OUGN2025

Path of suffering and hit pattern – CIS Benchmark and hardening for beginners

This is our project report on the subject of hardening project systems on a Linux basis and with the Oracle database on top. Since it has come to us completely out of the blue, even as „Oracle users“ and „Linux users“ with many years of experience, we first looked around and wondered what is to be learned in the security environment! It is the story of criminal energies, self-restrictions, risks to be taken, unknown threats, dear habits, external determination, reality, practice, performance, overhead, overview, tools and the question of who is supposed to maintain all this?

Join us on the road which should lead to greater security – but at what cost?

Performance is Rarely an Accident

Performance is a feature – that’s ancient wisdom. So it’s time to discuss the matter in detail, is it?
Why you can’t watch a road without thinking of two dimensions of power, what software design and fast food franchisers have in common, and where priority really matters.
Let’s learn the basics of profiling, about the backbites of parallel processing, from the Magic of Q, about scalability, to be the Master of the Time, and what is possible and what is not.
Let’s talk about Queueing Theory, have fun with average values, play with the user’s feeling of performance and degradation, joking with throughput and response time.
Let’s use hard and soft elbows, visual helpers, a bucket and a wall clock.
The overhead of the talk is 40 minutes, the hangover immense. 🙂