Alcatel-Lucent 7210 SAS E OS System Management Manual page 88

Login, Telnet, SSH and FTP Commands
preserve-key
Syntax [no] preserve-key
Context config>system>security
Description This command specifies the persistence of the SSH server host key. When enabled, the host key will
be saved by the server and restored following a system reboot. This command can only be enabled or
disabled when the SSH server is disabled. This setting cannot be changed while the SSH server is
running.
The no form of the command specifies that the host key will be held in memory by the SSH server
and is not restored following a system reboot.
Default
no preserve-key
server-shutdown
Syntax [no] server-shutdown
Context config>system>security
Description
This command enables the SSH servers running on the system.
Default
At system startup, only the SSH server is enabled.
version
Syntax version ssh-version
no version
Context config>system>security>ssh
Description
Specifies the SSH protocol version that will be supported by the SSH server.
Parameters
ssh-version — Specifies the SSH version.
Default
2
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Values
1 — Specifies that the SSH server will only accept connections from clients that
support SSH protocol version 1
2 — Specifies that the SSH server will accept connections from clients supporting
either SSH protocol version 2
1-2 — Specifies that the SSH server will accept connections from clients support-
ing either SSH protocol version 1, or SSH protocol version 2 or both.
7210 SAS-E OS System Management Guide