If in doubt, create a longer password, or pass your generated password as input to another generator, or use multi-factor authentication. And it's certainly better than using 'Pa$$w0rD' for everything. When using this last option, we can provide more than one password in the file (one per line). ![]() Supposing our password is written in the password.txt file, we would write: openssl passwd -6 -in password.txt. You probably know when this is useful or not. All we have to do is to use the -in option, and pass the path of the file containing the password as argument. Have bad vision, but in general use of this option is not recom‐ Number of possible passwords significantly, and as such reduces Printed, such as 'l' and '1', or '0' or 'O'. Stil, pwgen put gives this caveat in its man page, describing its -B option: -B, -ambiguousĭon't use characters that could be confused by the user when You would want to use an option like this if you are resetting someone's password or giving a one-time passkey that needs to be communicated. However, you will at some point probably appreciate applications (like pwgen, KeePassX or LastPass) that give you an option to avoid easily confusable characters, like 1 and l and I. Setting a number of passwords to generate. ![]() Setting the length of generated passwords. ![]() Here are some key features of 'APG': Setting maximum percentage of special characters. APG The Automatic Password Generator, or APG, comes installed on all Ubuntu systems. the sed expression strips out strips out spaces and tabs (represented by \s). The software is used to automatically generate new passwords for whatever use you feel like putting it to. To get a larger selection, pass more bytes to head, and to get longer password result strings, modify -bytes in strings (which gives a minimum length). I suspect your use case if different, but this kind of thing is useful for shared secret keys, and other kinds of passwords that you don't type in very often. The results are more hideous even than apg or pwgen (even with the -s option set), but this is more fun: head -c 8192 /dev/urandom | strings -bytes 8 | sed 's/\s//'
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