbox and make them accessible via SSH for further automated software testing/rollout. For me, this is much easier by using a simple bashscript. This morning I’ve made one even before the very first cup of coffee. #!/bin/bash # Pfad zur Master .ova Datei MASTER_OVA="$HOME/projects/testingfarm/DebianBuster.ova" # Anzahl der gewünschten VMs AMOUNT=2 # Name der VMs (Index und Datum werden noch angefügt = NAME-n-YYYYMMDD) PREF_VMNAME="debian" # Anzahl der CPUs PREF_CPU=1 # Zugewiesener Speicher PREF_MEMORY=1024 # Datums-Suffix THE_DATE=$(date +%Y%m%d) # Logdatei zum prüfen THE_LOG="$HOME/projects/testingfarm/$THE_DATE-$PREF_VMNAME. Read more

September 5, 2020 | 12:50

Privacy Shield Humour with Discord

Lately I received the following invitation for an online meeting in a network of consultants: The EU-US Privacy Shield has been overturned by the ECJ. What does this mean for companies and service providers? Which services may still be used and which data may be transferred? Exactly my topic and I continued further reading. The link at the end of the mail led to a meeting room on the platform discord. Read more

August 31, 2020 | 09:30

Working in your Homeoffice - Part II

Terminal Server - A look back The second part of the home office series is about terminalservers. The concept is quite old and we can’t avoid a short excursion into the past: It leads us back to the late 40s and 50s of the last century right to the beginnings of computer history. Computing time on such huge Von-Neumann-Computers1 was limited, very expensive and of course sometimes secret. Without going too much into details, I recommend the book by Kai Schlieter “Die Herrschaftsformel”2, which shows the developmental trajectories of computer science, defence technology, cybernetics and public relations. Read more

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