-.\" -*- nroff -*-
+.\" $OpenBSD: ssh-add.1,v 1.30 2002/02/04 20:41:16 stevesk Exp $
.\"
-.\" ssh-add.1
+.\" -*- nroff -*-
.\"
.\" Author: Tatu Ylonen <ylo@cs.hut.fi>
-.\"
.\" Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
.\" All rights reserved
.\"
-.\" Created: Sat Apr 22 23:55:14 1995 ylo
+.\" As far as I am concerned, the code I have written for this software
+.\" can be used freely for any purpose. Any derived versions of this
+.\" software must be clearly marked as such, and if the derived work is
+.\" incompatible with the protocol description in the RFC file, it must be
+.\" called by a name other than "ssh" or "Secure Shell".
+.\"
+.\"
+.\" Copyright (c) 1999,2000 Markus Friedl. All rights reserved.
+.\" Copyright (c) 1999 Aaron Campbell. All rights reserved.
+.\" Copyright (c) 1999 Theo de Raadt. All rights reserved.
.\"
-.\" $Id$
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd September 25, 1999
.Dt SSH-ADD 1
.Os
.Sh NAME
.Nm ssh-add
-.Nd adds identities for the authentication agent
+.Nd adds RSA or DSA identities to the authentication agent
.Sh SYNOPSIS
.Nm ssh-add
.Op Fl lLdD
.Op Ar
-.Sh DESCRIPTION
+.Nm ssh-add
+.Fl s Ar reader
+.Nm ssh-add
+.Fl e Ar reader
+.Sh DESCRIPTION
.Nm
-adds identities to the authentication agent,
+adds RSA or DSA identities to the authentication agent,
.Xr ssh-agent 1 .
-When run without arguments, it adds the file
+When run without arguments, it adds the files
+.Pa $HOME/.ssh/id_rsa ,
+.Pa $HOME/.ssh/id_dsa
+and
.Pa $HOME/.ssh/identity .
-Alternative file names can be given on the
-command line. If any file requires a passphrase,
+Alternative file names can be given on the command line.
+If any file requires a passphrase,
.Nm
-asks for the passphrase from the user.
-The Passphrase it is read from the user's tty.
+asks for the passphrase from the user.
+The passphrase is read from the user's tty.
+.Nm
+retries the last passphrase if multiple identity files are given.
.Pp
The authentication agent must be running and must be an ancestor of
the current process for
Instead of adding the identity, removes the identity from the agent.
.It Fl D
Deletes all identities from the agent.
+.It Fl s Ar reader
+Add key in smartcard
+.Ar reader .
+.It Fl e Ar reader
+Remove key in smartcard
+.Ar reader .
.El
.Sh FILES
.Bl -tag -width Ds
.It Pa $HOME/.ssh/identity
-Contains the RSA authentication identity of the user. This file
-should not be readable by anyone but the user.
+Contains the protocol version 1 RSA authentication identity of the user.
+.It Pa $HOME/.ssh/id_dsa
+Contains the protocol version 2 DSA authentication identity of the user.
+.It Pa $HOME/.ssh/id_rsa
+Contains the protocol version 2 RSA authentication identity of the user.
+.El
+.Pp
+Identity files should not be readable by anyone but the user.
Note that
.Nm
-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
-.Nm
-when no other files have been specified.
-.Pp
+ignores identity files if they are accessible by others.
.Sh ENVIRONMENT
.Bl -tag -width Ds
.It Ev "DISPLAY" and "SSH_ASKPASS"
If
.Nm
needs a passphrase, it will read the passphrase from the current
-terminal if it was run from a terminal. If
+terminal if it was run from a terminal.
+If
.Nm
does not have a terminal associated with it but
.Ev DISPLAY
.Ev SSH_ASKPASS
are set, it will execute the program specified by
.Ev SSH_ASKPASS
-and open an X11 window to read the passphrase. This is particularly
-useful when calling
+and open an X11 window to read the passphrase.
+This is particularly useful when calling
.Nm
from a
.Pa .Xsession
-or related script. (Note that on some machines it
+or related script.
+(Note that on some machines it
may be necessary to redirect the input from
.Pa /dev/null
to make this work.)
-.Sh AUTHOR
-Tatu Ylonen <ylo@cs.hut.fi>
-.Pp
-OpenSSH
-is a derivative of the original (free) ssh 1.2.12 release, but with bugs
-removed and newer features re-added. Rapidly after the 1.2.12 release,
-newer versions bore successively more restrictive licenses. This version
-of OpenSSH
-.Bl -bullet
-.It
-has all components of a restrictive nature (ie. patents, see
-.Xr ssl 8 )
-directly removed from the source code; any licensed or patented components
-are chosen from
-external libraries.
-.It
-has been updated to support ssh protocol 1.5.
-.It
-contains added support for
-.Xr kerberos 8
-authentication and ticket passing.
-.It
-supports one-time password authentication with
-.Xr skey 1 .
.El
-.Pp
-The libraries described in
-.Xr ssl 8
-are required for proper operation.
+.Sh DIAGNOSTICS
+Exit status is 0 on success, 1 if the specified command fails,
+and 2 if
+.Nm
+is unable to contact the authentication agent.
+.Sh 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.
.Sh SEE ALSO
.Xr ssh 1 ,
.Xr ssh-agent 1 ,
.Xr ssh-keygen 1 ,
-.Xr sshd 8 ,
-.Xr ssl 8
+.Xr sshd 8
andersk / openssh.git / blobdiff