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--- linux:tcpip:nfs [08/02/2019 04:47] – [apuntes] mate
+++ linux:tcpip:nfs [14/08/2021 11:20] (actual) – [+ info] mate
@@ Línia 8: / Línia 8: @@
 == puesta en marcha de server/client
-  * server : <code bash>
+  * server :
-sudo apt-get install nfs-kernel-server nfs-common
+    * configuración servicio:<code bash>
-sudo vim /etc/exports # añadir el recurso, con parámetros y restricciones
+sudo apt-get install nfs-kernel-server nfs-common portmap
+sudo vim /etc/exports # añadir el recurso, con parámetros y restricciones (según más abajo)
 sudo exportfs -ra
 sudo service nfs-kernel-server start
@@ Línia 16: / Línia 17: @@
 showmount -e
 </code>
+    * configuración directorio compartido:<code bash>
+mkdir /path/directorio/compartido
+chown nobody:nogroup /path/directorio/compartido</code>
   * client : <code bash>
 sudo apt-get install nfs-common
@@ Línia 21: / Línia 25: @@
 sudo mount -t nfs <ip>:<ruta> <ruta_local>
 </code>
+<code bash; /etc/fstab>
+<ip_NFS_server:/path/directorio/compartido /punto/montaje nfs rw,async,hard,intr,noexec 0 0
+</code>
+    * flags:
+      * rw: Read/write filesystem.
+      * ro: Read-only filesystem. Remote NFS clients can’t modify the filesystem.
+      * hard: Applications using files stored on an NFS will always wait if the server goes down. User cannot terminate the process unless the option intr is set.
+      * soft: Applications using files stored on an NFS will wait a specified time (using the timeo option) if the server goes down, and after that, will throw an error.
+      * intr: Allows user interruption of processes waiting on a NFS request.
+      * timeo=<num>: For use with the soft option. Specify the timeout for an NFS request.
+      * nolock: Disable file locks. Useful with older NFS servers.
+      * noexec: Disable execution of binaries or scripts on an NFS share.
+      * nosuid: Prevents users from gaining ownership of files on the NFS share.
+      * rsize=<num>: Sets the read block data size. Defaults to 8192 on NFSv2 and NFSv3, and 32768 on NFSv4.
+      * wsize=<num>: Sets the write block data size. Defaults to 8192 on NFSv2 and NFSv3, and 32768 on NFSv4.
+== /etc/exports
+<code bash; /etc/exports>
+/path/directorio/compartir [<ip> | <rango_ip>]/<mascara>(flags)
+</code>
+  * flags:
+    * rw : lectura-escritura
+    * ro : solo lectura
+    * root_squash : impide que un cliente remoto con permiso ROOT pueda ejercerlos
+    * subtree_check : Disable file location checks on partial volume exports. This option will speed up transfers on full volume exports.
+    * sync : Force all transfers to operate in synchronous mode, so all clients will wait until their operations are really done. This can avoid data corruption in the event of a server crash.
-=== apuntes
+== apuntes
   * quien puede montar (**/etc/exports**) :
 <code bash; /etc/exports/>/carpeta ip/mask (ro,root_squad) @ trusted (rw,no_root_squad)</code>
@@ Línia 30: / Línia 60: @@
 == + info
   * [[https://www.linode.com/docs/networking/nfs/how-to-mount-nfs-shares-on-debian-9/]]
+  * [[https://www.cyberciti.biz/faq/apple-mac-osx-nfs-mount-command-tutorial/]]