PWGen

Passwords generated by pwgen are easy to remember and quite secure. Technically speaking, easy-to-remember passwords are no more secure than randomly generated passwords. However, in most cases, passwords generated by pwgen are secure enough, except for online banking passwords, etc. Except for high security levels, the advantage of using passwords that are easy to remember is that you will not write them down or save them somewhere on your computer, which is inherently unsafe.

Features

wgen can generate random passwords that are difficult to remember or passwords that are easy to remember. You can use it interactively or in batch mode via a script.

By default, pwgen sends many passwords to standard output. Generally speaking, we do not need this result; however, this output is useful if you want to select one-time passwords to be entered manually. When generating passwords, pwgen Try to include numbers and uppercase letters in passwords by default.

Tips

The pwgen format is: pwgen <options> <password_length> <number_of_passwords>

Commonly used options for pwgen are:

-1 Output one password per line

-c must contain uppercase letters

-n must contain numbers

-s random password

Feature introduction

More interesting parameters of pwgen command:

-0: The password does not contain numbers.

-B, --ambiguous: The password does not contain confusing characters, such as "1" and "l", "0" and "O".

-v, --no-vowels: The password does not contain vowels or numbers that may be mistaken for vowels.

Let’s look at some specific examples:

1. Use the command pwgen to generate a unique, random password of 10 characters in length.

Generate a unique random password

Generate several sets of unique random passwords with a length of 50 characters in one go!

Generate multiple sets of random passwords

2. You can also use makepasswd to generate a unique random password of a given length each time. Before you play with the makepasswd command, make sure you have it installed. If not, try using the Apt or YUM package manager To install the makepasswd package.

Generate a random password with a length of 10 characters. The default length of the password generated by this command is 10.

Use makepasswd to generate unique passwords

Generate a random password of 50 characters in length.

Generate a password of length 50

Generate 7 random passwords of 20 characters in length.