learnings

NFS server

Arch based (Manjaro)

$ sudo pacman -S nfs-utils

Debian based (Ubuntu)

$ sudo apt install nfs-kernel-server

Create (or choose folder for share)

$ mkdir ~/shared

Change configuration file

$ vim /etc/exports
# add the following line, where <user> is a user folder
/home/<user>/shared *(rw,sync,no_subtree_check,no_root_squash)

* - specifies the IP. In this case * means that any client is allowed to access the shared folder
rw - allows both read and write requests. The default is to disallow any request that changes the filesystem. This also can be set explicitly by ro parameter
sync - forces NFS to write changes to disk before replying. This results in a more stable and consistent environment since the reply reflects the actual state of the remote volume. However, it also reduces the speed of file operations.
no_subtree_check - disable subtree checking. Subtree cheking is a process where the host must check whether the file is actually still available in the exported tree for every request. This can cause many problems when a file is renamed while the client has it opened. In almost all cases, it is better to disable subtree checking. But this may have mild security implications.
no_root_squash - mainly useful for diskless clients. By default, NFS translates requests from a root user remotely into a non-privileged user on the server. This was intended as security feature to prevent a root account on the client from using the file system of the host as root. no_root_squash disables this behavior for certain shares.

To learn more about exports file, read man exports

Arch based (Manjaro)

$ sudo systemctl enable nfs-server
$ sudo systemctl start nfs-server

Debian based (Ubuntu)

$ sudo systemctl enable nfs-kernel-server
$ sudo systemctl restart nfs-kernel-server

Arch based (Manjaro)

$ sudo pacman -S nfs-utils

Debian based (Ubuntu)

$ sudo apt install nfs-common

Create client mount point

mkdir ~/remote_share

Mount remote NFS

sudo mount -t nfs server_ip:/shared ~/remote_share

Note, on Arch based distros, you need to start (and optionaly enable) nfs client:

# On Arch
$ sudo systemctl enable nfs-client.target
$ sudo systemctl restart nfs-client.target

Fill the /etc/fstab file with the following

<server_ip>:/home/<user>/shared ~/remote_share  nfs  defaults,timeo=900,retrans=5   0 0

Replace <server_ip> and <user> with appropriate values.

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