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id_rsa’ are too open.


I get the following error and I can no longer connect to SSH. The problem was solved by restricting the privileges of the private key.

Permissions 0777 for '/root/.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: /root/.ssh/id_rsa

$ chmod 600 /root/.ssh/id_rsa

Reference: Error permission denied through ssh

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