Since October 2019 I have been with the University of Waikato. In the past, I worked at INF/UFRGS Federal University (Associate Professor, 2010–2019), UNISINOS University (Adjunct Professor, 1993–2008), PUC-RS University (2008–2009), as well as an Invited Adjunct Professor at UNAL, Colombia.
My research has addressed a range of challenges as technology evolved, covering the non-functional properties of performance, security and resilience of networked systems and their underlying protocols. My key research interest has been on Internet measurements and network security.
I have regularly contributed to the network research community by serving in multiple committees. I was the general co-chair of ACM SIGCOMM 2016 and have been serving as Program Committee co-chair of ACM CoNEXT 2022. I have contributed as a member of several Technical Program Committees of conferences: ACM CoNEXT, IEEE INFOCOM, IEEE ICNP, ACM HotNets, ACM IMC, IFIP Networking, etc. I was a member of the ACM SIGCOMM Executive Committee 2017-2021, and have been a co-chair of the ACM SIGCOMM CARES committee. I also contributed as a member of the steering committees of ACM CoNEXT and the PAM conference, and chairing the Advisory Board of the ACM PACM-NET journal.
I am fortunate to have supervised many bright students (and hope some new ones look for me in the future). Contact me if you are interested, but to be sure I am a good fit for you, please first read my recent papers and be ready to talk about the ones that interested you: it’s a proof-of-work without which you may not get a response :) If you are unaware of my work, I may not respond to your email.
PhD in Computer Science, 1998
Newcastle University, UK
MSc in Computer Science, 1993
Federal University of Rio Grande do Sul (UFRGS), Brazil
BSc in Computer Science, 1989
Federal University of Rio Grande do Sul (UFRGS), Brazil
Google Scholar profile.
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These connections are part of a computer science research project at the University of Waikato, School of Computing & Mathematical Sciences. This research involves making a small number of harmless connection attempts to every publicly accessible computer on the Internet. Similarly to so many other scientific studies, this allows us to methodologically measure the Internet and analyse trends in technology deployment and security.
As part of this specific investigation, every public IP address in the Aotearoa’s cyberspace receives a handful of packets on IANA standard and non-standard ports. These consist of conventional connection attempts followed by RFC-compliant protocol handshakes with responsive hosts. We use only tools that have been used in dozens of other scientific studies worldwide (e.g. ZMap, Masscan, ZGrab2 and LZR). We never attempt to exploit security problems, guess passwords, or change device configurations. Furthermore, we only receive data that is publicly visible to anyone who connects to a particular address and port.
This project was ethically approved by the University and follows the widely accepted best practices for Internet scanning measurements.
The data collected through these connections consists only of information that is already publicly visible on the Internet. It helps us, computer scientists, study the deployment and configuration of network protocols and security technologies. We may be able to detect vulnerable systems and responsibly report the problems to the network operators.
This research helps the scientific community accurately study the Internet.
The data is sometimes used to detect security problems and to inform operators of vulnerable systems so that they can be fixed. If you opt out of the research, you might not receive these important security notifications.
If you wish to opt out, please use research-abuse@wand.net.nz to let us know. We will promptly exclude your network from the set of measurements.
Dr. Marinho Barcellos
WAND Research Group
University of Waikato
In Brazil, there is typically one graduation ceremony per semester, with students graduating in Computer Science or Computer Engineering programs. Each of these undergraduate programs select, by vote, two professors they considered the best/most influential in their 4-5 years of study. This is a very prestigious distinction, specially when the faculty is in the order of 60-70 professors and lecturers. I have been fortunate enough to be awarded several times in my career, spanning different higher-education institutions.