124 lines
5.0 KiB
Plaintext
124 lines
5.0 KiB
Plaintext
SSH-ADD(1) General Commands Manual SSH-ADD(1)
|
|
|
|
NAME
|
|
ssh-add - adds private key identities to the authentication agent
|
|
|
|
SYNOPSIS
|
|
ssh-add [-cDdkLlXx] [-t life] [file ...]
|
|
ssh-add -s pkcs11
|
|
ssh-add -e pkcs11
|
|
|
|
DESCRIPTION
|
|
ssh-add adds private key identities to the authentication agent,
|
|
ssh-agent(1). When run without arguments, it adds the files
|
|
~/.ssh/id_rsa, ~/.ssh/id_dsa, ~/.ssh/id_ecdsa, ~/.ssh/id_ed25519 and
|
|
~/.ssh/identity. After loading a private key, ssh-add will try to load
|
|
corresponding certificate information from the filename obtained by
|
|
appending -cert.pub to the name of the private key file. Alternative
|
|
file names can be given on the command line.
|
|
|
|
If any file requires a passphrase, ssh-add asks for the passphrase from
|
|
the user. The passphrase is read from the user's tty. ssh-add retries
|
|
the last passphrase if multiple identity files are given.
|
|
|
|
The authentication agent must be running and the SSH_AUTH_SOCK
|
|
environment variable must contain the name of its socket for ssh-add to
|
|
work.
|
|
|
|
The options are as follows:
|
|
|
|
-c Indicates that added identities should be subject to confirmation
|
|
before being used for authentication. Confirmation is performed
|
|
by the SSH_ASKPASS program mentioned below. Successful
|
|
confirmation is signaled by a zero exit status from the
|
|
SSH_ASKPASS program, rather than text entered into the requester.
|
|
|
|
-D Deletes all identities from the agent.
|
|
|
|
-d Instead of adding identities, removes identities from the agent.
|
|
If ssh-add 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, ssh-add will append .pub and retry.
|
|
|
|
-e pkcs11
|
|
Remove keys provided by the PKCS#11 shared library pkcs11.
|
|
|
|
-k When loading keys into or deleting keys from the agent, process
|
|
plain private keys only and skip certificates.
|
|
|
|
-L Lists public key parameters of all identities currently
|
|
represented by the agent.
|
|
|
|
-l Lists fingerprints of all identities currently represented by the
|
|
agent.
|
|
|
|
-s pkcs11
|
|
Add keys provided by the PKCS#11 shared library pkcs11.
|
|
|
|
-t life
|
|
Set a maximum lifetime when adding identities to an agent. The
|
|
lifetime may be specified in seconds or in a time format
|
|
specified in sshd_config(5).
|
|
|
|
-X Unlock the agent.
|
|
|
|
-x Lock the agent with a password.
|
|
|
|
ENVIRONMENT
|
|
DISPLAY and SSH_ASKPASS
|
|
If ssh-add needs a passphrase, it will read the passphrase from
|
|
the current terminal if it was run from a terminal. If ssh-add
|
|
does not have a terminal associated with it but DISPLAY and
|
|
SSH_ASKPASS are set, it will execute the program specified by
|
|
SSH_ASKPASS and open an X11 window to read the passphrase. This
|
|
is particularly useful when calling ssh-add from a .xsession or
|
|
related script. (Note that on some machines it may be necessary
|
|
to redirect the input from /dev/null to make this work.)
|
|
|
|
SSH_AUTH_SOCK
|
|
Identifies the path of a UNIX-domain socket used to communicate
|
|
with the agent.
|
|
|
|
FILES
|
|
~/.ssh/identity
|
|
Contains the protocol version 1 RSA authentication identity of
|
|
the user.
|
|
|
|
~/.ssh/id_dsa
|
|
Contains the protocol version 2 DSA authentication identity of
|
|
the user.
|
|
|
|
~/.ssh/id_ecdsa
|
|
Contains the protocol version 2 ECDSA authentication identity of
|
|
the user.
|
|
|
|
~/.ssh/id_ed25519
|
|
Contains the protocol version 2 ED25519 authentication identity
|
|
of the user.
|
|
|
|
~/.ssh/id_rsa
|
|
Contains the protocol version 2 RSA authentication identity of
|
|
the user.
|
|
|
|
Identity files should not be readable by anyone but the user. Note that
|
|
ssh-add ignores identity files if they are accessible by others.
|
|
|
|
EXIT STATUS
|
|
Exit status is 0 on success, 1 if the specified command fails, and 2 if
|
|
ssh-add is unable to contact the authentication agent.
|
|
|
|
SEE ALSO
|
|
ssh(1), ssh-agent(1), ssh-keygen(1), sshd(8)
|
|
|
|
AUTHORS
|
|
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.
|
|
|
|
OpenBSD 5.6 December 7, 2013 OpenBSD 5.6
|