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MP01 (0483) - Sistemes informàtics - DAM1AM/DAW1AM

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El fitxer de configuració per a NFS és:

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Si configurem un servidor NFS de forma que comparteixi la carpeta /devel llavors, si volem només la màquina amb adreça 192.168.1.5 pugui tenir accés a aquesta carpeta, la configuració del servidor tindrà el següent aspecte:

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En un servidor con NFS, la instrucción:

exportfs -ra

que es equivalente a:

systemctl reload nfs-kernel-server.service

sirve para:

 

 

 

* Nota: En el manual del comando exportfs encontramos lo siguiente:

OPTIONS

       -a     Export or unexport all directories.

       -o options,...

              Specify a list of export options in the same manner as in exports(5).

       -i     Ignore the /etc/exports file and files under /etc/exports.d directory.  Only default options and  options  given  on

              the command line are used.

       -r     Reexport  all  directories,  synchronizing /var/lib/nfs/etab with /etc/exports and files under /etc/exports.d.  This

              option removes entries in /var/lib/nfs/etab which have been deleted from /etc/exports or files under /etc/exports.d,

              and removes any entries from the kernel export table which are no longer valid.

       -u     Unexport one or more directories.

       -f     If  /proc/fs/nfsd  or /proc/fs/nfs is mounted, flush everything out of the kernel's export table.  Fresh entries for

              active clients are added to the kernel's export table by rpc.mountd when they make their next NFS mount request.

       -v     Be verbose. When exporting or unexporting, show what's going on. When displaying the current export list, also  dis‐

              play the list of export options.

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Cuando compartimos una carpeta en un servidor con NFSv3 de la siguiente forma:

/compartir/dades 192.168.1.0/24(rw,sync,no_subtree_check)

Entonces, en el cliente montaremos la carpeta remota con la siguiente instrucción:

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¿Qué herramienta debe instalar el cliente para acceder a carpetas NFS?

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¿En qué archivo del cliente se puede añadir una línea para montar automáticamente una carpeta NFS?

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Con NFS versión 3 NO podemos: (Marca 2 respuestas)

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¿Qué protocolo de transporte utiliza tradicionalmente NFS para ser rápido y ligero?

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Al fitxer de configuració de NFS tenim la següent informació:

/devel 192.168.1.0/24(ro,sync,no_subtree_check) 192.168.2.0/24(rw,sync,no_subtree_check)

 

Llavors:

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¿Qué comando se utiliza para instalar el servidor NFS en Debian/Ubuntu?

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