NFS shared services and experiments

Catalog

One 、NFS Concept

Two 、NFS Shared service experiment

One 、NFS The role of

Two 、 The experimental steps

Ⅰ：NFS Server configuration

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Ⅱ： Client configuration

Ⅲ： mount

Ⅳ： verification  

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One 、NFS Concept

NFS It's based on TCP/IP Transport network file system protocol . By using NFS agreement , The client can access the shared resources in the remote server just like accessing the local directory

For most load balanced clusters , Use NFS Protocol to share data storage is a common practice ,NFS It's also NAS A protocol that storage devices must support . But because of NFS There is no user authentication mechanism , And the data is transmitted in plain text over the network , So the security is very poor , Generally, it can only be used in LAN .

NFS The implementation of a service depends on RPC （Remote Process Call, Remote procedure call ） Mechanism , Mapping to the local process . All need to be installed nfs-utils、rpcbind Software package to provide ―NFS Shared services

Two 、NFS Shared service experiment

One 、NFS The role of

/dev/sdb1、/dev/sdb2、/dev/sdb2 The local disk is attached to .NFS Equivalent to cross network mount ,① Save local storage space, store commonly used data in a server, which can be accessed through the network ;② When the hard disk storage pressure is too high , It will affect the performance of this machine ,NFS There would be no such problem .

Two 、 The experimental steps

Ⅰ：NFS Server configuration

1、 Set up an experimental environment

install / to update   nfs-utils、rpcbind software package

2、 Create shared directory

stay NFS Create a shared directory on the server     /opt/nfs_data

Give the shared directory a permission

3、 modify NFS Configuration file for

Profile location ：/etc/exports

 

  The file configuration is as follows ：

 4、 start-up

Start... First rpcbind Restart nfs( The host name has changed , For a host )

 

 5、 Check out the NFS share directory

showmount -e

Ⅱ： Client configuration

1、 install / to update   nfs-utils、rpcbind software package

2、 Create a mount point

Ⅲ： mount

To mount temporarily

 

  Permanently mount

 

mount -a  

Ⅳ： verification  

Create a file on the client

  Check the server