# NFS4 R&D for EOS

- Institution: CERN
- Speaker: Andreas Joachim Peters
- Year: 2026
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3021152)
- Licence: [CERN](https://copyright.web.cern)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

CERN-NFS v4.0 is a prototype NFS server implemented in modern C++ that currently runs as a standalone service on a local filesystem backend. The server is built around a handle-first VFS abstraction, enabling filesystem backends to be cleanly plugged in without impacting core NFS protocol logic. While the current implementation targets POSIX and in-memory filesystems, the architecture is designed to integrate EOS as a backend. To fully support the EOS access model, the protocol must be extended from NFSv4.0 to NFSv4.1, enabling file layouts with flex files to map MGM-to-FST redirection and avoid routing data traffic through gateway nodes. In addition, the design anticipates support for NFSv4 security mechanisms such as Kerberos and certificate-based authentication, both natively supported by Linux kernel clients, as a further step toward full NFSv4 integration with EOS.

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## Lectures

1. [NFS4 R&D for EOS](https://invisiblenetwork.ai/learn/cern/3021152/b0273ac69922), 31 min (CERN's player)