mount + copy files to mounted directory how to enable?

with the following mount command I can copy from 10.112.12.180 any file to the linux machine (/mnt)

    mount -t nfs 10.112.12.180:/dir1/dir2/dir /mnt

my question if it possible to perform the other side: to copy from linux machine to 10.112.12.180 server

I try it but I get

 cp file /mnt
 cp: cannot create regular file `/mnt/file: Read-only file system

how to get solution for this (copy from linux to server?)

mount + copy files to mounted directory is it possible?

NFS can be quite tricky.

You should check /etc/exports file at the 10.112.12.180 and see if the share has been setup with read+write permissions (rw). A correct /etc/exports line should be something like

/dir1/dir2/dir xxx.xxx.xxx.xxx(rw)

... where xxx.xxx.xxx.xxx is the IP address (range) for your allowed NFS clients.

Also NFS might shoot you to the foot if you're trying to copy files as a different user than the one owning the NFS share.