(NFS) on RedHat

0. Is NFS running on your system?
Before the configuration of NFS, you can check whether your linux system has NFS installed or not.
[root@water root]# chkconfig --list | grep nfs

If you see the following information, then continue on section 1.


nfs 0:off 1:off 2:off 3:on 4:on 5:on 6:off
nfslock 0:off 1:off 2:off 3:on 4:on 5:on 6:off

If you don't see anything, you can start NFS without reboot system by entering the command:

[root@water root]# /etc/rc.d/init.d/nfs start

1. NFS Server Configuration
1.1 The first step to setup the server is to modify the /etc/exports file on the server machine. The file specifies which partition on the server will be exported to client machines with certain permissions.

Following is an example of a NFS /etc/exprots file:

#
# /ect/exports for nfsfishes.mydomain.edu
#
/export/home walleye.mydomain.edu(rw) \
crappie.mydomain.edu(rw)
/export/data walleye.mydomain.edu(rw) \
crappie.mydomain.edu(rw)

The partitions /export/home and /export/data on the server named as water are shared by the clients named as walleye and crappie with read and write permissions.
1.2 After modifying the /etc/exports file, you have to use the exportfs command to tell the NFS server processes to re-read the configuration information.


[root@water root]# exportfs -r

OK, the NFS server configuration is done.

2. NFS Client Configuration
NFS clients are easy to configure under Linux. You can use mount command to under the command line as following:
[root@walleye root]# mount water:/export/home /nfs/home

You can also add the mount options into /etc/fstab file.

water:/export/home /nfs/home nfs bg 0 0

That's it.
3. Help
man chkconfig
man exportfs
man mount