NFS

Network File System (NFS) (1984) is a distributed file system protocol that allow to share files and folders using a TCP network.

• Ports: Port 111 (TCP and UDP) and 2049 (TCP and UDP) for the NFS server.

Installation

• apt install nfs-common
• apt install nfs-kernel-server

• systemctl status nfs-server.service

Linux commands

• exportfs (apt install nfs-kernel-server: nfsdcltrack, rpc.nfsd, rpc.mountd)

Example output NFS share to everyone: HOST#exportfs /nfs <world>

• showmount
• mount -t nfs

Windows commands

• Get-WindowsFeature -Name NFS*
• Install-WindowsFeature -Name NFS-Client
• mount 192.168.0.1:/FOLDER_NAME n:
• New-PSDrive -Name Z -PSProvider FileSystem -Root "\\192.168.0.251\FOLDER_NAME"
  • Remove-PSDrive Z
• New-PSDrive -Name K -PSProvider FileSystem -Root "\\ServerName\ShareName" -Persist -Scope Global
• New-PSDrive -Name K -PSProvider FileSystem -Root "\\ServerName\ShareName" -Persist -Credential $cre -Scope Global

See also: https://davidring.ie/2018/07/06/windows-2016-mount-an-nfs-share/

Configuration file: /etc/exports

/etc/exports

Example:

/export       192.168.1.0/24(rw,fsid=0,insecure,no_subtree_check,async)
/export/users 192.168.1.0/24(rw,nohide,insecure,no_subtree_check,async)

fsid=0 signals the NFS server that this export is the root.

Warning: /etc/exports is affected by adding additional space characters, be mindful about format

NFSv4

NFSv4 no longer utilizes the MOUNT protocol.

Linux Kernel

• 5.12 Eager NFS writes

Related terms

• Round Time Trip
• NetBIOS
• systemctl status rpc-statd
• Nutanix Distributed Filesystem (NDFS)
• Filestore CSI driver

Activities

• Setup a NFS server in Ubuntu following: https://help.ubuntu.com/community/SettingUpNFSHowTo

Install server: apt-get install nfs-kernel-server

Install client (optional): apt-get install nfs-common

• Mount a remote nfs share: mount -t nfs
• List mounted NFS resources

See also

• NFS: nfs-common, nfstat, nfsiostat , sar -n NFS, Mount a remote nfs share, mount, showmount, exportfs, rpcinfo, List mounted NFS resources, RPC, AWS EFS
• sanlock shared storage lock manager
• Storage protocols: CIFS, NFS, iSCSI, FCP, FCoE, SMB, NetBIOS, SCSI
• Amazon Elastic File System (EFS) and EBS

https://www.server-world.info/en/note?os=Windows_Server_2019&p=nfs&f=4

https://community.spiceworks.com/topic/2219152-powershell-mapping-network-drive

https://linux.die.net/man/5/exports