Author

Ondřej Caletka

Ondřej Caletka is a technical expert in the Learning and Development team at 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 training at various events.

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Deploying IPv6-mostly access networks

By Ondřej Caletka on 21 Nov 2022

Guest Post: How to provide IPv4 connectivity for legacy devices while allowing modern devices to run IPv6-only.

How to: Managing DNS zones using Git

By Ondřej Caletka on 4 Feb 2019

Guest Post: Learn how the Git version control system can be used to store DNS zone files’ history and protect against errors.