version 1.234, 2006/08/21 08:15:57 |
version 1.235, 2007/03/20 15:57:15 |
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.Nm |
.Nm |
(OpenSSH Daemon) is the daemon program for |
(OpenSSH Daemon) is the daemon program for |
.Xr ssh 1 . |
.Xr ssh 1 . |
Together these programs replace rlogin and rsh, and |
Together these programs replace |
provide secure encrypted communications between two untrusted hosts |
.Xr rlogin 1 |
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and |
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.Xr rsh 1 , |
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and provide secure encrypted communications between two untrusted hosts |
over an insecure network. |
over an insecure network. |
.Pp |
.Pp |
.Nm |
.Nm |
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When this option is specified, |
When this option is specified, |
.Nm |
.Nm |
will send the output to the standard error instead of the system log. |
will send the output to the standard error instead of the system log. |
.It Fl f Ar configuration_file |
.It Fl f Ar config_file |
Specifies the name of the configuration file. |
Specifies the name of the configuration file. |
The default is |
The default is |
.Pa /etc/ssh/sshd_config . |
.Pa /etc/ssh/sshd_config . |
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but allows host-based authentication without permitting login with |
but allows host-based authentication without permitting login with |
rlogin/rsh. |
rlogin/rsh. |
.Pp |
.Pp |
.It /etc/ssh/ssh_known_hosts |
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Systemwide list of known host keys. |
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This file should be prepared by the |
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system administrator to contain the public host keys of all machines in the |
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organization. |
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The format of this file is described above. |
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This file should be writable only by root/the owner and |
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should be world-readable. |
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.Pp |
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.It /etc/ssh/ssh_host_key |
.It /etc/ssh/ssh_host_key |
.It /etc/ssh/ssh_host_dsa_key |
.It /etc/ssh/ssh_host_dsa_key |
.It /etc/ssh/ssh_host_rsa_key |
.It /etc/ssh/ssh_host_rsa_key |
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These files are created using |
These files are created using |
.Xr ssh-keygen 1 . |
.Xr ssh-keygen 1 . |
.Pp |
.Pp |
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.It /etc/ssh/ssh_known_hosts |
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Systemwide list of known host keys. |
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This file should be prepared by the |
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system administrator to contain the public host keys of all machines in the |
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organization. |
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The format of this file is described above. |
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This file should be writable only by root/the owner and |
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should be world-readable. |
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.Pp |
.It /etc/ssh/sshd_config |
.It /etc/ssh/sshd_config |
Contains configuration data for |
Contains configuration data for |
.Nm sshd . |
.Nm sshd . |
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.Xr ssh-add 1 , |
.Xr ssh-add 1 , |
.Xr ssh-agent 1 , |
.Xr ssh-agent 1 , |
.Xr ssh-keygen 1 , |
.Xr ssh-keygen 1 , |
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.Xr ssh-keyscan 1 , |
.Xr chroot 2 , |
.Xr chroot 2 , |
.Xr hosts_access 5 , |
.Xr hosts_access 5 , |
.Xr login.conf 5 , |
.Xr login.conf 5 , |