Use ssh-kengen to skip password input and directly log on to the remote host.

Log on to the remote host directly through ssh-kengen without entering the password. 1. log on to machine A www.2cto. com2, ssh-keygen-t [rsa | dsa], the key file and private key file id_rsa, id_rsa.pub or id_dsa, id_dsa.pub3 will be generated. copy pub files to machine B...
Log on to the remote host directly through ssh-kengen without entering the password. 1. log on to host A www.2cto.com. 2. log on to ssh-keygen-t [rsa | dsa]. the key file and private key file id_rsa, id_rsa.pub or id_dsa, id_dsa.pub 3. copy the pub file to. ssh directory, and cat id_dsa.pub >> ~ /. Ssh/authorized_keys 4. success 4. log on to the target account of Machine B from Machine A without the password. (run # ssh B _ip directly)