System information

DGS-3000 Series Layer 2 Managed Gigabit Switch Web UI Reference Guide
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The steps required to use the SSH protocol for secure communication between a remote PC (the SSH client) and
the Switch (the SSH server) are as follows:
 Create a user account with admin-level access using the User Accounts window. This is identical to
creating any other admin-level User Account on the Switch, including specifying a password. This
password is used to logon to the Switch, once a secure communication path has been established
using the SSH protocol.
 Configure the User Account to use a specified authorization method to identify users that are allowed to
establish SSH connections with the Switch using the SSH User Authentication List window. There
are three choices as to the method SSH will use to authorize the user, which are Host Based,
Password, and Public Key.
 Configure the encryption algorithm that SSH will use to encrypt and decrypt messages sent between
the SSH client and the SSH server, using the SSH Authentication Method and Algorithm Settings
window.
 Finally, enable SSH on the Switch using the SSH Settings window.
After completing the preceding steps, a SSH Client on a remote PC can be configured to manage the Switch using
a secure, in band connection.
SSH Settings
Users can configure and view settings for the SSH server.
To view this window, click Security > SSH > SSH Settings as shown below:
Figure 8-72 SSH Settings window
The fields that can be configured are described below:
Parameter Description
SSH Server State
Use the radio buttons to enable or disable SSH on the Switch. The default is
Disabled.
Max. Session (1-8) Enter a value between 1 and 8 to set the number of users that may simultaneously
access the Switch. The default setting is 8.
Connection Timeout
(120-600)
Allows the user to set the connection timeout. The user may set a time between 120
and 600 seconds. The default setting is 120 seconds.
Authfail Attempts (2-
20)
Allows the Administrator to set the maximum number of attempts that a user may try
to log on to the SSH Server utilizing the SSH authentication. After the maximum
number of attempts has been exceeded, the Switch will be disconnected and the user
must reconnect to the Switch to attempt another login. The number of maximum
attempts may be set between 2 and 20. The default setting is 2.
Rekey Timeout
This field is used to set the time period that the Switch will change the security shell
encryptions by using the drop-down menu. The available options are Never, 10 min,
30 min, and 60 min. The default setting is Never.
TCP Port Number (1-
65535)
Here the user can enter the TCP Port Number used for SSH. The default value is 22.