Dropbear Public Key Authentication

General Discussion
15

From man ssh

 -i identity_file

         Selects a file from which the identity (private key) for public
         key authentication is read.  The default is ~/.ssh/id_dsa,
         ~/.ssh/id_ecdsa, ~/.ssh/id_ecdsa_sk, ~/.ssh/id_ed25519,
         ~/.ssh/id_ed25519_sk and ~/.ssh/id_rsa.  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).  If no certificates have been
         explicitly specified by the CertificateFile directive, ssh will
         also try to load certificate information from the filename ob‐
         tained by appending -cert.pub to identity filenames.

So if your private key is found in there and matches, you’re good to go.

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