CentOS to quickly set up ssh login without a password

First, make sure you can ping

Run the following command,

Master login slave

Run the following command on the master:

2.4 check the local sshd configuration file (root)

 

$ Vi/etc/ssh/sshd_config

Find the following content and remove the annotator "#"

RSAAuthenticationyes

 

PubkeyAuthenticationyes

 

AuthorizedKeysFile. ssh/authorized_keys

 

2.5 If the configuration file is modified, restart the sshd service (root)

$ Vi/sbin/service sshd restart

 

If not modified, skip the preceding steps,

Continue below

2.7 create a public/private key for a certificate

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

$ Cat ~ /. Ssh/id_dsa.pub> ~ /. Ssh/authorized_keys

2.8 test logging on to ssh localhost

$ Ssh localhost

Under normal circumstances, the login is successful, and some successful login information is displayed,

 

Finally:

$ Cat ~ /. Ssh/id_dsa.pub | ssh remote user name @ Remote Server ip 'cat-> ~ /. Ssh/authorized_keys'