October 25, 2020 | 12:22

Whitebox-Monitoring with Prometheus

Winter is coming! Winter time has already arrived, and soon the Corona Lockdown aswell. Sitting at home in the warmth with a cup of tea, having a complete overview of the IT is a good feeling. The catchword here is “complete”. I don’t rely on traditional blackbox monitoring solutions1 but rather on the whitebox solution called Prometheus2. Behind Prometheus there is no single company but an initiative of various ones. The who-is-who of the tech industry with RedHat, Amazon, Apple, ARM and many others3. Read more

October 19, 2020 | 08:00


This weekend I was very active in improving my own security. I have also found two neat tools for quality testing which are Hardenize1 and DNSViz2 - both added to my Micro-Blog post “Measuring website quality”. On my own mailserver I have implemented MTA-STA according to RFC 84613 incl. reporting. This standard is quite new (2018) and is particularly suitable for servers without DANE4. However, even without DANE I believe that I have the best and most complete server by standards (DKIM, SPF, DMARC, MTA-SRA, TLS-RPT, TLS1. Read more

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

September 25, 2020 | 13:10

Webinar: IT Risk Assessment and Information Security

My rant showed some effect ;-) Coming Friday, 2nd October 2020 from 7pm on, I will give a presentation covering IT risk assessment and information security. Everything will be hands-on with realistic (live) examples from the web for an audience of developers, project managers, independent consultants and anyone interested in technology. Have a look at the original announcement here. Friday, 02.10.2020, 1900 (CEST, local time) Room: https://meet.jakobs.systems/b/tom-hwb-uzi-mo0 Password: 350533 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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