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This article introduces the relevant knowledge of "how to use NFS in Linux". Many people will encounter such a dilemma in the operation of actual cases, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

NFS is a service that we often use to share document directories between linux systems. In fact, the configuration of nfs is very simple, and I also use simple square words to record and explain the main points of the configuration of NFS.

1) Server configuration file: / etc/exports

File format: Directory hostname (options)

Directory is the directory to be shared

The domain name / IP address / IP address field of the hostname client; it can also be empty, which represents any host

Options is optional, if not specified, the default option is used. Such as ro,rw,sync,async, etc.

Such as:

/ home 192.168.1.* (rw,async,no_root_squash)

Rw; is readable and writable

Async; synchronization. Only when the server receives a response from the client, does it take the next step to ensure a more reliable connection.

No_root_squash; does not compress the permissions of root users. To be more secure, please use roo_squash.

On the server side, you can use the exportfs command to output exports's shared directory.

2) make sure portmap and NFS are started

# / etc/rc.d/init.d/portmap start (or: # / service portmap start) # / etc/rc.d/init.d/nfs start (or: # / serverice nfs start)

Note: netstat-untlp is available to check whether the portmap and nfs services are started. Port 2049 is the NFS server, and port 111corresponds to the portmap service. You can find the corresponding ports on both TCP and UDP.

3) NFS client configuration (mount or fstab file)

# mount-t nfs hostname (orIP): / directory / mountpoint

-t nfs can be omitted

/ directory is an absolute path

Or add the mount record of the NFS file system to the / etc/fstab file

NFSserverIP:/directory / mountpoint nfs defaults 0 0

You can use mount to check the mount point.

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