What is the purpose of exportfs in Linux?

The “exportfs” command in Linux is used to export a specified directory or file system on NFS, allowing other computers to access these files over the network.

Specifically speaking, the functions of Exportfs include:

1. Shared file system: Using the exportfs command, you can share a file system or directory with other computers. This allows other computers to mount the shared file system using the NFS protocol, enabling shared access to files.
2. Access control: The exportfs command can be used to set the access permissions of a file system, including both read-write and read-only permissions. By configuring exportfs, you can control which computers are allowed to access the shared file system and the level of access permissions granted.
3. To set up NFS services, the exportfs command, which is part of NFS services, can be used to add specific directories or file systems to the export list of NFS services, enabling the sharing of those resources.

In conclusion, the purpose of the exportfs command in Linux is to enable file system sharing and access control, allowing other computers to access shared files over the network via the NFS protocol.