Le client et le serveur doivent être sur le même domaine.

Pour vérifier ça exécuter la commande

maitre@cahute:~$ sudo nfsidmap -d
beafrancois.fr

Si ça n'est pas la même chose sur un des PC, il faut modifier le fichier /etc/hostname:

<hostname>.beafrancois.fr

système

/mnt/stockage/system/mysql /var/lib/mysql none bind
/mnt/stockage/system/gitea /var/lib/gitea none bind
/mnt/stockage/system/web /var/www/html none bind

nfs

/mnt/stockage/multimedia /export/multimedia none bind
/mnt/stockage/famille /export/famille none bind
/mnt/stockage/partage /export/partage none bind
/mnt/stockage/homes/beatrice /export/home/beatrice none bind
/mnt/stockage/homes/francois /export/home/francois none bind

sur le nas les répertroires suivants sont exportés en nfs:

/etc/exports

/export/famille            192.168.1.0/255.255.255.192(rw,insecure,no_subtree_check)
/export/multimedia         192.168.1.0/255.255.255.192(rw,insecure,no_subtree_check)
/export/partage            192.168.1.0/255.255.255.192(rw,insecure,no_subtree_check)
/export/home/beatrice      192.168.1.0/255.255.255.192(rw,insecure,no_subtree_check)
/export/home/francois      192.168.1.0/255.255.255.192(rw,insecure,no_subtree_check)

sur le nas config nfs:

/etc/default/nfs-common

# If you do not set values for the NEED_ options, they will be attempted
# autodetected; this should be sufficient for most people. Valid alternatives
# for the NEED_ options are "yes" and "no".
 
# Do you want to start the statd daemon? It is not needed for NFSv4.
NEED_STATD="no"
 
# Options for rpc.statd.
#   Should rpc.statd listen on a specific port? This is especially useful
#   when you have a port-based firewall. To use a fixed port, set this
#   this variable to a statd argument like: "--port 4000 --outgoing-port 4001".
#   For more information, see rpc.statd(8) or http://wiki.debian.org/SecuringNFS
STATDOPTS=
 
# Do you want to start the idmapd daemon? It is only needed for NFSv4.
NEED_IDMAPD="yes"
 
# Do you want to start the gssd daemon? It is required for Kerberos mounts.
NEED_GSSD=

/etc/default/nfs-kernel-server

# Number of servers to start up
RPCNFSDCOUNT=8
 
# Runtime priority of server (see nice(1))
RPCNFSDPRIORITY=0
 
# Options for rpc.mountd.
# If you have a port-based firewall, you might want to set up
# a fixed port here using the --port option. For more information, 
# see rpc.mountd(8) or http://wiki.debian.org/SecuringNFS
# To disable NFSv4 on the server, specify '--no-nfs-version 4' here
RPCNFSDOPTS="-N 2 -N 3"
RPCMOUNTDOPTS="--manage-gids -N 2 - N 3"
 
# Do you want to start the svcgssd daemon? It is only required for Kerberos
# exports. Valid alternatives are "yes" and "no"; the default is "no".
NEED_SVCGSSD="no"
 
# Options for rpc.svcgssd.
RPCSVCGSSDOPTS=""

le fichier fstab ressemble à ça:

/etc/fstab

cahute.beafrancois.fr:/export/multimedia /mnt/nas-multimedia nfs4	rw,sync,hard,intr	0	0
cahute.beafrancois.fr:/export/partage	/mnt/nas-partage nfs4		rw,sync,hard,intr	0	0
cahute.beafrancois.fr:/export/famille	/mnt/nas-famille	nfs4	rw,sync,hard,intr	0	0
cahute.beafrancois.fr:/export/home/francois /mnt/francois/Nuage nfs4	rw,sync,hard,intr	0	0
cahute.beafrancois.fr:/export/home/beatrice /mnt/beatrice/Nuage nfs4	rw,sync,hard,intr	0       0

Sur les client wireguard

cahute.beafrancois.fr:/export/famille /mnt/nas-famille nfs4 user,noauto,x-systemd.automount,x-systemd.idle-timeout=60,_netdev,x-gvfs-show 0 0 cahute.beafrancois.fr:/export/partage /mnt/nas-partage nfs4 user,noauto,x-systemd.automount,x-systemd.idle-timeout=60,_netdev,x-gvfs-show 0 0 cahute.beafrancois.fr:/export/multimedia /mnt/nas-multimedia nfs4 user,noauto,x-systemd.automount,x-systemd.idle-timeout=60,_netdev,x-gvfs-show 0 0 cahute.beafrancois.fr:/export/home/francois /mnt/homes/francois nfs4 user,noauto,x-systemd.automount,x-systemd.idle-timeout=60,_netdev,x-gvfs-show 0 0 cahute.beafrancois.fr:/export/home/beatrice /mnt/homes/beatrice nfs4 user,noauto,x-systemd.automount,x-systemd.idle-timeout=60,_netdev,x-gvfs-show 0 0

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