Identity and Authorization Files
~/.ssh/authorized_keys (SSH1, OpenSSH/1)
Uses one public key per line, preceded by options.
Option Meaning command="Unix shell command " Specify a forced command environment="variable=value " Set environment variable from=host_or_ip_address_specification Limit incoming hosts idle-timeout=time Set idle timeout no-agent-forwarding Disable agent forwarding no-port-forwarding Disable port forwarding no-pty Don't allocate TTY
~/.ssh/authorized_keys2 (OpenSSH/2)
Uses one public key per line, preceded by options.
~/.ssh2/authorization (SSH2)
Uses one keyword/value pair per line.
Keyword Meaning Command Unix_command Specify a forced command Key filename.pub Location of public key file PgpPublicKeyFile filename Location of PGP public key file PgpKeyFingerprint fingerprint Select PGP key by fingerprint PgpKeyId id Select PGP key by ID PgpKeyName name Select PGP key by name
~/.ssh2/identification (SSH2)
Uses one keyword/value pair per line.
Keyword Meaning IdKey filename Location of private key file IdPgpKeyFingerprint fingerprint Select PGP key by fingerprint IdPgpKeyId id Select PGP key by ID IdPgpKeyName name Select PGP key by name PgpSecretKeyFile filename Location of PGP private key file