how to ssh without password authentication code example

Example 1: ssh paswordless

[tecmint@tecmint ~]$ cat .ssh/id_rsa.pub | ssh [email protected] 'cat >> .ssh/authorized_keys'

[email protected]'s password: [Enter Your Password Here]

Example 2: ssh rembeber password

/home/yourusername/.ssh/id_rsa /home/yourusername/.ssh/id_rsa.pub