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54 lines
1.8 KiB
Plaintext
54 lines
1.8 KiB
Plaintext
SSH-KEYSIGN(8) System Manager's Manual SSH-KEYSIGN(8)
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NAME
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ssh-keysign M-bM-^@M-^S ssh helper program for host-based authentication
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SYNOPSIS
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ssh-keysign
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DESCRIPTION
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ssh-keysign is used by ssh(1) to access the local host keys and generate
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the digital signature required during host-based authentication with SSH
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protocol version 2.
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ssh-keysign is disabled by default and can only be enabled in the global
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client configuration file /etc/ssh/ssh_config by setting EnableSSHKeysign
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to M-bM-^@M-^\yesM-bM-^@M-^].
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ssh-keysign is not intended to be invoked by the user, but from ssh(1).
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See ssh(1) and sshd(8) for more information about host-based
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authentication.
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FILES
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/etc/ssh/ssh_config
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Controls whether ssh-keysign is enabled.
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/etc/ssh/ssh_host_dsa_key
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/etc/ssh/ssh_host_ecdsa_key
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/etc/ssh/ssh_host_ed25519_key
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/etc/ssh/ssh_host_rsa_key
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These files contain the private parts of the host keys used to
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generate the digital signature. They should be owned by root,
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readable only by root, and not accessible to others. Since they
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are readable only by root, ssh-keysign must be set-uid root if
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host-based authentication is used.
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/etc/ssh/ssh_host_dsa_key-cert.pub
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/etc/ssh/ssh_host_ecdsa_key-cert.pub
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/etc/ssh/ssh_host_ed25519_key-cert.pub
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/etc/ssh/ssh_host_rsa_key-cert.pub
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If these files exist they are assumed to contain public
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certificate information corresponding with the private keys
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above.
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SEE ALSO
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ssh(1), ssh-keygen(1), ssh_config(5), sshd(8)
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HISTORY
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ssh-keysign first appeared in OpenBSD 3.2.
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AUTHORS
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Markus Friedl <markus@openbsd.org>
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OpenBSD 5.8 December 7, 2013 OpenBSD 5.8
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