How to Configure NFS Server

NFS (NETWORK FILE SYSTEM)-

Network File System, is a server-client protocol used for sharing files between linux/unix to unix/linux systems. NFS enables you to mount a remote share locally. You can then directly access any of the files on that remote share. Network File System developed by Sun Microsystems.

Port NO -     2049  (for nfs) - 111 port map
Package-     nfs-utils
Daemon-     rpc.nfsd   , rpc.mounted,     rpc.lockd,  rpc.statd,  rpc.rquotad

Note- first  set the ip add. 

# vim /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
BOOTPROT=static
HWADDR=00:30:48:56:A6:2E
IPADDR=192.168.1.1
NETMASK=255.255.255.0
ONBOOT=yes

# /etc/init.d/NetworkManager restart

# ifconfig eth0

create the dir for sharing .

# mkdir /ashu-1

# vim /etc/exports

/ashu-1        192.168.1.0/24(rw,sync,no_root_squash,no_all_squash)

:wq

Where,

/ashu-1                    – shared directory
192.168.1.0/24        – IP address range of clients
rw                            – Writable permission to shared folder
sync                         – Synchronize shared directory
no_root_squash       – Enable root privilege
no_all_squash          – Enable user’s authority

# /etc/init.d/nfs restart                           (Restart service)

# showmount -e 192.168.1.1                  ( it will show the share dir)

# showmount -e 192.168.1.1                   ( on client system to check share dir on server)

# getsebool -a | grep nfs

# setsebool  -P nfs_export_all_rw  1        ( you have to run commond   if selinux is enable)


ADD PORT IN NFS-

#  vim /etc/sysconfig/nfs

MOUNTED-PORT= "4002"
STAID-PORT= "4003"
LOCKD-TCPPORT= "4004"
LOCKD-UDPPORT = "4004"
ROUOTAD-PORT = "4005"
STID-OUTGOING-PORT= "4006"
:wq

#  /etc/init.d/portmap restart;chkconfig portmap on
# /etc/init.d/nfs   restart;chkconfig nfs on
# /etc/init.d/nfslock restart;chkconfig nfslock on

# netstat -tulnp | grep 4004    ( we can check all port)

NOW WE HAVE TO ADD ALL PORT IN FIREWALL-

Probably it will show a connection timed out error which means that the firewall is blocking NFS server. To allow NFS server to access from outbound, goto NFS server system and add the as shown below in the ‘etc/sysconfig/iptables’ file.

port:     4002/4003/4004/4005/4006/111/2049

# vim /etc/sysconfig/iptables

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#Firewall configuration written by system-config-firewall
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 631 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 631 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 631 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 4002 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 4002 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 4003 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 4003 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 4004 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 4004 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 4005 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 4005 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 4006 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 4006 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 111 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 111 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 2049 -j ACCEPT
-A INPUT -m state --state NEW -m udp -p udp --dport 2049 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMT
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NOTE-  we have to add all port udp and tcp.

# /etc/init.d/iptables restart
# /etc/init.d/iptables save

# /etc/init.d/portmap restart;chkconfig nfs on
# /etc/init.d/nfs restart;chkconfig nfs on
# /etc/init.d/nfslock restart;chkconfig nfslock on


MOUNT POINT-

# mount 192.168.0.254:/ashu-1      /mnt                             (temp mount)


# vim  etc/fstab                                                         (pemanently mount)                  



192.168.0.254:/ashu-1          /mnt        nfs    defaults        0   0
:wq

# mount -a

# cd /net
# cd 192.168.0.1                        {it will show your share}



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