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DISCLAIMER if a person approaches just after the user walks away (tailgating), sudo will not require a password.

To force behavior of sudo to require a password:

  1. sudo visudo
  2. add Defaults env_reset,timestamp_timeout=0

Or lock your session when you leave like a good sysadmin ;)

LOL. It was your point, not mine.

Ahh, I see what you saying now, been a while since I wrote the post. :)

I have no idea what I'm doing reading something so old.