After configuring SSH password-free login for CentOS, you are still prompted to enter the password

After configuring SSH password-free login for CentOS, you are still prompted to enter the password

Perform the following three steps to configure SSH password-less logon in CentOS:

1. Generate public and private keys
2. Import the public key to the authentication file and change the permission
3. Test

1. Generate public and private keys

Ssh-keygen-t dsa-p'-f ~ /. Ssh/id_dsa

The default value is ~ /. Generate two files in the ssh directory:
Id_rsa: Private Key
Id_rsa.pub: Public Key

2. Import the public key to the authentication File
2.1 import Local Machine

Cat ~ /. Ssh/id_rsa.pub> ~ /. Ssh/authorized_keys

2.2 import the server for password-free Login

First, copy the authentication file to the server.

Scp ~ /. Ssh/authorized_keys xxx @ host name:/home/xxx/. ssh/

Generally, the above steps are OK, but I still need to enter the password,

Log on to the root user to view the system's log file: $ tail/var/log/secure-n 20

............

Oct 7 10:26:43 MasterServer sshd [2734]: Authentication refused: bad ownership or modes for file/home/hadoship/. ssh/authorized_keys
Oct 7 10:26:48 MasterServer sshd [2734]: Accepted password for hadoworkflow from: 1 port 37456 ssh2
Oct 7 10:26:48 MasterServer sshd [2734]: pam_unix (sshd: session): session opened for user hadoidentified by (uid = 0)
Oct 7 10:36:30 MasterServer sshd [2809]: Accepted password for hadostrap from 192.168.1.241 port 36257 ssh2
Oct 7 10:36:30 MasterServer sshd [2809]: pam_unix (sshd: session): session opened for user hadoidentified by (uid = 0)
Oct 7 10:38:28 MasterServer sshd [2857]: Authentication refused: bad ownership or modes for directory/home/hadoworkflow/. ssh

............

The prompt "/home/hadooper/. ssh" and "/home/hadoys/. ssh/authorized_keys" is incorrect. The modification is as follows:

Chmod 700 ~ /. Ssh
Chmod 600 ~ /. Ssh/authorized_keys

3. Test
Ssh host, the First Login may require yes confirmation, and then you can log on directly.

 

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