For the ninth consecutive year, NETYS (The International Conference on Networked Systems) aims to bring together researchers and engineers from both the theory and practice of distributed and networked systems. The scope of the conference covers all aspects related to the design and the development of these systems, including, but not restricted to cloud systems, formal verification, concurrent and distributed algorithms, data management, data science, parallel/concurrent/distributed programming, machine learning, multi-core architectures, networks, and security. NETYS will provide a forum to report on best practices and novel algorithms, results and techniques on networked systems. Original research contributions and experience papers on the principles, design, implementation, modeling, analysis, verification, and application of networked systems are solicited. NETYS is coupled with the METIS Spring School which aims at introducing young researchers to the domain of distributed and networked systems through tutorials on basics, as well as lectures on new research topics and current trends in this domain. Topics of interest include (but are not limited to): * Cloud systems and data centers * Concurrent and distributed algorithms * Cyber-physical systems * Database management system engines * Distributed databases * Data cleaning, data integration, entity resolution * Distributed ledgers and blockchain technologies * Event-based systems * Formal verification * Internet of Things * Mobile, wireless, ad-hoc and sensor networks * Machine learning * Multi-core architectures and multithreaded applications * Overlay and peer-to-peer infrastructures * Security and privacy * Self-stabilizing, self-organizing, and autonomic systems * Social networks * Spatio-temporal data management * Static and dynamic analysis and testing General Chair * Mohammed Erradi, ENSIAS, Morocco General co-Chairs * Ahmed Bouajjani, Université de Paris, France * Rachid Guerraoui, EPFL, Switzerland Program co-Chairs * Karima Echihabi, Mohammed VI Polytechnic University, Morocco * Roland Meyers, TU Braunschweig, Germany Program Committee * Parosh Aziz Abdullah, Uppsala University, Sweden * Mohamed Faouzi Atig, Uppsala University, Sweden * Slimane Bah, EMI, Mohammed V University, Morocco * Salima Benbernou, Université de Paris, France * Yahya Benkaouz, FS, Mohammed V University, Morocco * Ismail Berrada, Mohammed VI Polytechnic University, Morocco * Erik-Oliver Blass, Airbus Group Innovations, Germany * Ahmed Bouajjani, Université de Paris, France * Emanuelle D'Osualdo, Max Planck Institute for Software Systems, Germany * Carole Delporte-Gallet, Université de Paris, France * Amr El Abbadi, University of California Santa Barbara, USA * Bernd Freisleben, TU Darmstadt, Germany * Pierre Ganty, IMDEA Software Institute, Belgium * Matthew Hague, Royal Holloway University of London, UK * Maurice Herlihy, Brown University, USA * Mohamed Jmaiel, University of Sfax, Tunisia * Ahmed Khaled, North East Illinois University, USA * Mohammed-Amine Koulali, ENSAO, Mohammed I University, Morocco * Michele Linardi, Université de Paris, France * Aziz Mohaisen, University of Central Florida, USA * K.Narayan Kumar, Chennai Mathematical Institute, India * Guevara Noubir, Northeastern University, USA * Ismail Oukid, Snowflake Computing, Germany * Mourad Ouzzani, Qatar Computing Research Institute, HBKU, Qatar * Andreas Podelski, University of Freiburg, Germany * Sayan Ranu, IIT Delhi, India * Michel Raynal, IRISA, Université de Rennes, France * Francois Taiani, Université de Rennes, CNRS, Inria, France * Klaus V. Gleissenthall, University of California San Diego, USA * Josef Widder, Informal Systems, Austria * Kostas Zoumpatianos, Snowflake Computing, Germany Organizing Committee * Khadija Bakkouch, IRFC, Morocco * Yahya Benkaouz, Mohammed V University, Morocco * Abdellah Boulouz, FS, Ibn Zohr University, Morocco * Rachid El Guerdaoui, Mohammed VI Polytechnic University, Morocco * Mustafa Hedabou, Mohammed VI Polytechnic University, Morocco * Zahi Jarir, FS, Cadi Ayyad University, Morocco * Mohammed Ouzzif, EST, Hassan II University, Morocco Important Dates * Abstract submission deadline: March 5th, 2021 * Paper submission deadline: March 12th, 2021 * Accept/Reject notification: April 26th, 2021 * Camera ready copy due: May 3rd, 2021 * Pre-recorded talk due: May 10th, 2021 * Virtual conference with pre-recorded talks: May 19th-21st, 2021 Paper Submissions and Publication Submissions must be original papers that contain sufficient detail to assess the merits and relevance of the contribution. NETYS welcomes papers on theory, case studies and comparisons with existing experimental research tools, as well as combinations of new theory with experimental evaluation. NETYS is soliciting two forms of submission: full and short papers. Full papers are allowed a maximum of 15 pages in Springer’s LNCS format, excluding bibliographic references, and will be allowed at least 15 minutes for presentation at the conference, whereas short papers are allowed a maximum of 5 pages (in the same format) and will be allowed at least 5 minutes for presentation at the conference. A full paper submission might be accepted as such, as a short paper or a poster. A short paper may be accepted as such or as a poster. The presentations of full and short accepted papers will take the form of a pre-recorded talk. Posters will be presented at the conference to reflect work in progress and will not lead to a publication in the proceedings. Authors are given the option to accept or not the type in which their paper is selected for acceptance. All submissions must be written in English, follow the LNCS template, and adhere to the page limits. Papers exceeding these limits may be rejected without review. A clearly marked appendix can be included for supplementary materials but the appendix will be read at the discretion of the reviewers; therefore, the main body of the paper should contain sufficient details to assess its contributions. Springer’s Lecture Notes in Computer Science series will publish the proceedings of the conference (www.springer.com/lncs). The Computing Journal will consider extended versions of selected NETYS papers in a special issue (www.springer.com/computer/journal/607). Awards will be given to the best paper and the best student paper. A paper is eligible for the best student paper award if at least one of its authors is a full-time student at the time of submission. This should be indicated in the submission.