Configuring Whether First-Time Authentication Is Supported - 3Com 4510G Configuration Manual

To do...
Enter system view
Specify a
source IP
address or
interface for
the SSH
client

Configuring Whether First-time Authentication is Supported

When the device connects to the SSH server as an SSH client, you can configure whether the device
supports first-time authentication.
With first-time authentication, when an SSH client not configured with the server host public key
accesses the server for the first time, the user can continue accessing the server, and save the
host public key on the client. When accessing the server again, the client will use the saved server
host public key to authenticate the server.
Without first-time authentication, a client not configured with the server host public key will deny to
access the server. To access the server, a user must configure in advance the server host public
key locally and specify the public key name for authentication.
Enable the device to support first-time authentication
Follow these steps to enable the device to support first-time authentication:
To do...
Enter system view
Enable the device to support
first-time authentication
Disable first-time authentication
For successful authentication of an SSH client not supporting first-time authentication, the server host
public key must be configured on the client and the public key name must be specified.
Follow these steps to disable first-time authentication:
To do...
Enter system view
Disable first-time
authentication support
system-view
Specify a source
ssh client source { ip ip-address |
IPv4 address or
interface interface-type
interface for the
interface-number }
SSH client
Specify a source
ssh client ipv6 source { ipv6
IPv6 address or
ipv6-address | interface interface-type
interface for the
interface-number }
SSH client
Use the command...
system-view
ssh client first-time
enable
Use the command...
system-view
undo ssh client first-time
Use the command...
—
Optional
By default, first-time authentication
is supported on a client.
8-10
Remarks
—
Required
By default, the
address of the
interface decided
by the routing is
used to access
the SSH server
Remarks
Remarks
—
Optional
By default, first-time
authentication is supported on
a client.