Lantronix ETS, Справочное руководство

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Server Configuration Creating Services
4-13
In Figure 4-27, the service rating is non-zero, indicating that the service is available for connections. If the
service rating were zero, the service would not be available. This can happen if the port is not configured
for Dynamic or Remote access, if connections are disabled, or if the service/port is in use. The Show Ports
All command is useful for finding out why a service is unavailable; it shows port access modes, login
statuses, and the services currently being offered.
After setting up a service, you should be able to connect to it locally or from other protocol-compatible
nodes. To connect to service dump_port, use the following command:
Figure 4-28: Connecting to a Service
Note:
Output will be displayed on port 4. If there is a terminal device on port 4, it will
echo keystrokes to the port.
To disconnect from the service, press the Break key to return to the Local> prompt, then type Disconnect.
Your session will be closed and the dump_port service will again be available for connections. Enter the
Show Services command to make sure.
4.6.2 Setting Up a Service With Group Codes
Local ports can be given a list of LAT service groups that they are authorized to use. The access list will
deny the ports access to services that do not belong to any matching authorized groups. For example, you
may wish to limit connections to a printer or to a certain set of ports on a server.
Figure 4-29: Service Configuration Example
In order, the commands in Figure 4-29:
◆
Enable group 1 and groups 2 through 5 on the server and assign them to any local services.
◆
Define all local ports so they can access groups 1, 4, and 7. When a port logs in, all of its authorized
groups are usable. Since groups 1 and 4 are common to both the ports and local services, all the local
ports will be able to connect to any local service.
Note:
Group codes only apply to LAT connections. They have no effect on the other
protocols supported by the ETS (AppleTalk, LAN Manager, NetWare, and TCP/
IP).
◆
Set up port 2 to which the printer will be connected, reset the speed to 2400 baud, and disable
broadcasts to the port. For more information on port settings, see Chapter 5.
◆
Define remote access for port 2 (since the printer will not need to log in, and set the port’s name, and
disable any Break key processing.
Local> connect dump_port
%Info: connecting to service dump_port at node...
Local> DEFINE SERVER GROUPS 1,2-5 ENABLED
Local> DEFINE PORT 2 AUTHORIZED 1,4,7 ENABLED
Local> DEFINE PORT 2 SPEED 2400 BROADCAST DISABLED
Local> DEFINE PORT 2 ACCESS REMOTE NAME “printer” BREAK DISABLED
Local> LOGOUT PORT 2
Local> SET SERVICE “printer” PORT 2 IDENTIFICATION “LocalPrint”
Local> SAVE SERVICE “printer”