Author

Tobias Fiebig

Dr.-Ing. Tobias Fiebig is an assistant professor in the Information and Communication Technology section at the faculty of Technology, Policy and Management of TU Delft

Be careful where you point to: the dangers of stale DNS records

By Tobias Fiebig on 9 Jan 2019

Guest Post: Tobias Fiebig illustrates how stale DNS records can leave cloud-based hosts vulnerable to exploitation.

Revisiting reverse DNS use

By Tobias Fiebig on 25 Oct 2018

Guest Post: What percentage of IP networks are delegating corresponding reverse DNS zones to one of their authoritative name servers?

How to observe allocated IPv6 addresses

By Tobias Fiebig on 28 Apr 2017

Guest Post: By adapting a previous measuring method, we are able to observe how operators allocate IPv6 addresses more easily.