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adds private key identities to the authentication agent, When run without
arguments, it adds the files and After loading a private key, will
try to load corresponding certificate information from the filename obtained
by appending to the name of the private key file. Alternative file names
can be given on the command line. If any file requires a passphrase, asks
for the passphrase from the user. The passphrase is read from the user’s
tty. retries the last passphrase if multiple identity files are given.
The authentication agent must be running and the environment variable
must contain the name of its socket for to work. The options are as follows:
Indicates that added identities should be subject to confirmation before
being used for authentication. Confirmation is performed by the program
mentioned below. Successful confirmation is signaled by a zero exit status
from the program, rather than text entered into the requester. Deletes
all identities from the agent. Instead of adding identities, removes identities
from the agent. If has been run without arguments, the keys for the default
identities and their corresponding certificates will be removed. Otherwise,
the argument list will be interpreted as a list of paths to public key
files to specify keys and certificates to be removed from the agent. If
no public key is found at a given path, will append and retry. Remove
keys provided by the PKCS#11 shared library When loading keys into or
deleting keys from the agent, process plain private keys only and skip
certificates. Lists public key parameters of all identities currently represented
by the agent. Lists fingerprints of all identities currently represented
by the agent. Add keys provided by the PKCS#11 shared library Set a maximum
lifetime when adding identities to an agent. The lifetime may be specified
in seconds or in a time format specified in Unlock the agent. Lock the
agent with a password.
If needs a passphrase, it will read
the passphrase from the current terminal if it was run from a terminal.
If does not have a terminal associated with it but and are set, it will
execute the program specified by and open an X11 window to read the passphrase.
This is particularly useful when calling from a or related script. (Note
that on some machines it may be necessary to redirect the input from to
make this work.) Identifies the path of a socket used to communicate with
the agent.
Contains the protocol version 1 RSA authentication identity
of the user. Contains the protocol version 2 DSA authentication identity
of the user. Contains the protocol version 2 ECDSA authentication identity
of the user. Contains the protocol version 2 ED25519 authentication identity
of the user. Contains the protocol version 2 RSA authentication identity
of the user. Identity files should not be readable by anyone but the user.
Note that ignores identity files if they are accessible by others.
Exit status is 0 on success, 1 if the specified command fails, and
2 if is unable to contact the authentication agent.
OpenSSH
is a derivative of the original and free ssh 1.2.12 release by Tatu Ylonen.
Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo de Raadt and
Dug Song removed many bugs, re-added newer features and created OpenSSH.
Markus Friedl contributed the support for SSH protocol versions 1.5 and
2.0.
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