Common services for Linux Enterprises---NFS

NFS is a network File system protocol based on TCP/IP transmission, originally developed by Sun.

With the NFS protocol, clients can access shared resources on a remote server as if they were accessing a local directory.

NFS has excellent support for networked storage devices such as NAS. is also preferred for LVS shared storage.

NFS-related services

Package: Nfs-utils,rpcbind

Configuration file:/etc/exports

Related commands:

Exportfs

Showmount

Rpcinfo

Mount

Basic configuration file;

/etc/exports

/Master (rw) trusty (Rw,no_root_squash)

/projectsproj*.local.domain (rw)

/usr *.local.domain (RO) @trusted (rw)

/home/joepc001 (rw,all_squash,anonuid=150,anongid=100)

/buildbuildhost[0-9].local.domain (rw)

Pre-deployment preparation

Configure the system image to local Yum source, configure Yum file

Environment Introduction:

To clone a virtual machine using the parent disk, the IP is set to: 192.168.100.250 and name the virtual machine as the storage server, using 192.168.100.100 as the client.

1. Install the Nfs-utils, Rcpbind package

[Email protected] ~]# yum-y install nfs-utils rpcbind

[[email protected] ~]# for I in Rpcbind nfs;do chkconfig $i on; Done # #设置为开机启动

2. Setting up a shared directory

[Email protected] ~]# Mkdir/opt/wwwroot

[Email protected] ~]# mkdir-p/var/ftp/pub

[Email protected] ~]# chmod 777/opt/wwwroot # #设置权限

Vi/etc/exports

/opt/wwwroot192.168.100.0/24 (Rw,sync,no_root_squash)

/var/ftp/pub192.168.0.10 (RO) 192.168.0.200 (rw)

3. Start the NFS service program

[[email protected] ~]#/etc/init.d/rpcbind start

[[email protected] ~]#/etc/init.d/nfs start

[Email protected] ~]# NETSTAT-UTPNL |grep rpcbind

[Email protected] ~]# SHOWMOUNT-E # #查看本机共享的目录

4. Client Settings

[Email protected] ~]# yum-y install nfs-utils rpcbind

Chkconfig Rpcbind on

[Email protected] ~]# showmount-e 192.168.100.250

[[email protected] ~]# echo 3 >/proc/sys/vm/drop_caches # #当nfs因为缓存没有及时而导致错, you can use this command

5. Client Mount using NFS Share

[Email protected] ~]# mkdir-p/var/www/html

[email protected] ~]# Mount 192.168.100.250:/opt/wwwroot/var/www/html/

[[email protected] ~]# Mount |grep NFS

[Email protected] ~]# Vi/etc/fstab

192.168.100.250:/opt/wwwroot/var/www/html NFS Defaults,_netdev 0 0

: Wq

[Email protected] ~]# mount-a

[[email protected] ~]# Mount |grep NFS

Verify:

[Email protected] ~]# cd/var/www/html/

[email protected] html]# Touch a.file

[email protected] html]# LL

Switch to 100.250 on authentication:

[Email protected] ~]# ls/opt/wwwroot/

A.file

This article is from the "Lp-linux" blog, make sure to keep this source http://linuxlp.blog.51cto.com/11463376/1773633

Common services for Linux Enterprises---NFS