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Create random password using /dev/urandom

Tutorial Information
Name: Create random password using /dev/urandom
Submitter: NickTheGreek
Category: IPS Tutorials
Submitted: 13 Nov 2014
Updated: 13 Nov 2014
Views: 431
Rating: This tutorial is unrated.
Create random password using /dev/urandom
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Description:
In many situation administrators are affronted to generate passwords, however it¢s more secure to keep in eyes random password even that ordinary one.
Tutorial Instructions
In many situation administrators are affronted to generate passwords, however it¢s more secure to keep in eyes random password even that ordinarie one.
Well, for such use let¢s keep it simple and let¢s define some files:

/dev/random: is a special file that serves as a true random number generator or as a pseudorandom number generator.
/dev/urandom: (“unlocked” random source) which reuses the internal pool to produce more pseudo-random bits.

If your system does not have /dev/random and /dev/urandom created already, they can be created with the following commands:

CODE
$ mknod -m 644 /dev/random c 1 8
$ mknod -m 644 /dev/urandom c 1 9
$ chown root:root /dev/random /dev/urandom



CODE
$ tr -cd a-zA-Z0-9 < /dev/urandom | head -c 12; echo ""

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