View Source: ssh-add(1) - Waikato Linux Users Group

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__NAME__


ssh-add - adds RSA or DSA identities to the authentication
agent
__SYNOPSIS__


ssh-add [[-lLdD] [[file ...]


ssh-add -s reader


ssh-add -e reader
__DESCRIPTION__


ssh-add adds RSA or DSA identities to the authentication
agent, ssh-agent(1). When run without arguments, it
adds the file $HOME/.ssh/identity. 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 must be an ancestor of the current process for ssh-add to work.


The options are as follows:
       -l   Lists fingerprints of all identities currently repre-sented by the agent.


-LLists public key parameters of  all  identities  cur-rently represented by the agent.-dInstead  of adding the identity, removes the identityfrom the agent.-DDeletes all identities from the agent.-s readerAdd key in smartcard reader.-e readerRemove key in smartcard reader.__FILES__
       $HOME/.ssh/identity


Contains the protocol version 1 RSA authentication identity
of the user. This file should not be read- able by anyone
but the user. Note that ssh-add ignores this file if it is
accessible by others. It is possible to specify a passphrase
when generating the key; that passphrase will be used to
encrypt the private part of this file. This is the default
file added by ssh-add when no other files have been speci-
fied.


$HOME/.ssh/id_dsa
Contains the protocol version 2 DSA authentication identity
of the user.


$HOME/.ssh/id_rsa
Contains the protocol version 2 RSA authentication identity
of the user.


__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.)


__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 ver-
sions 1.5 and 2.0.
__SEE ALSO__


ssh(1), ssh-agent(1),
ssh-keygen(1), sshd(8)


BSD September 25, 1999 1
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Last edited on Monday, June 3, 2002 11:56:09 pm by "perry"

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