Choose Y here if you want to allow other computers to access files residing on this system using Sun's Network File System protocol. To compile the NFS server support as a module, choose M here: the module will be called nfsd. You may choose to use a user-space NFS server instead, in which case you can choose N here. To export local file systems using NFS, you also need to install user space programs which can be found in the Linux nfs-utils package, available from http://linux-nfs.org/. More detail about the Linux NFS server implementation is available via the exports(5) man page. Below you can choose which versions of the NFS protocol are available to clients mounting the NFS server on this system. Support for NFS version 2 (RFC 1094) is always available when CONFIG_NFSD is selected. If unsure, say N.
The syscall interface to nfsd was obsoleted in 2.6.0 by a new filesystem based interface. The old interface is due for removal in 2.6.40. If you wish to remove the interface before then say N. In unsure, say Y.
This option enables support in your system's NFS server for version 3 of the NFS protocol (RFC 1813). If unsure, say Y.
Solaris NFS servers support an auxiliary NFSv3 ACL protocol that never became an official part of the NFS version 3 protocol. This protocol extension allows applications on NFS clients to manipulate POSIX Access Control Lists on files residing on NFS servers. NFS servers enforce POSIX ACLs on local files whether this protocol is available or not. This option enables support in your system's NFS server for the NFSv3 ACL protocol extension allowing NFS clients to manipulate POSIX ACLs on files exported by your system's NFS server. NFS clients which support the Solaris NFSv3 ACL protocol can then access and modify ACLs on your NFS server. To store ACLs on your NFS server, you also need to enable ACL- related CONFIG options for your local file systems of choice. If unsure, say N.
This option enables support in your system's NFS server for version 4 of the NFS protocol (RFC 3530). To export files using NFSv4, you need to install additional user space programs which can be found in the Linux nfs-utils package, available from http://linux-nfs.org/. If unsure, say N.