The configuration method of NFS server under CentOS Linux

NFS Servo END

Portmap 111;nfs 2049

Servo-Side Installation

Yum-y Install Nfs-kernel-server

Enable

Service Nfs-kernel-server Restart Set file

Vi/etc/exports

<export/share point> <client list>
/usr node* (rw,sync,no_root_squash)/home node* (Rw,sync,no_root_squash)

Common NFS Options:

ro, rw: Specify whether this share can be written. ' Ro ' means read-only, the client cannot write; RW indicates that the client can write.

Sync, Async: Sync (Sync) and asynchronous (async) mode, choose one to use. In synchronous mode, programs that access NFS have to wait until the actual read and write action is completed before they return to execution, which is not required by the asynchronous mode, and the program can continue to perform after sending access requirements, speeding up the system's operational efficiency. Basically, although the asynchronous mode is high efficiency, but will increase the system instability factor, when the system when the machine (whether the servo or the client), it is easy to cause the data on the disk error 111cn.net, so the Debian preset is synchronous mode.

It is not recommended that you use asynchronous mode unless you have special needs. If you do not specify the sync or ASYNC,NFS server to print a warning message at startup, we should specify the sync option on all export point.

Root_squash, No_root_squash:nfs in the preset situation will be the Super user account root Uid/gid (0/0) corresponding to nobody, this is Root_squash. We can use No_root_squash to turn off this function.

View NFS for any one host

SHOWMOUNT-E hostname

Mount NFS

Mount-t NFS Hostname:/export/path/mount/point

Client Side
1.NFS server-side first set, new host name to link

Vi/etc/exports

/home newserver.domain.kh.edu.tw (Rw,sync,no_wdelay,nohide,no_root_squash)

Confirm that there is no open Read permission www.111cn.net

Vi/etc/hosts.allow

all:163.32.x.x

When the setting is complete, mount the load again

Exportfs-arv

2.Client-end settings, change home name (home2) in the original machine, and create a new home to link the NFS server home

Umout Home

MV Home Home2

mkdir Home

3. Start Portmap Service

Service Portmap Start

Service Nfslock Start

4. Scan NFS server for shared directory, link to client

SHOWMOUNT-E NFS 163.32.x.x

Or

Mount-t NFS File.domain.kh.edu.tw:/home/home

5. Remote host directly mount to the relevant directory, each boot will be automatically mounted

Vi/etc/fstab

File.domain.kh.edu.tw:/home/home NFS Rw,soft,intr 0 0

6. Restart, and then use the account login test to see it!

Client End 2
Basic Installation

Yum-y Install Nfs-utils

Vi/etc/idmapd.conf # line 5:uncomment and change to your domain name

Domain = localhost.domain.kh.edu.tw

/etc/rc.d/init.d/rpcbind start

/ETC/RC.D/INIT.D/RPCIDMAPD start

/etc/rc.d/init.d/nfslock start

/etc/rc.d/init.d/netfs start

Preset boot up use

Chkconfig Rpcbind on

Chkconfig RPCIDMAPD on

Chkconfig Nfslock on

Chkconfig Netfs on

Mount-t NFS File.domain.kh.edu.tw:/home/home