Ssh Settings - D-Link DGS-3700-12 User Manual

SSH
SSH is an abbreviation of Secure Shell, which is a program allowing secure remote login and secure network services
over an insecure network. It allows a secure login to remote host computers, a safe method of executing commands
on a remote end node, and will provide secure encrypted and authenticated communication between two non-trusted
hosts. SSH, with its array of unmatched security features is an essential tool in today's networking environment. It is a
powerful guardian against numerous existing security hazards that now threaten network communications.
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:
1. Create a user account with admin-level access using the User Accounts window in the Configuration folder.
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.
2. 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 Lists window. There are
three choices as to the method SSH will use to authorize the user, which are Host Based, Password and
Public Key.
3. 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 Authmode and Algorithm Settings window.
4. 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

The following window is used to configure and view settings for the SSH server.
To view this window, click Security > SSH > SSH Settings, as shown below:
To configure the SSH server on the Switch, modify the following parameters and click Apply:
Parameter
SSH Server State
Max Session (1-8)
Connection
DGS-3700-12/DGS-3700-12G Series Layer 2 Gigabit Ethernet User Manual
NOTE: Enabling the SSL command will disable the web-based switch management.
To log on to the Switch again, the header of the URL must begin with https://.
Entering anything else into the address field of the web browser will result in an error
and no authentication will be granted.
Figure 8- 55 SSH Settings window
Description
Enable or disable SSH on the Switch. The default is Disabled.
Enter a value between 1 and 8 to set the number of users that may simultaneously access the
Switch. The default setting is 8.
Allows the user to set the connection timeout. The use may set a time between 120 and 600
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