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Découvrir les partages d'un serveur.
Il est peut être utile de vérifier laccessibilité du service NFS distant.
## Avec NFSv3
Lorsque le serveur supporte le protocole **NFSv3**, on peut utiliser la commande **showmount** :
```bash
showmount -e 192.168.100.1
Export list for 192.168.100.1:
/export/media/disk_25 192.168.100.0/24
/export/media/disk_24 192.168.100.0/24
/export/media/disk_23 192.168.100.0/24
/export/media/disk_6 192.168.100.0/24
```
![](20201024-162640.png)
## Avec NFSv4
Lorsque le serveur supporte le protocole **NFSv4**, on utilise un dossier monté :
```
sudo mkdir /mnt/rpinas
sudo mount rpinas.acegrp.lan:/ /mnt/rpinas/
sudo ls /mnt/rpinas/media/
```
Un serveur peut aussi bien supporter **NFSv3** et **NFSv4** de manière simultanée. Le résultat sera identique.
## access denied by server while mounting
Si **mount** ne fonctionne pas, vous pouvez utiliser la commande suivante pour avoir plus d'informations :
```
sudo mount -v rpinas.acegrp.lan:/ /mnt/rpinas/
```
L'erreur est détaillée en retour :
```
mount.nfs: trying text-based options 'vers=4.2,addr=192.168.100.3,clientaddr=192.168.100.213'
mount.nfs: mount(2): Permission denied
mount.nfs: trying text-based options 'vers=4,minorversion=1,addr=192.168.100.3,clientaddr=192.168.100.213'
mount.nfs: mount(2): Permission denied
mount.nfs: trying text-based options 'vers=4,addr=192.168.100.3,clientaddr=192.168.100.213'
mount.nfs: mount(2): Permission denied
mount.nfs: trying text-based options 'addr=192.168.100.3'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying 192.168.100.3 prog 100003 vers 3 prot TCP port 2049
mount.nfs: prog 100005, trying vers=3, prot=17
mount.nfs: trying 192.168.100.3 prog 100005 vers 3 prot UDP port 35525
mount.nfs: mount(2): Permission denied
```