NFS (NETWORK FILE SYSTEM)
NFS (Network File System) is used to sharing
the files and folders between linux to unix and unix to linux machines,NFS
was developed by Sun Mycro Systems in the year 1984.
NFS Configuration on Linux RHEL/CentOS 6
Features:
1. Every one can access same data.
2. Reduce Storage Cost and Easy to use.
3. Centralized Management of Files.
4. Secured with Firewalls and Kerberos.
NFS Configuration :
1. Every one can access same data.
2. Reduce Storage Cost and Easy to use.
3. Centralized Management of Files.
4. Secured with Firewalls and Kerberos.
NFS Configuration :
- NFS Port Number : 2049
- Service Name : nfs-server
- Packages : nfs-utils & nfs-utils-lib
- /etc/exports : It is main Configuration file of NFS, define all exported files and folders in this path.
- /etc/sysconfig/nfs : It is also Configuration file of NFS to controle on which port rpc and other services are listening.
To setup NFS Server,
we have at least two Linux Machines.In this article we will be using two
machines, one is NFS Server and another one is NFS Client
NFS Server
: 192.168.0.99
NFS
Client : 192.168.0.20
Server Side Configuration(192.168.0.99)
Configure Server machine (192.168.0.99) using below steps
Server Side Configuration(192.168.0.99)
Configure Server machine (192.168.0.99) using below steps
Step 1: Install NFS Packages & start
services
Install NFS Packages using yum command
[root@bsrtech ~]# yum install nfs-utils nfs-utils-lib -y
Install NFS Packages using yum command
[root@bsrtech ~]# yum install nfs-utils nfs-utils-lib -y
Enable nfs service:
[root@bsrtech ~]# systemctl enable rpcbind
[root@bsrtech ~]# systemctl enable rpcbind
[root@bsrtech ~]# systemctl enable nfs-server
[root@bsrtech ~]# systemctl enable nfs-lock
[root@bsrtech ~]# systemctl enable nfs-idmap
Start nfs service:
[root@bsrtech ~]# systemctl start rpcbind
[root@bsrtech ~]# systemctl start nfs-server
[root@bsrtech ~]# systemctl start nfs-lock
[root@bsrtech ~]# systemctl start nfs-idmap
Step 2 : Configure Shared Folders
Create Shared Directory name is “project1” , and give permissions to that directory
Create Shared Directory name is “project1” , and give permissions to that directory
[root@bsrtech ~]# mkdir /project1
[root@bsrtech ~]# chmod 777 /project1
Open NFS configuration file
and configure shared options
[root@bsrtech ~]# vim /etc/exports
syntax : <share directory> <clients range> <permissions>
/project1 192.168.0.20(rw,sync,no_root_squash,no_all_squash)
syntax : <share directory> <clients range> <permissions>
/project1 192.168.0.20(rw,sync,no_root_squash,no_all_squash)
Where
1. /project1 – shared Directory
2. 192.168.0.20 – IP Address of client
3. rw – Writable permission to shared folder
Note: ro - With the help of this option we can provide read only access to the shared files i.e client
will only be able to read.
4.sync – Synchronize shared directory
5.no_root_squash – Enable root privilege
6.no_all_squash - Enable user’s authority
Change permissons of /project1 folder for read only options
[root@bsrtech ~]# chmod 750 /project1
[root@bsrtech ~]# systemctl restart nfs-server
Create some files in shared directory
[root@bsrtech ~]# cd /project1
[root@bsrtech project1]# touch f1 f2 f3 f4
Client Side
Configuration (192.168.0.20)
Configure Client machine (192.168.0.20) using below steps
Configure Client machine (192.168.0.20) using below steps
Step 1: Install NFS Packages & start NFS
service
Install NFS Packages using yum command
Install NFS Packages using yum command
[root@bsrtech ~]# yum install
nfs-utils nfs-utils-lib -y
Enable nfs service:
[root@bsrtech ~]# systemctl enable rpcbind
[root@bsrtech ~]# systemctl enable rpcbind
[root@bsrtech ~]# systemctl enable nfs-server
[root@bsrtech ~]# systemctl enable nfs-lock
[root@bsrtech ~]# systemctl enable nfs-idmap
Start nfs service:
[root@bsrtech ~]# systemctl start rpcbind
[root@bsrtech ~]# systemctl start nfs-server
[root@bsrtech ~]# systemctl start nfs-lock
[root@bsrtech ~]# systemctl start nfs-idmap
Step2 : To findout which files or directories are exported from the server
[root@nfsclient ~]# showmount -e
192.168.0.99
where 192.168.0.99 is server ip address
where 192.168.0.99 is server ip address
Step3 : Mount
shared NFS Directory
Mount Sahred
NFS directory using mount command, first create folder for mount point
[root@nfsclient ~]# mkdir /opt/myproject
[root@nfsclient ~]# mount -t nfs 192.168.0.99:/project1 /opt/myproject
Verify above mount point using mount command
[root@nfsclient ~]# mkdir /opt/myproject
[root@nfsclient ~]# mount -t nfs 192.168.0.99:/project1 /opt/myproject
Verify above mount point using mount command
[root@nfsclient ~]#
mount
The above mount command mounted the nfs shared directory on to nfs client on temporarily, to mount permanently write in /etc/fstab see below
[root@nfsclient ~]# vim /etc/fstab
192.168.0.99:/project1 /opt/myproject nfs defaults 0 0
The above mount command mounted the nfs shared directory on to nfs client on temporarily, to mount permanently write in /etc/fstab see below
[root@nfsclient ~]# vim /etc/fstab
192.168.0.99:/project1 /opt/myproject nfs defaults 0 0
step 4 : Check the shared files & folders
Move to shared mounted directory
[root@nfsclient ~]# cd /opt/myproject
[root@nfsclient myproject]# ls
f1 f2 f3 f4
(these are shared files from nfs server machine)
Move to shared mounted directory
[root@nfsclient ~]# cd /opt/myproject
[root@nfsclient myproject]# ls
f1 f2 f3 f4
(these are shared files from nfs server machine)
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