If you are getting this error when you try to SSH in to your computer, then you probably reset the permissions on your hidden .ssh directory in your user folder, and now your keys are not secure. It is important that these files not be writable by everyone with a login to your computer, so openssh will give you an error if you try to use them.
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: UNPROTECTED PRIVATE KEY FILE! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ Permissions 0744 for '/home/geek/.ssh/id_rsa' are too open. It is recommended that your private key files are NOT accessible by others. This private key will be ignored. bad permissions: ignore key: /home/geek/.ssh/id_rsa The FIX is easy, just enter... sudo chmod 600 ~/.ssh/[YOUR FILE NAME].pem And you're all set.