Program přednášek

Orchestration is the only way we deploy stuff nowadays. There is plenty of tools available like Puppet, Ansible, Chef or SaltStack. I'm not going to talk about what orchestration is or how it works. What I want to do is to talk about few interesting features SaltStack has to offer. So don't expect the basics, but also don't expect the best practices or something helpful in every day life. But if you are using something else, it might be interesting to get to know what SaltStack has to offer.

Current versions of GCC feature a wide and growing set of inter-procedural optimizations (those that work on more than one function at a time) that include inlining, propagation of many properties of functions and their arguments, removal of unused (parts of) parameters, pure/const detection and even unification of functions that are recognized to have exactly the same semantics. This talk will explain what the main goals of these transformations are, outline how most of them work and show how powerful they get when used as part of Link Time Optimizations (LTO) and with profile feedback.

Errors often provide a throve of information. The more errors one generates, the better insight one has into the blackbox. How can 404 errors be used to enhance digital privacy and cyber security. "Hacking with 404", is a case study looking at interperting 404 errors to better understand what is on the other side.

Low security standards of current IoT devices popularized Linux as a target platform for malware developers. This talk serves as an introduction to sandbox analysis of malware with main focus on process tracing possibilities inside Linux. The talk summarizes ptrace based tools, syscalls hooking, perf, ftrace, eBPF and SystemTap for behavior analysis.

Our infrastructure grows every day. How do we monitor it effectively?
We will talk about the transformation from the old monitoring system to the new system - Icinga2, setting up processes and models which are making our growth easier. We will also look at some pitfalls we can fall at and solutions to that.
In this presentation, you will learn about transitioning from Nagios to Icinga2 and what have we improved with this transition. I will also talk about how to achieve full automatization with tools like Puppet, Python, and Racktables.