Difference between revisions of "/dev/urandom"
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| + | [[wikipedia:urandom]] | ||
| + | [[head]] -10 [[/dev/]][[urandom]] | [[sha512sum]] | cut -b 1-30 | ||
| − | + | [[head]] -c 16 /dev/urandom | [[od]] -An -t x | tr -d ' ' | |
| + | https://github.com/coreutils/coreutils/blob/master/NEWS | ||
| + | shred, sort, shuf: now use an internal pseudorandom generator by default. | ||
| + | This is mainly noticeable in shred where the 3 random passes it does by | ||
| + | default should proceed at the speed of the disk. Previously /dev/urandom | ||
| + | was used if available, which is relatively slow on GNU/Linux systems. | ||
| + | |||
| + | == Related == | ||
| + | * <code>[[/dev/random]]</code> | ||
| + | * [[Password generation]] | ||
== See also == | == See also == | ||
* {{random}} | * {{random}} | ||
* [[oathtool]] | * [[oathtool]] | ||
| + | * {{Linux Kernel}} | ||
| + | |||
| + | [[Category:Computing]] | ||
Latest revision as of 13:36, 8 October 2022
head -10 /dev/urandom | sha512sum | cut -b 1-30
head -c 16 /dev/urandom | od -An -t x | tr -d ' '
https://github.com/coreutils/coreutils/blob/master/NEWS
shred, sort, shuf: now use an internal pseudorandom generator by default. This is mainly noticeable in shred where the 3 random passes it does by default should proceed at the speed of the disk. Previously /dev/urandom was used if available, which is relatively slow on GNU/Linux systems.
Related[edit]
See also[edit]
- Random,
/dev/urandom - oathtool
- Linux Kernel: namespaces, Cgroups, OOM, proc, Linux Kernel changelog,
sysctl, userfaultfd, Grub, ENOSPC, ENOMEM, DKMS, syscall, Transparent huge pages, smatch, sysfs, vm.swappiness, CFS, Runlevel, Jens Axboe, Consistent Network Device Naming, Initial ramdisk (initrd),modprobe, MTD, Linux Kernel vulnerabilities,/sys/kernel/, KernelCare,unix://, Data Plane Development Kit (DPDK)
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