ssh -i

• https://linux.die.net/man/1/ssh

-i identity_file
Selects a file from which the identity (private key) for RSA or DSA authentication is read. The default is 
~/.ssh/identity for protocol version 1, and ~/.ssh/id_rsa and ~/.ssh/id_dsa for protocol version 2. Identity 
files may also be specified on a per-host basis in the configuration file. It is possible to have multiple -i 
options (and multiple identities specified in configuration files)

See also

• OpenSSH: ssh, ssh -O, -i, -t, -T, -N, -V, /etc/ssh/ssh_config, ssh --help