ssh without password

ssh-without-password.sh

# Generate private/public key
> ssh-keygen -t ecdsa -b 521 
> ssh-keygen -t ed25519
> ssh-keygen -t ecdsa -b 521 -f ./certs -m PEM

# Add private key
> ssh-add -K ~/.ssh/identity_file 

# Copy public key to remote host
> ssh-copy-id -i ~/.ssh/identity_file username@remote_host_ip
# > insert the remote host password

# Now try to connect with
> ssh username@remote_host_ip


# Other notes
Put the public key in .ssh/authorized_keys
Change the permissions of .ssh to 700
Change the permissions of .ssh/authorized_keys to 640