「Permissions 0644 for ‘id_rsa.rsa’ are too open」の対策

2014年9月20日

操作：
ssh -l hust_fmliu -i id_rsa.rsa planetlab1.xeno.cl.cam.ac.uk

エラーメッセージ
Permissions 0644 for 'id_rsa.rsa’ are too open.
It is required that your private key files are NOT accessible by others.
This private key will be ignored.
bad permissions: ignore key: id_rsa.rsa
Permission denied (publickey,keyboard-interactive).

 

対策：

chmod 600