How to export a volume over NFS on 3Engines Cloud[🔗](#how-to-export-a-volume-over-nfs-on-brand-name "Permalink to this headline")
===================================================================================================================================

**Server configuration**

Update your system:

```
sudo apt update && apt upgrade

```

Install necessary packages:

```
sudo apt install nfs-kernel-server

```

Create a new folder, which will be exported by NFS, e.g.:

```
sudo mkdir -p /mnt/<name of your folder>

```

Delete all access restrictions in the folder:

```
sudo chown -R nobody:nogroup /mnt/<name of your folder>/

```

You can also replace permisssions of files in the folder with your own preferences.

e.g.

```
sudo chmod 777 /mnt/<name of your folder>/

```

**Defining access permisions to NFS Server.**

In the file /etc/exports add the following line:

```
/mnt/<name of your folder>  <IP address of allowed client>(rw,sync,no_subtree_check)

```

where <IP address> is the address of the server allowed to access the folder /mnt/<name of your folder>

e.g.

```
# /etc/exports: the access control list for filesystems which may be exported

#        to NFS clients.  See exports(5).

#

# Example for NFSv2 and NFSv3:

# /srv/homes       hostname1(rw,sync,no_subtree_check) hostname2(ro,sync,no_subtree_check)

#

# Example for NFSv4:

# /srv/nfs4        gss/krb5i(rw,sync,fsid=0,crossmnt,no_subtree_check)

# /srv/nfs4/homes  gss/krb5i(rw,sync,no_subtree_check)

#

/mnt/<name of your folder>  <IP address of NFS server>(rw,sync,no_subtree_check)

```

You can also share your folder to more IP addresses:

```
/mnt/<name of your folder>  <IP address 1>(rw,sync,no_subtree_check)
/mnt/<name of your folder>  <IP address 2>(rw,sync,no_subtree_check)
/mnt/<name of your folder>  <IP address 3>(rw,sync,no_subtree_check)

```

You can also share the folder to all servers in a Subnet (instead of adding every IP address separately) by adding following line to /etc/exports (e.g. servers in 192.168.0.0/24):

```
/mnt/<name of your folder> 192.168.0.0/24(rw,sync,no_subtree_check)

```

When the configuration file /etc/exports is saved, invoke the following commands:

```
sudo exportfs -a
sudo systemctl restart nfs-kernel-server

```

**IT IS NECESSARY TO OPEN THE PORT 2049 IN A SECURITY GROUP!**

(The FAQ about opening ports in a security group is available at [How can I open new ports for http for my service or instance on 3Engines Cloud](../networking/How-can-I-open-new-ports-port-80-for-http-for-my-service-or-instance-on-3Engines-Cloud.html.md))

**Client Configuration**

Install required packages:

```
sudo apt install nfs-common

```

Mount the NFS folder:

```
sudo mount <IP address of your NFS server>:/mnt/<name of your folder in NFS server> <name of your folder in Client>/

```