openssh/ssh-add.1
Damien Miller e247cc402b - Remove references to SSLeay.
- Big OpenBSD CVS update
  - markus@cvs.openbsd.org
    [clientloop.c]
    - typo
    [session.c]
    - update proctitle on pty alloc/dealloc, e.g. w/ windows client
    [session.c]
    - update proctitle for proto 1, too
    [channels.h nchan.c serverloop.c session.c sshd.c]
    - use c-style comments
  - deraadt@cvs.openbsd.org
    [scp.c]
    - more atomicio
  - markus@cvs.openbsd.org
    [channels.c]
    - set O_NONBLOCK
    [ssh.1]
    - update AUTHOR
    [readconf.c ssh-keygen.c ssh.h]
    - default DSA key file ~/.ssh/id_dsa
    [clientloop.c]
    - typo, rm verbose debug
  - deraadt@cvs.openbsd.org
    [ssh-keygen.1]
    - document DSA use of ssh-keygen
    [sshd.8]
    - a start at describing what i understand of the DSA side
    [ssh-keygen.1]
    - document -X and -x
    [ssh-keygen.c]
    - simplify usage
  - markus@cvs.openbsd.org
    [sshd.8]
    - there is no rhosts_dsa
    [ssh-keygen.1]
    - document -y, update -X,-x
    [nchan.c]
    - fix close for non-open ssh1 channels
    [servconf.c servconf.h ssh.h sshd.8 sshd.c ]
    - s/DsaKey/HostDSAKey/, document option
    [sshconnect2.c]
    - respect number_of_password_prompts
    [channels.c channels.h servconf.c servconf.h session.c sshd.8]
    - GatewayPorts for sshd, ok deraadt@
    [ssh-add.1 ssh-agent.1 ssh.1]
    - more doc on: DSA, id_dsa, known_hosts2, authorized_keys2
    [ssh.1]
    - more info on proto 2
    [sshd.8]
    - sync AUTHOR w/ ssh.1
    [key.c key.h sshconnect.c]
    - print key type when talking about host keys
    [packet.c]
    - clear padding in ssh2
    [dsa.c key.c radix.c ssh.h sshconnect1.c uuencode.c uuencode.h]
    - replace broken uuencode w/ libc b64_ntop
    [auth2.c]
    - log failure before sending the reply
    [key.c radix.c uuencode.c]
    - remote trailing comments before calling __b64_pton
    [auth2.c readconf.c readconf.h servconf.c servconf.h ssh.1]
    [sshconnect2.c sshd.8]
    - add DSAAuthetication option to ssh/sshd, document SSH2 in sshd.8
 - Bring in b64_ntop and b64_pton from OpenBSD libc (bsd-base64.[ch])
2000-05-07 12:03:14 +10:00

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3.0 KiB
Groff

.\" -*- nroff -*-
.\"
.\" ssh-add.1
.\"
.\" 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
.\"
.\" $Id: ssh-add.1,v 1.13 2000/05/07 02:03:18 damien Exp $
.\"
.Dd September 25, 1999
.Dt SSH-ADD 1
.Os
.Sh NAME
.Nm ssh-add
.Nd adds RSA identities for the authentication agent
.Sh SYNOPSIS
.Nm ssh-add
.Op Fl lLdD
.Op Ar
.Sh DESCRIPTION
.Nm
adds RSA identities to the authentication agent,
.Xr ssh-agent 1 .
When run without arguments, it adds the file
.Pa $HOME/.ssh/identity .
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.
.Pp
The authentication agent must be running and must be an ancestor of
the current process for
.Nm
to work.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl l
Lists fingerprints of all identities currently represented by the agent.
.It Fl L
Lists public key parameters of all identities currently represented by the agent.
.It Fl d
Instead of adding the identity, removes the identity from the agent.
.It Fl D
Deletes all identities from the agent.
.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.
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
.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
.Nm
does not have a terminal associated with it but
.Ev DISPLAY
and
.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
.Nm
from a
.Pa .Xsession
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 (i.e., patents)
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
.Sh SEE ALSO
.Xr ssh 1 ,
.Xr ssh-agent 1 ,
.Xr ssh-keygen 1 ,
.Xr sshd 8 ,