[Sierra] macos Sierra に更新してから、毎回パスフレーズを聞かれてくることに対する対策 [ssh]MacSSHSierra AddKeysToAgent man ssh_config から Specifies whether keys should be automatically added to a running ssh-agent(1). If this option is set to 'yes' and a key is loaded from a file, the key and its passphrase are added to the agent with the default lifetime, as if by ssh-add(1). If this option is set to `ask', ssh will require conf