NFS:
Enumeration
NFS export discovery, content listing, and share mounting guides
NFS Export Discovery
NFS Share Content Enumeration
NFS enumeration reveals what the server shares and who can access it. showmount lists exported directories and their allowed clients, giving an immediate view of the attack surface.
Mount exports locally to inspect file contents, permissions, and ownership. Map UIDs and GIDs found on the share back to system users. Access controls in NFS are enforced by UID/GID matching, so knowing the numeric IDs is the first step toward unauthorized access.