Configuration and use of NFS under Linux

NFS, a networked file system (network filesystem) that allows computers in a network to share resources across TCP/IP networks. In an NFS application, a local NFS client application can transparently read and write to files located on the remote NFS server, just as you would access a local file.

Build NFS Services under Linux

In general, the CentOS default installation, the installation package is Nfs-utils, you can start the service directly

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Practical case: Server 192.168.157.142 client 192.168.157.148

Server-Side shared directory/test client mount the directory

Editing a configuration file

Vi/etc/exports

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Permissions for NFS are described here

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Use commands when editing is complete

EXPORTFS-RV enabled

Restart NFS Service

Use the command showmount-e 192.168.157.142 to view

The client can mount with mount command mount

Mount-t NFS 192.168.157.142:/test/mnt/share

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Description Mounted successfully!

In the middle there is a problem:

[Email protected] ~]# showmount-a 192.168.157.142

Mount Clntudp_create:RPC:Port Mapper failure-rpc:unable to receive

Simple workaround: Turn off Firewall service iptables stop

Question two:

[Email protected] ~]# mount-t NFS 192.168.157.142:/test/mnt/share

Mount:192.168.157.142:/test failed, reason given by Server:permission denied

The cause may be a problem with the server-side profile exports shared host.

In addition, the client can set the boot automatically mount, the method is as follows:

Vi/etc/fstab

192.168.157.142/test/mnt/share NFS Ro (permissions) 0 0

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Configuration and use of NFS under Linux