.NFS File Extension
File TypeNetwork File System Temporary File
This file is saved in a binary format, which requires a specific program to read its contents.
What is an NFS file?
File created by Network File System, a protocol that allows files to be accessed over a network; contains either a temporary copy of a file that is opened by an NFS process, or a copy of a file that was deleted while still open by an NFS process; enables the client and file server processes to communicate file information.
If a file delete request is sent to a file on an NFS server while an NFS client still has the file open, NFS will create a file with the ".nfsX" extension, where "X" can be any number of characters. This allows the NFS server to maintain the file until all dependent processes on the file have been terminated.
If a client crashes while it has an NFS file open, the NFS file may remain on the server. Some system administrators set scheduled jobs to remove such files after they have not been used for a certain time period.
NOTE: NFS files rarely have the exact ".nfs" file extension since NFS appends other characters to the end of the extension.