path: root/po/it/man4/random.4.po

# Italian translation of manpages
# This file is distributed under the same license as the manpages-l10n package.
# Copyright © of this file:
# Ottavio G. Rizzo <rizzo@pluto.linux.it>, 1999.
# Giulio Daprelà <giulio@pluto.it>, 2005.
# Elisabetta Galli <lab@kkk.it>, 2007-2008.
# Marco Curreli <marcocurreli@tiscali.it>, 2013, 2015-2018, 2020, 2021.
msgid ""
msgstr ""
"Project-Id-Version: manpages-l10n 4.0.0\n"
"POT-Creation-Date: 2024-06-01 06:14+0200\n"
"PO-Revision-Date: 2021-04-07 00:11+0200\n"
"Last-Translator: Marco Curreli <marcocurreli@tiscali.it>\n"
"Language-Team: Italian <pluto-ildp@lists.pluto.it>\n"
"Language: it\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=2; plural=(n != 1);\n"
"X-Generator: Lokalize 20.12.3\n"

#. type: TH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, fuzzy, no-wrap
#| msgid "I</dev/random>"
msgid "random"
msgstr "I</dev/random>"

#. type: TH
#: archlinux debian-unstable opensuse-tumbleweed
#, no-wrap
msgid "2024-05-02"
msgstr "2 maggio 2024"

#. type: TH
#: archlinux debian-unstable
#, fuzzy, no-wrap
#| msgid "Linux man-pages 6.7"
msgid "Linux man-pages 6.8"
msgstr "Linux man-pages 6.7"

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "NAME"
msgstr "NOME"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "random, urandom - kernel random number source devices"
msgstr "random, urandom - dispositivi kernel che producono numeri casuali"

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "SYNOPSIS"
msgstr "SINTASSI"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "#include E<lt>linux/random.hE<gt>\n"
msgstr "#include E<lt>linux/random.hE<gt>\n"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<int ioctl(>I<fd>B<, RND>I<request>B<, >I<param>B<);>\n"
msgstr "B<int ioctl(>I<fd>B<, RND>I<request>B<, >I<param>B<);>\n"

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "DESCRIPTION"
msgstr "DESCRIZIONE"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The character special files I</dev/random> and I</dev/urandom> (present "
"since Linux 1.3.30)  provide an interface to the kernel's random number "
"generator.  The file I</dev/random> has major device number 1 and minor "
"device number 8.  The file I</dev/urandom> has major device number 1 and "
"minor device number 9."
msgstr ""
"I file speciali a caratteri I</dev/random> e I</dev/urandom> (presenti a "
"partire da Linux 1.3.30) forniscono un'interfaccia al generatore del kernel "
"di numeri casuali. Il file I<dev/random> ha numero primario 1 e numero "
"secondario 8. Il file I</dev/urandom> ha numero primario 1 e numero "
"secondario 9."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The random number generator gathers environmental noise from device drivers "
"and other sources into an entropy pool.  The generator also keeps an "
"estimate of the number of bits of noise in the entropy pool.  From this "
"entropy pool, random numbers are created."
msgstr ""
"Il generatore di numeri casuali raccoglie rumore di fondo dai dispositivi "
"dei driver e da altre sorgenti nella fonte di entropia. Il generatore "
"mantiene anche una stima del numero di bit di rumore nella fonte di "
"entropia. Da questa fonte di entropia vengono creati i numeri casuali."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Linux 3.17 and later provides the simpler and safer B<getrandom>(2)  "
"interface which requires no special files; see the B<getrandom>(2)  manual "
"page for details."
msgstr ""
"Linux 3.17 e successivi forniscono la più semplice e sicura interfaccia "
"B<getrandom>(2) che non richiede nessun file speciale; si veda la pagina di "
"manuale di B<getrandom>(2) per i dettagli."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"When read, the I</dev/urandom> device returns random bytes using a "
"pseudorandom number generator seeded from the entropy pool.  Reads from this "
"device do not block (i.e., the CPU is not yielded), but can incur an "
"appreciable delay when requesting large amounts of data."
msgstr ""
"Quando viene letto, il dispositivo I</dev/urandom> restituisce un numero di "
"byte casuali prodotto da un generatore di numeri pseudocasuali inizializzato "
"tramite la fonte di entropia. Le letture da questo dispositivo non sono "
"bloccanti (cioè, la CPU non viene impegnata/risponde immediatamente), ma si "
"può avere un ritardo apprezzabile qualora vengano richieste grandi quantità "
"di dati."

#.  This is a real problem; see
#.  commit 9b4d008787f864f17d008c9c15bbe8a0f7e2fc24
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"When read during early boot time, I</dev/urandom> may return data prior to "
"the entropy pool being initialized.  If this is of concern in your "
"application, use B<getrandom>(2)  or I</dev/random> instead."
msgstr ""
"Quando viene letto durante la fase di inizializzazione del sistema I</dev/"
"urandom> può restituire dati prima che sia disponibile la fonte di entropia. "
"Se questo è fonte di problemi per la propria applicazione, si usi invece "
"B<getrandom>(2) o I</dev/random>."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The I</dev/random> device is a legacy interface which dates back to a time "
"where the cryptographic primitives used in the implementation of I</dev/"
"urandom> were not widely trusted.  It will return random bytes only within "
"the estimated number of bits of fresh noise in the entropy pool, blocking if "
"necessary.  I</dev/random> is suitable for applications that need high "
"quality randomness, and can afford indeterminate delays."
msgstr ""
"Il dispositivo I</dev/random> è un'interfaccia disponibile già da molto "
"tempo, risalente a quando le primitive crittografiche usate "
"nell'implementazione di I</dev/urandom> non erano generalmente ritenute "
"sicure.  Esso restituisce solo un numero di byte casuali prendendoli dal "
"numero stimato di bit di rumore recente fornito dalla fonte di entropia, "
"tenendo in attesa il chiamante se necessario. I</dev/random> è adatto ad usi "
"che richiedono un alto grado di casualità, e può implicare ritardi "
"indeterminati."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, fuzzy
#| msgid ""
#| "When the entropy pool is empty, reads from I</dev/random> will block "
#| "until additional environmental noise is gathered.  If B<open>(2)  is "
#| "called for I</dev/random> with the B<O_NONBLOCK> flag, a subsequent "
#| "B<read>(2)  will not block if the requested number of bytes is not "
#| "available.  Instead, the available bytes are returned.  If no byte is "
#| "available, B<read>(2)  will return -1 and I<errno> will be set to "
#| "B<EAGAIN>."
msgid ""
"When the entropy pool is empty, reads from I</dev/random> will block until "
"additional environmental noise is gathered.  Since Linux 5.6, the "
"B<O_NONBLOCK> flag is ignored as I</dev/random> will no longer block except "
"during early boot process.  In earlier versions, if B<open>(2)  is called "
"for I</dev/random> with the B<O_NONBLOCK> flag, a subsequent B<read>(2)  "
"will not block if the requested number of bytes is not available.  Instead, "
"the available bytes are returned.  If no byte is available, B<read>(2)  will "
"return -1 and I<errno> will be set to B<EAGAIN>."
msgstr ""
"Quando la fonte di entropia è vuota, le letture di I</dev/random> vengono "
"bloccate finché non viene raccolto abbastanza rumore ambientale. Se "
"B<open>(2) è chiamato da I</dev/random> col flag B<O_NONBLOCK>, una "
"successiva lettura di B<read>(2) non verrà bloccata se il numero di byte "
"richiesti non è disponibile. Vengono invece restituiti i byte disponibili. "
"Se nessun byte è disponibile, B<read>(2) restituirà -1 e I<errno> verrà "
"impostato a B<EAGAIN>."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The B<O_NONBLOCK> flag has no effect when opening I</dev/urandom>.  When "
"calling B<read>(2)  for the device I</dev/urandom>, reads of up to 256 bytes "
"will return as many bytes as are requested and will not be interrupted by a "
"signal handler.  Reads with a buffer over this limit may return less than "
"the requested number of bytes or fail with the error B<EINTR>, if "
"interrupted by a signal handler."
msgstr ""
"Il flag B<O_NONBLOCK> non ha nessun effetto quando si apre I</dev/urandom>. "
"Quando si chiama B<read>(2) per il dispositivo I</dev/urandom>, letture fino "
"a 256 byte retituiranno tanti byte quanti ne vengono richiesti e non "
"verranno interrotti da un gestore di segnali. Letture con un buffer oltre "
"questo limite possono restituire un numero di byte minore di quello "
"richiesto o fallire con l'errore B<EINTR>, se interrotto da un gestore di "
"segnali."

#.  commit 79a8468747c5f95ed3d5ce8376a3e82e0c5857fc
#.  SEC_XFER_SIZE in drivers/char/random.c
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, fuzzy
#| msgid ""
#| "Since Linux 3.16, a B<read>(2)  from I</dev/urandom> will return at most "
#| "32\\ MB.  A B<read>(2)  from I</dev/random> will return at most 512 bytes "
#| "(340 bytes on Linux kernels before version 2.6.12)."
msgid ""
"Since Linux 3.16, a B<read>(2)  from I</dev/urandom> will return at most "
"32\\ MB.  A B<read>(2)  from I</dev/random> will return at most 512 bytes "
"(340 bytes before Linux 2.6.12)."
msgstr ""
"Da Linux 3.16, una chiamata B<read>(2) da I</dev/urandom> restituirà al "
"massimo 32\\ MB. Una chiamata B<read>(2) da I</dev/random> restituirà al "
"massimo 512 byte (340 byte sui kernel Linux antecedenti alla versione "
"2.6.12)."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Writing to I</dev/random> or I</dev/urandom> will update the entropy pool "
"with the data written, but this will not result in a higher entropy count.  "
"This means that it will impact the contents read from both files, but it "
"will not make reads from I</dev/random> faster."
msgstr ""
"La scrittura su I</dev/random> o I</dev/urandom> aggiorna la fonte "
"d'entropia con i dati scritti, ma ciò non si tradurrà in un numero di "
"entropia più alto. Ciò vuo dire che esso influirà sui contenuti letti da "
"entrambi i file, ma non farà letture da I</dev/random> più velocemente."

#. type: SS
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "Usage"
msgstr "Uso"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The I</dev/random> interface is considered a legacy interface, and I</dev/"
"urandom> is preferred and sufficient in all use cases, with the exception of "
"applications which require randomness during early boot time; for these "
"applications, B<getrandom>(2)  must be used instead, because it will block "
"until the entropy pool is initialized."
msgstr ""
"L'interfaccia I</dev/random> è considerata un'interfaccia da mantenere per "
"compatibilità col passato, mentre I</dev/urandom> è preferito e sufficiente "
"in tutti i casi d'uso, fatta eccezione per applicazioni che richiedono "
"casualità durante la fase di inizializzazione del sistema; per queste "
"applicazioni si deve usare invece B<getrandom>(2), che non risponderà "
"all'applicazione fino a quando la fonte di entropia non viene inizializzata."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"If a seed file is saved across reboots as recommended below, the output is "
"cryptographically secure against attackers without local root access as soon "
"as it is reloaded in the boot sequence, and perfectly adequate for network "
"encryption session keys.  (All major Linux distributions have saved the seed "
"file across reboots since 2000 at least.)  Since reads from I</dev/random> "
"may block, users will usually want to open it in nonblocking mode (or "
"perform a read with timeout), and provide some sort of user notification if "
"the desired entropy is not immediately available."
msgstr ""
"Se si salva un file seed ai riavvii, come si raccomanda più avanti, l'output "
"sarà crittograficamente al sicuro dagli attaccanti senza accesso di root in "
"locale dato che viene ricaricato nella sequenza di boot, e sarà "
"perfettamente adeguato alle chiavi criptate per le sessioni di rete.  (Tutte "
"le più importanti distribuzioni Linux  hanno salvato il file seed ai riavvii "
"almeno dal 2000.) Dato che le letture da I</dev/random> possono bloccarsi, "
"gli utenti solitamente vorranno aprirlo in modo non bloccante (o eseguire "
"una lettura senza timeout), e fornire un qualche tipo di notifica se "
"l'entropia desiderata non è immediatamente disponibile."

#. type: SS
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "Configuration"
msgstr "Configurazione"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"If your system does not have I</dev/random> and I</dev/urandom> created "
"already, they can be created with the following commands:"
msgstr ""
"Se il sistema non comprende già I</dev/random> né I</dev/urandom>, li si può "
"creare coi seguenti comandi:"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"mknod -m 666 /dev/random c 1 8\n"
"mknod -m 666 /dev/urandom c 1 9\n"
"chown root:root /dev/random /dev/urandom\n"
msgstr ""
"mknod -m 666 /dev/random c 1 8\n"
"mknod -m 666 /dev/urandom c 1 9\n"
"chown root:root /dev/random /dev/urandom\n"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"When a Linux system starts up without much operator interaction, the entropy "
"pool may be in a fairly predictable state.  This reduces the actual amount "
"of noise in the entropy pool below the estimate.  In order to counteract "
"this effect, it helps to carry entropy pool information across shut-downs "
"and start-ups.  To do this, add the lines to an appropriate script which is "
"run during the Linux system start-up sequence:"
msgstr ""
"Quando un sistema Linux viene avviato senza molta interazione da parte di un "
"utente, la fonte di entropia potrebbe essere in una condizione tutto sommato "
"prevedibile.  Questo porta a sovrastimare la quantità di rumore realmente "
"presente nella fonte di entropia. Per contrastare questo effetto, può "
"aiutare riportare le informazioni nella fonte di entropia fra un arresto e "
"un riavvio. Per farlo, si aggiungano le righe ad uno script appropriato che "
"venga eseguito durante le procedure di avvio di un sistema Linux:"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"echo \"Initializing random number generator...\"\n"
"random_seed=/var/run/random-seed\n"
"# Carry a random seed from start-up to start-up\n"
"# Load and then save the whole entropy pool\n"
"if [ -f $random_seed ]; then\n"
"    cat $random_seed E<gt>/dev/urandom\n"
"else\n"
"    touch $random_seed\n"
"fi\n"
"chmod 600 $random_seed\n"
"poolfile=/proc/sys/kernel/random/poolsize\n"
"[ -r $poolfile ] && bits=$(cat $poolfile) || bits=4096\n"
"bytes=$(expr $bits / 8)\n"
"dd if=/dev/urandom of=$random_seed count=1 bs=$bytes\n"
msgstr ""
"echo \"Inizializzazione del generatore di numeri casuali...\"\n"
"random_seed=/var/run/random-seed\n"
"# Carry a random seed from start-up to start-up\n"
"# Load and then save the whole entropy pool\n"
"if [ -f $random_seed ]; then\n"
"    cat $random_seed E<gt>/dev/urandom\n"
"else\n"
"    touch $random_seed\n"
"fi\n"
"chmod 600 $random_seed\n"
"poolfile=/proc/sys/kernel/random/poolsize\n"
"[ -r $poolfile ] && bits=$(cat $poolfile) || bits=4096\n"
"bytes=$(expr $bits / 8)\n"
"dd if=/dev/urandom of=$random_seed count=1 bs=$bytes\n"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Also, add the following lines in an appropriate script which is run during "
"the Linux system shutdown:"
msgstr ""
"Inoltre, si aggiungano le righe seguenti ad uno script appropriato da "
"eseguire durante le procedure di arresto di un sistema Linux:"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"# Carry a random seed from shut-down to start-up\n"
"# Save the whole entropy pool\n"
"echo \"Saving random seed...\"\n"
"random_seed=/var/run/random-seed\n"
"touch $random_seed\n"
"chmod 600 $random_seed\n"
"poolfile=/proc/sys/kernel/random/poolsize\n"
"[ -r $poolfile ] && bits=$(cat $poolfile) || bits=4096\n"
"bytes=$(expr $bits / 8)\n"
"dd if=/dev/urandom of=$random_seed count=1 bs=$bytes\n"
msgstr ""
"# Riporta un seme casuale dall'arresto al riavvio.\n"
"# Salva l'intera fonte di entropia\n"
"echo \"Salvataggio del seme casuale...\"\n"
"random_seed=/var/run/random-seed\n"
"touch $random_seed\n"
"chmod 600 $random_seed\n"
"poolfile=/proc/sys/kernel/random/poolsize\n"
"[ -r $poolfile ] && bits=$(cat $poolfile) || bits=4096\n"
"bytes=$(expr $bits / 8)\n"
"dd if=/dev/urandom of=$random_seed count=1 bs=$bytes\n"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"In the above examples, we assume Linux 2.6.0 or later, where I</proc/sys/"
"kernel/random/poolsize> returns the size of the entropy pool in bits (see "
"below)."
msgstr ""
"Negli esempi visti prima, si presuppone che la versione di Linux sia la "
"2.6.0 o successiva, dove I</proc/sys/kernel/random/poolsize> restituisce la "
"dimensione della fonte di entropia in bit (si veda più avanti)."

#. type: SS
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "/proc interfaces"
msgstr "Interfaccia /proc"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, fuzzy
#| msgid ""
#| "The files in the directory I</proc/sys/kernel/random> (present since "
#| "2.3.16) provide additional information about the I</dev/random> device:"
msgid ""
"The files in the directory I</proc/sys/kernel/random> (present since Linux "
"2.3.16) provide additional information about the I</dev/random> device:"
msgstr ""
"I file nella directory I</proc/sys/kernel/random> (presente da 2.3.16) "
"forniscono informazioni aggiuntive aldispositivo I</dev/random>:"

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "I<entropy_avail>"
msgstr "I<entropy_avail>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"This read-only file gives the available entropy, in bits.  This will be a "
"number in the range 0 to 4096."
msgstr ""
"Questo file di sola lettura fornisce l'entropia disponibile, in bit. Questo "
"sarà un numero nell'intervallo da 0 a 4096."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "I<poolsize>"
msgstr "I<poolsize>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"This file gives the size of the entropy pool.  The semantics of this file "
"vary across kernel versions:"
msgstr ""
"Questo file fornisce la dimensione della fonte di entropia. La semantica di "
"questo file è diversa a seconda della versione del kernel:"

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "Linux 2.4:"
msgstr "Linux 2.4:"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"This file gives the size of the entropy pool in I<bytes>.  Normally, this "
"file will have the value 512, but it is writable, and can be changed to any "
"value for which an algorithm is available.  The choices are 32, 64, 128, "
"256, 512, 1024, or 2048."
msgstr ""
"Questo file indica la dimensione della fonte di entropia in I<byte>. "
"Normalmente questo file ha valore 512, ma è scrivibile e può essere cambiato "
"in qualunque valore per il quale sia disponibile un algoritmo. Le scelte "
"sono: 32, 64, 128, 256, 512, 1024 o 2048."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "Linux 2.6 and later:"
msgstr "Linux 2.6 e successivo:"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"This file is read-only, and gives the size of the entropy pool in I<bits>.  "
"It contains the value 4096."
msgstr ""
"Questo file è di sola lettura, e indica la dimensione della fonte di "
"entropia in I<bit>. Contiene il valore 4096."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "I<read_wakeup_threshold>"
msgstr "I<read_wakeup_threshold>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"This file contains the number of bits of entropy required for waking up "
"processes that sleep waiting for entropy from I</dev/random>.  The default "
"is 64."
msgstr ""
"Questo file contiene il numero di bit di entropia richiesti per svegliare i "
"processi che dormono in attesa dell'entropia da I</dev/random>. Il valore "
"predefinito è 64."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "I<write_wakeup_threshold>"
msgstr "I<write_wakeup_threshold>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"This file contains the number of bits of entropy below which we wake up "
"processes that do a B<select>(2)  or B<poll>(2)  for write access to I</dev/"
"random>.  These values can be changed by writing to the files."
msgstr ""
"Questo file contiene il numero di bit di entropia sotto i quali vengono "
"svegliati i processi che eseguono un B<select>(2) o B<poll>(2) per accedere "
"in scrittura a I</dev/random>. Questi valori possono venire cambiati "
"scrivendo sui file."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "I<uuid> and I<boot_id>"
msgstr "I<uuid> e I<boot_id>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"These read-only files contain random strings like 6fd5a44b-35f4-4ad4-"
"a9b9-6b9be13e1fe9.  The former is generated afresh for each read, the latter "
"was generated once."
msgstr ""
"Questi file di sola lettura contengono stringhe casuali come "
"6fd5a44b-35f4-4ad4-a9b9-6b9be13e1fe9. Il più vecchio è generato di nuovo a "
"ciascuna lettura, l'ultimo viene generato una volta."

#. type: SS
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "ioctl(2) interface"
msgstr "Interfaccia ioctl(2)"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The following B<ioctl>(2)  requests are defined on file descriptors "
"connected to either I</dev/random> or I</dev/urandom>.  All requests "
"performed will interact with the input entropy pool impacting both I</dev/"
"random> and I</dev/urandom>.  The B<CAP_SYS_ADMIN> capability is required "
"for all requests except B<RNDGETENTCNT>."
msgstr ""
"Le seguenti richieste B<ioctl>(2) sono definite su descrittori di file "
"connessi o a I</dev/random> o a I</dev/urandom>. Tutte le richieste "
"effettuate interagiscono con la fonte di entropia di input incidendo sia su "
"I</dev/random> che su I</dev/urandom>. La capacità B<CAP_SYS_ADMIN> è "
"necessaria per tutte le richieste eccetto che per B<RNDGETENTCNT>."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<RNDGETENTCNT>"
msgstr "B<RNDGETENTCNT>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Retrieve the entropy count of the input pool, the contents will be the same "
"as the I<entropy_avail> file under proc.  The result will be stored in the "
"int pointed to by the argument."
msgstr ""
"Recupera il conteggio di entropia della fonte di input, il contenuto sarà lo "
"stesso del file I<entropy_avail> sotto proc. Il risultato verrà memorizzato "
"nell'int indicato dall'argomento."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<RNDADDTOENTCNT>"
msgstr "B<RNDADDTOENTCNT>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Increment or decrement the entropy count of the input pool by the value "
"pointed to by the argument."
msgstr ""
"Incrementa o decrementa il numero di entropia della fonte di input del "
"valore indicato dall'argomento."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<RNDGETPOOL>"
msgstr "B<RNDGETPOOL>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "Removed in Linux 2.6.9."
msgstr "Rimosso in Linux 2.6.9."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<RNDADDENTROPY>"
msgstr "B<RNDADDENTROPY>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Add some additional entropy to the input pool, incrementing the entropy "
"count.  This differs from writing to I</dev/random> or I</dev/urandom>, "
"which only adds some data but does not increment the entropy count.  The "
"following structure is used:"
msgstr ""
"Aggiunge ulterire entropia alla fonte di input, incrementando il numero di "
"entropia. Questo differisce dallo scrivere su I</dev/random> o I</dev/"
"urandom>, che aggiunge solo qualche dato ma non incrementa il numero di "
"entropia. Viene usata la seguente struttura:"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"struct rand_pool_info {\n"
"    int    entropy_count;\n"
"    int    buf_size;\n"
"    __u32  buf[0];\n"
"};\n"
msgstr ""
"struct rand_pool_info {\n"
"    int    entropy_count;\n"
"    int    buf_size;\n"
"    __u32  buf[0];\n"
"};\n"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Here I<entropy_count> is the value added to (or subtracted from) the entropy "
"count, and I<buf> is the buffer of size I<buf_size> which gets added to the "
"entropy pool."
msgstr ""
"Dove I<entropy_count> è il valore aggiunto (o sottratto) al numero di "
"entropia, e I<buf> è il buffer di dimensione I<buf_size> che viene aggiunto "
"alla fonte di entropia."

#. type: TP
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-tumbleweed
#, fuzzy, no-wrap
#| msgid "B<RNDADDTOENTCNT>"
msgid "B<RNDZAPENTCNT>"
msgstr "B<RNDADDTOENTCNT>"

#. type: TQ
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-tumbleweed
#, fuzzy, no-wrap
#| msgid "B<RNDGETPOOL>"
msgid "B<RNDCLEARPOOL>"
msgstr "B<RNDGETPOOL>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Zero the entropy count of all pools and add some system data (such as wall "
"clock) to the pools."
msgstr ""
"Azzera il conteggio di entropia di tutte le fonti e aggiunge alcuni dati di "
"sistema (come il minutaggio) alle fonti."

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "FILES"
msgstr "FILE"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "I</dev/random>"
msgstr "I</dev/random>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "I</dev/urandom>"
msgstr "I</dev/urandom>"

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "NOTES"
msgstr "NOTE"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"For an overview and comparison of the various interfaces that can be used to "
"obtain randomness, see B<random>(7)."
msgstr ""
"Per una panoramica e un confronto fra le varie interfacce che possono essere "
"usate per ottenere casualità, si veda B<random>(7)."

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "BUGS"
msgstr "BUG"

#.  .SH AUTHOR
#.  The kernel's random number generator was written by
#.  Theodore Ts'o (tytso@athena.mit.edu).
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"During early boot time, reads from I</dev/urandom> may return data prior to "
"the entropy pool being initialized."
msgstr ""
"Durante la fase di inizializzazione del sistema, le letture da I</dev/"
"urandom> possono restituire dati prima che la fonte di entropia venga "
"inizializzata."

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "SEE ALSO"
msgstr "VEDERE ANCHE"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<mknod>(1), B<getrandom>(2), B<random>(7)"
msgstr "B<mknod>(1), B<getrandom>(2), B<random>(7)"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "RFC\\ 1750, \"Randomness Recommendations for Security\""
msgstr "RFC\\ 1750, \"Randomness Recommendations for Security\""

#. type: TH
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid "2022-12-04"
msgstr "4 dicembre 2022"

#. type: TH
#: debian-bookworm
#, no-wrap
msgid "Linux man-pages 6.03"
msgstr "Linux man-pages 6.03"

#. type: TP
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid "B<RNDZAPENTCNT>, B<RNDCLEARPOOL>"
msgstr "B<RNDZAPENTCNT>, B<RNDCLEARPOOL>"

#. type: TH
#: fedora-40 fedora-rawhide mageia-cauldron
#, no-wrap
msgid "2023-10-31"
msgstr "31 ottobre 2023"

#. type: TH
#: fedora-40 mageia-cauldron
#, no-wrap
msgid "Linux man-pages 6.06"
msgstr "Linux man-pages 6.06"

#. type: TH
#: fedora-rawhide
#, no-wrap
msgid "Linux man-pages 6.7"
msgstr "Linux man-pages 6.7"

#. type: TH
#: opensuse-leap-15-6
#, no-wrap
msgid "Linux man-pages 6.04"
msgstr "Linux man-pages 6.04"

#. type: TH
#: opensuse-tumbleweed
#, fuzzy, no-wrap
#| msgid "Linux man-pages 6.7"
msgid "Linux man-pages (unreleased)"
msgstr "Linux man-pages 6.7"