Sun Microsystems Netra 1290, Руководство администратора

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92 Netra 1290 Server System Administration Guide • May 2006
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On the SSH client:
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On the SC console:
Changing SSH Host Keys
It is good security practice for well-managed machines to get new host keys
periodically. If you suspect that the host key might be compromised, you can use the
ssh-keygen
command to regenerate system host keys.
Host keys, once generated, can only be replaced and not deleted without resorting to
the
setdefaults
command. For newly generated host keys to be activated, the SSH
server must be restarted either by running the
restartssh
command or through a
reboot. For further information on the
ssh-keygen
and
restartssh
commands
(with examples), see the Sun Fire Entry-Level Midrange System Controller Command
Reference Manual , 819-1268.
Note – You can also use the
ssh-keygen
command to display the host key
fingerprint on the SC.
Additional Security Considerations
Special Key Sequences for RTOS Shell Access
Special key sequences can be issued to the SC, over its serial connection, while it is
booting. These key sequences have special capabilities if entered at the serial port
within the first 30 seconds after an SC reboot.
Connection to SCHOST closed by remote host.
[0x89d1e0] sshdSessionServerCreate: no server registered
for showboards
[0x89d1e0] sshd: Failed to create sshdSession