OpenNebula

Provide configuration options for the following:

• Prevent reuse of user identifiers
• Disable / lock inactive user accounts. Manual lock feature required as an option
• Enable Passwords complexity
  - Require a minimum length of at least seven characters.
  - Contain both numeric and alphabetic characters.
  - Alternatively, the passwords/ passphrases must have complexity and strength at least equivalent to the parameters specified above.

• Require a configurable number of changed characters when new passwords are created
• Passwords maximum lifetime restriction
  - Ex: Change user passwords/passphrases at least once every 90 days.
• Passwords minimum lifetime restriction
• Passwords history enforcement
  - Do not allow an individual to submit a new password/passphrase that is the same as any of the last four passwords/passphrases he or she has used.
• Automatic disconnect of sessions after a specified period of inactivity
• Limit the number of incorrect password attempts by automatically locking out accounts. Manual unlock feature required as an option
• View current users' sessions. Concurrent sessions control management