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The (gnu services nfs) module provides the following services,
which are most commonly used in relation to mounting or exporting
directory trees as network file systems (NFS).
While it is possible to use the individual components that together make
up a Network File System service, we recommended to configure an NFS
server with the nfs-service-type.
The NFS service takes care of setting up all NFS component services, kernel configuration file systems, and installs configuration files in the locations that NFS expects.
A service type for a complete NFS server.
This data type represents the configuration of the NFS service and all of its subsystems.
It has the following parameters:
nfs-utils (default: nfs-utils)The nfs-utils package to use.
nfs-versions (default: '("4.2" "4.1" "4.0"))If a list of string values is provided, the rpc.nfsd daemon
will be limited to supporting the given versions of the NFS protocol.
exports (default: '())This is a list of directories the NFS server should export. Each entry is a list consisting of two elements: a directory name and a string containing all options. This is an example in which the directory /export is served to all NFS clients as a read-only share:
(nfs-configuration
(exports
'(("/export"
"*(ro,insecure,no_subtree_check,crossmnt,fsid=0)"))))
rpcmountd-port (default: #f)The network port that the rpc.mountd daemon should use.
rpcstatd-port (default: #f)The network port that the rpc.statd daemon should use.
rpcbind (default: rpcbind)The rpcbind package to use.
idmap-domain (default: "localdomain")The local NFSv4 domain name.
nfsd-port (default: 2049)The network port that the nfsd daemon should use.
nfsd-threads (default: 8)The number of threads used by the nfsd daemon.
nfsd-tcp? (default: #t)Whether the nfsd daemon should listen on a TCP socket.
nfsd-udp? (default: #f)Whether the nfsd daemon should listen on a UDP socket.
pipefs-directory (default: "/var/lib/nfs/rpc_pipefs")The directory where the pipefs file system is mounted.
debug (default: '()")A list of subsystems for which debugging output should be enabled. This
is a list of symbols. Any of these symbols are valid: nfsd,
nfs, rpc, idmap, statd, or mountd.
If you don’t need a complete NFS service or prefer to build it yourself you can use the individual component services that are documented below.
The RPC Bind service provides a facility to map program numbers into universal addresses. Many NFS related services use this facility. Hence it is automatically started when a dependent service starts.
A service type for the RPC portmapper daemon.
Data type representing the configuration of the RPC Bind Service. This type has the following parameters:
rpcbind (default: rpcbind)The rpcbind package to use.
warm-start? (default: #t)If this parameter is #t, then the daemon will read a
state file on startup thus reloading state information saved by a previous
instance.
The pipefs file system is used to transfer NFS related data between the kernel and user space programs.
A service type for the pipefs pseudo file system.
Data type representing the configuration of the pipefs pseudo file system service. This type has the following parameters:
mount-point (default: "/var/lib/nfs/rpc_pipefs")The directory to which the file system is to be attached.
The global security system (GSS) daemon provides strong security for RPC
based protocols.
Before exchanging RPC requests an RPC client must establish a security
context. Typically this is done using the Kerberos command kinit
or automatically at login time using PAM services (see Kerberos Services).
A service type for the Global Security System (GSS) daemon.
Data type representing the configuration of the GSS daemon service. This type has the following parameters:
nfs-utils (default: nfs-utils)The package in which the rpc.gssd command is to be found.
pipefs-directory (default: "/var/lib/nfs/rpc_pipefs")The directory where the pipefs file system is mounted.
The idmap daemon service provides mapping between user IDs and user names. Typically it is required in order to access file systems mounted via NFSv4.
A service type for the Identity Mapper (IDMAP) daemon.
Data type representing the configuration of the IDMAP daemon service. This type has the following parameters:
nfs-utils (default: nfs-utils)The package in which the rpc.idmapd command is to be found.
pipefs-directory (default: "/var/lib/nfs/rpc_pipefs")The directory where the pipefs file system is mounted.
domain (default: #f)The local NFSv4 domain name.
This must be a string or #f.
If it is #f then the daemon will use the host’s fully qualified domain name.
verbosity (default: 0)The verbosity level of the daemon.
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