3Com 4800G Series, Руководство по настройке

Страница: 1116 / 1246

1116 C
HAPTER
88: SSH C
ONFIGURATION
Specifying a Source IP
address/Interface for the
SSH client
This configuration task allows you to specify a source IP address or interface for
the client to access the SSH server, improving service manageability.
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 for use
in subsequent authentications.
■
Without first-time authentication, a client not configured with the server host
public key will be denied of access to 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:
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:
Task Remarks
“Specifying a Source IP address/Interface for the SSH client” on page 1116 Optional
“Configuring Whether First-time Authentication is Supported” on page 1116 Optional
“Establishing a Connection Between the SSH Client and the Server” on page 1117 Required
To do…
Use the
command… Remarks
Enter system view system-view -
Specify a source
IP address or
interface for the
SSH client Specify a source IPv4 address or
interface for the SSH client ssh client source
{ ip ip-address |
interface
interface-type
interface-number
}
Required
By default, the
address of the
interface decided by
the routing is used
to access the SSH
server
Specify a source IPv6 address or
interface for the SSH client ssh client ipv6
source
{ ipv6
ipv6-address |
interface
interface-type
interface-number
}
To do… Use the command… Remarks
Enter system view system-view -
Enable the device to support
first-time authentication ssh client first-time enable Optional
By default, first-time
authentication is supported
on a client.