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Explore the latest enhancements to Linux SMB3.1.1 client technology in this comprehensive conference talk from SNIA SDC 2025. Discover how recent improvements enable more secure, efficient, and compatible access to remote storage across diverse SMB3 file servers including Samba, Azure, ksmbd, Windows, NetApp, and macOS. Learn about significant performance optimizations such as smarter directory lease usage, enhanced metadata caching, and multiple netfs improvements for better data caching. Understand new security features including advanced authentication mechanisms and improved password rotation support, plus enhanced POSIX compatibility through continued SMB3.1.1 POSIX Extensions testing and development. Examine exciting developments in SMB over RDMA (smbdirect) that make high-performance paths more accessible for clients, servers, and userspace applications like Samba. Gain insights into the rapidly evolving in-kernel SMB server (ksmbd) and its growing functionality for embedded, testing, and lightweight server scenarios. Discover improvements to special file type support and new Linux system call compatibility. Acquire practical knowledge for leveraging these enhancements in real workloads while getting a preview of future SMB3.1.1 developments on Linux, presented by Steven French from Microsoft.
