ssh-keysign (8)
Leading comments
$OpenBSD: ssh-keysign.8,v 1.15 2016/02/17 07:38:19 jmc Exp $ Copyright (c) 2002 Markus Friedl. All rights reserved. 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 ...
NAME
ssh-keysign - ssh helper program for host-based authenticationSYNOPSIS
groff Fl m Ns Cm doc Ar
DESCRIPTION
groff Fl m Ns Cm doc Ar is used by ssh(1) to access the local host keys and generate the digital signature required during host-based authentication.groff Fl m Ns Cm doc Ar is disabled by default and can only be enabled in the global client configuration file /etc/ssh/ssh_config by setting EnableSSHKeysign to ``yes''
groff Fl m Ns Cm doc Ar is not intended to be invoked by the user, but from ssh(1). See ssh(1) and sshd(8) for more information about host-based authentication.
FILES
- /etc/ssh/ssh_config
- Controls whether
groff Fl m Ns Cm doc Ar
is enabled.
- /etc/ssh/ssh_host_dsa_key
- /etc/ssh/ssh_host_ecdsa_key
- /etc/ssh/ssh_host_ed25519_key
- /etc/ssh/ssh_host_rsa_key
- /etc/ssh/ssh_host_ecdsa_key
- These files contain the private parts of the host keys used to
generate the digital signature.
They should be owned by root, readable only by root, and not
accessible to others.
Since they are readable only by root,
groff Fl m Ns Cm doc Ar
must be set-uid root if host-based authentication is used.
- /etc/ssh/ssh_host_dsa_key-cert.pub
- /etc/ssh/ssh_host_ecdsa_key-cert.pub
- /etc/ssh/ssh_host_ed25519_key-cert.pub
- /etc/ssh/ssh_host_rsa_key-cert.pub
- /etc/ssh/ssh_host_ecdsa_key-cert.pub
- If these files exist they are assumed to contain public certificate information corresponding with the private keys above.