Shulou(Shulou.com)06/03 Report--

At the beginning of contact, not very familiar with, make a small record, correct later

Generate public and private keys

Ssh-keygen-t dsa-P''- f ~ / .ssh/id_dsa

Import the public key into the authorized_keys file

Cat ~ / .ssh/id_dsa.pub > > ~ / .ssh/authorized_keys

Normally, ssh will not need to use a password when logging in at this time.

If prompted: Permission denied, please try again

Modify ssh configuration, path / etc/ssh/sshd_config

PermitRootLogin without-password

Change it to PermitRootLogin yes

If you still need to use a password during ssh after the above configuration, there should be a problem with the public key of the current machine. You can send the public key of the target machine to the current machine again and import it into the authorized_keys file again.

For example, master can log in to slave without a password, but slave cannot log in to master, indicating that there is a problem with the public key of slave. In this case, send the authorized_keys of master to master.

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