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an insecure
network environment. It can encrypt all the transmission data and prevent the
information in a remote management being leaked.
Comprising server and client, SSH has two versions, V1 and V2 which are not compatible with
each other. In the communication, SSH server and client can auto-negotiate the SSH version and
the encryption algorithm. After getting a successful negotiation, the client sends authentication
request to the server for login, and then the two can communicate with each other after successful
authentication. This switch supports SSH server and you can log on to the switch via SSH
connection using SSH client software.
SSH key can be downloaded into the switch. If the key is successfully downloaded, the certificate
authentication will be preferred for SSH access to the switch.
Choose the menu System→Access Seurity→SSH Config to load the following page.
Figure 4-16 SSH Config
The following entries are displayed on this screen:
Global Config
SSH: Select Enable/Disable SSH function.
Protocol V1: Select Enable/Disable SSH V1 to be the supported protocol.
Protocol V2: Select Enable/Disable SSH V2 to be the supported protocol.
Idle Timeout: Specify the idle timeout time. The system will automatically
release the connection when the time is up. The default time is
500 seconds.
Max Connect: Specify the maximum number of the connections to the SSH
server. No new connection will be established when the number of
the connections reaches the maximum number you set. The
default value is 5.
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