ZyXEL Communications ES-2024 Series, Руководство пользователя, Страница: 224 / 282

Chapter 29 Access Control
ES-2024 Series User’s Guide
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The following table describes the fields in this screen.
29.10 Remote Management
From the Access Control screen, display the Remote Management screen as shown next.
You can specify a group of one or more “trusted computers” from which an administrator may
use a service to manage the Switch. Click
Access Control to return to the Access Control
screen.
Figure 139 Management > Access Control > Remote Management
The following table describes the labels in this screen.
Table 87 Management > Access Control > Service Access Control
LABEL DESCRIPTION
Services Services you may use to access the Switch are listed here.
Active Select this option for the corresponding services that you want to allow to access the
Switch.
Service Port For Telnet, SSH, FTP, HTTP or HTTPS services, you may change the default service
port by typing the new port number in the Server Port field. If you change the default
port number then you will have to let people (who wish to use the service) know the
new port number for that service.
Timeout Type how many minutes (1-255) a management session (via the web configurator) can
be left idle before the session times out. After it times out you have to log in with your
password again. Very long idle timeouts may have security risks.
Apply Click Apply to save your changes to the Switch’s run-time memory. The Switch loses
these changes if it is turned off or loses power, so use the Save link on the top
navigation panel to save your changes to the non-volatile memory when you are done
configuring.
Cancel Click Cancel to begin configuring this screen afresh.
Table 88 Management > Access Control > Remote Management
LABEL DESCRIPTION
Entry This is the client set index number. A “client set” is a group of one or more “trusted
computers” from which an administrator may use a service to manage the Switch.
Active Select this check box to activate this secured client set. Clear the check box if you
wish to temporarily disable the set without deleting it.
Start Address
End Address Configure the IP address range of trusted computers from which you can manage this
Switch.
The Switch checks if the client IP address of a computer requesting a service or
protocol matches the range set here. The Switch immediately disconnects the
session if it does not match.