Hello Folks!

There are times when a random password is to be generated during developing applications. Like you are creating database, you need to set a strong password for users. You are creating an admin user in any application, then also a strong password is to be generated.

A good question here is what is meant by a strong password. Here are the characteristics of a secure password

  • Minimum length of password should be 8 characters. More is better.
  • Password should be a combination of alphabets, numbers and special characters ($#!, etc.)
  • It should have both lowercase and uppercase alphabets.

There are many different ways to generate a random password but I’ll go through one of the best ways that will fulfill the characteristics of strong password.

pwgen is an automatic password generator. This tool is not available by default on Linux distributions. So, we will install it.

sudo apt-get install pwgen

pwgen -h
Usage: pwgen [ OPTIONS ] [ pw_length ] [ num_pw ]

Options supported by pwgen:
  -c or --capitalize
	Include at least one capital letter in the password
  -A or --no-capitalize
	Don't include capital letters in the password
  -n or --numerals
	Include at least one number in the password
  -0 or --no-numerals
	Don't include numbers in the password
  -y or --symbols
	Include at least one special symbol in the password
  -r <chars> or --remove-chars=<chars>
	Remove characters from the set of characters to generate passwords
  -s or --secure
	Generate completely random passwords
  -B or --ambiguous
	Don't include ambiguous characters in the password
  -h or --help
	Print a help message
  -H or --sha1=path/to/file[#seed]
	Use sha1 hash of given file as a (not so) random generator
  -C
	Print the generated passwords in columns
  -1
	Don't print the generated passwords in columns
  -v or --no-vowels
	Do not use any vowels so as to avoid accidental nasty words

Let’s generate a random strong password using pwgen.

pwgen -c -n -y 16 1

Re-run this command to generate new password combinations until you feel good with one 🙂

So, guys give this a try in generating your next password.

Have a good day!


Aryan

Hey Friends, Thank you for visiting my blog and spending some time reading it. Myself Aryan who works in computer technologies and keeps on pen down my understanding of various topics. This blog is a write-up of my understanding of various technologies after reading different materials about it. I hope that it helps you in some way.

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