User Account Passwords
For NREL’s high-performance computing (HPC) systems, learn about user account password requirements and how to set up, log in, and change passwords.
Password Requirements
Your NREL HPC password must be a minimum of 14 characters long.
Per federal guidelines, there are no longer any minimum character class/complexity requirements. Avoid common dictionary words, usernames, or other personal information.
Password Processes
Logging In the First Time
After you request an HPC user account, you'll receive a temporary password. Set your password using our Password Management tool.
If you run into trouble, contact us. Please include your username and a phone number where we can reach you.
Changing Passwords
If you know your current password, we recommend using our Password Management tool to set a new password. You may also use the passwd command from a secure shell (SSH) session if you prefer.
Forgotten Passwords
If you have forgotten your current password, please contact us and include your user name and phone number. We'll then reset your password.
Frequently Asked Questions
I've been using SSH keys. Do I need to reset my password?
Yes. Even if you have configured SSH keys to log into HPC systems, you still need
to maintain a password for your account to remain active. You also must authenticate with your password at least once every sixty days, either via a passworded SSH login,
a Lex web interface login, or via the kinit command on a login node.
Use the Password Management tool or passwd command to set your password.
How often must I reset my password?
Passwords do not expire. You may change your password no more than once per day.
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