Centos Wipe Out Server and Start Again

NFS Server and Customer Installation on CentOS 7

This guide explains how to configure an NFS server on CentOS vii. Network File System (NFS) is a popular distributed filesystem protocol that enables users to mount remote directories on their server. NFS lets you lot leverage storage space in a different location and allows you to write onto the same space from multiple servers or clients in an effortless manner. It, thus, works fairly well for directories that users need to access oftentimes. This tutorial explains the process of mounting an NFS share on a CentOS 7.vi server in simple and easy-to-follow steps.

1 Preliminary Note

I have fresh installed CentOS 7 server, on which I am going to install the NFS server. My CentOS server take hostname server1.case.com and IP every bit 192.168.0.100

If yous don't have a CentOS server installed yet, apply this tutorial for the bones operating organization installation. Additionally to the server, we need a CentOS seven client machine, this can be either a server or desktop system. In my instance, I volition use a CentOS 7 desktop with hostname client1.example.com and IP 192.168.0.101 every bit a client. I will run all the commands in this tutorial every bit the root user.

2 At NFS server end

As the starting time pace, we will install these packages on the CentOS server with yum:

yum install nfs-utils

Now create the directory that will be shared past NFS:

mkdir /var/nfsshare

Change the permissions of the folder equally follows:

chmod -R 755 /var/nfsshare
chown nfsnobody:nfsnobody/var/nfsshare

We utilize/var/nfsshare as a shared folder, if we utilise another drive such equally the/home directory, then the permission changes will cause a massive permissions problem and ruin the whole hierarchy. And then in instance, we want to share the /dwelling directory then permissions must not be changed.
Adjacent, we need to start the services and enable them to be started at kicking time.

systemctl enable rpcbind
systemctl enable nfs-server
systemctl enable nfs-lock
systemctl enable nfs-idmap
systemctl start rpcbind
systemctl start nfs-server
systemctl showtime nfs-lock
systemctl offset nfs-idmap

Now we volition share the NFS directory over the network a follows:

nano /etc/exports

We will make two sharing points /home and /var/nfsshare. Edit the exports file every bit follows:

                
                /var/nfsshare    192.168.0.101(rw,sync,no_root_squash,no_all_squash) /dwelling house            192.168.0.101(rw,sync,no_root_squash,no_all_squash)              

Note 192.168.0.101 is the IP of the client machine, if y'all wish that any other client should admission it you need to add it IP wise otherwise you tin add together "*" instead of IP for all IP access.

Condition is that it must exist pingable at both ends.

Finally, start the NFS service:

systemctl restart nfs-server

Again we need to add together the NFS service override in CentOS 7 firewall-cmd public zone service as:

firewall-cmd --permanent --zone=public --add-service=nfs
firewall-cmd --permanent --zone=public --add together-service=mountd
firewall-cmd --permanent --zone=public --add-service=rpc-bind
firewall-cmd --reload

Note: If information technology will be not done, and then information technology will give mistake for Connection Time Out at client side.

At present we are ready with the NFS server function.

3 NFS client end

In my instance, I take a CentOS 7 desktop as customer. Other CentOS versions will also work the aforementioned mode. Install the nfs-utild package equally follows:

yum install nfs-utils

Now create the NFS directory mount points:

mkdir -p /mnt/nfs/home
mkdir -p /mnt/nfs/var/nfsshare

Next, we will mount the NFS shared home directory in the customer machine every bit shown beneath:

mount -t nfs 192.168.0.100:/home /mnt/nfs/home/

It will mount /dwelling house of NFS server. Next we will mount the/var/nfsshare directory:

 mountain -t nfs 192.168.0.100:/var/nfsshare /mnt/nfs/var/nfsshare/

At present we are continued with the NFS share, we will crosscheck information technology as follows: Advertisement

df -kh

[[email protected] ~]# df -kh
Filesystem                    Size  Used Avail Use% Mounted on
/dev/mapper/centos-root        39G  1.1G   38G   3% /
devtmpfs                      488M     0  488M   0% /dev
tmpfs                         494M     0  494M   0% /dev/shm
tmpfs                         494M  six.7M  487M   2% /run
tmpfs                         494M     0  494M   0% /sys/fs/cgroup
/dev/mapper/centos-domicile        19G   33M   19G   i% /dwelling house
/dev/sda1                     497M  126M  372M  26% /boot
192.168.0.100:/var/nfsshare   39G  980M   38G   3% /mnt/nfs/var/nfsshare
192.168.0.100:/home           19G   33M   19G   ane% /mnt/nfs/home
[[email protected] ~]#

So we are continued with the NFS share.

Now we will cheque the read/write permissions in the shared path. At client enter the command:

touch on /mnt/nfs/var/nfsshare/test_nfs

And so we successfully configured an NFS-share.

4 Permanent NFS mounting

Nosotros have to re-mount the NFS share at the client after every reboot. Here are the steps to mount it permanently by adding the NFS-share in /etc/fstab file of customer machine:

nano /etc/fstab

Add the entries similar this:

[...]
192.168.0.100:/habitation    /mnt/nfs/home   nfs defaults 0 0 192.168.0.100:/var/nfsshare    /mnt/nfs/var/nfsshare   nfs defaults 0 0

Notation 192.168.0.100 is the server NFS-share  IP accost, it volition vary in your case.

This will make the permanent mount of the NFS-share. Now you can reboot the car and mount points will exist permanent even after the reboot.

Cheers, now we accept a successfully configured NFS-server over CentOS 7 :)

five Links

• CentOS: http://www.centos.org/

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Source: https://www.howtoforge.com/nfs-server-and-client-on-centos-7

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