May 16 – 17, 2023
Vzdělávací komplex UTB - budova U18
Europe/Prague timezone

Program Commitee

Ondřej Caletka

Ondřej works in RIPE NCC as a technical expert in the Learning and Development team. His main responsibility includes developing and operating the lab environment for training courses and online learning.

Ondřej graduated from Czech Technical University in Prague and worked as network services administrator and developer for the Czech national research and education network CESNET before joining the RIPE NCC. He is also active in local IT communities around open source/free software, and acts as an IPv6 and DNSSEC ambassador, delivering talks and trainings at various events.


Ondřej Filip

Ondřej studied Computer Science at the Faculty of Mathematics and Physics at Charles University and University of Pittsburgh - Joseph M. Katz Graduate School of Business (MBA). During his studies at Charles University he started working for the company IPEX a.s. Later he became a Technical director and a member of the board there. Ondřej has been a CEO of the CZ.NIC Association since December 2004. Regarding his duties in CZ.NIC, Ondřej acts as a chairman of the NIX.CZ Association Board (Neutral Internet Exchange), an executive board member of the RIPE NCC International Association and a board member of the Euro-IX Association (European Internet Exchange Association). He was a member of the ccNSO council (Country Code Names Supporting Organisation) at ICANN (Internet Corporation for Assigned Names and Numbers); where he is now a member of the important and prestigious Security and Stability Advisory Committee (SSAC). In 2022, the ICANN organization named Ondřej Filip "the Cryptographic Officer", so he is one of 14 trusted representatives of the international Internet community who oversee the process of signing root zone records.


Adam Golecký

Adam Golecký holds the CEO position of the Association of NIX.CZ. He is responsible for leading the entire team of NIX.CZ and for the financial management of the Association; he is also in charge of communication with strategic partners and represents NIX.CZ and NIX.SK both locally and internationally. He has been with the company since 2008.


Sergey Myasoedov

Sergey is an independent consultant. His areas of interest are the new key Internet technologies, especially DNSSEC and IPv6. Sergey has been active in the Internet community since the RIPE 56 Meeting in 2008. He also serves the regional community as chair of the ENOG Programme Committee.

Before starting his own company in 2007, he worked as a NOC Engineer and Chief of the NOC Department in Russian telecommunication companies. He graduated from Saint Petersburg State Technological University in Russia.


Tomáš Hlaváček

Tomáš is a programmer at NIX.CZ. His technical background include Internet routing protocols, AS operation, low-level programming in Linux kernel and other OSS projects, data analysis and statistics. His current research focus is RPKI, Internet routing policies, measurement methodologies and high-speed networking in Linux. 


Petr Krčmář

Petr Krčmář is Linux enthusiast and loves open technologies. He works as editor-in-chief of, he is active member of and he loves working and proven things and technological innovations which makes sense.


Radek Zajíc

Radek focuses his work on technologies running the Internet, heavily promotes a global rollout of IPv6 and is interested in wireless telecommunications technologies. Currently cooperates with on the Content Delivery infrastructure and talks at various conferences and events. Radek believes that we are here to evolve the Internet in a way that even our children will be able to use it.