Specifications

Chapter 6 Using Security Technologies
Default Niagara Port Numbers
Niagara Release 2.3
Niagara Networking & Connectivity Guide Revised: May 22, 2002
6–17
Figure 6-10 Using FTP to copy a file to a JACE-4/5.
Step 5 Reboot the JACE.
Step 6 Verify connectivity to the host by connecting to it using the Admin Tool. Be sure to
reference the new port number in the Connect to Host dialog box (see “Impact of
Changing Default Niagara Ports,” page 6-18).
Changing the
Time
Synchronization
Port
With time synchronization, one host can receive updates to its system time from
another host. A Niagara host can function as both a time synchronization client and
a time synchronization server. Niagara hosts can also use Internet time synch servers
for system time updates.
When acting as a server, a Niagara host can be contacted on port 37 (the “well
known” time synchronization port) by any time synchronization client. You can
change this default port on the properties sheet of the TimeSyncService (see
Procedure 6-7 for detailed instructions).
Note If you change the default server port, other hosts looking to this time server for
synchronization must contact the host on the new port. For instructions on how to
configure a Niagara client to use the new port, see “Changing the time
synchronization port a Niagara client uses to contact a server.,” page 6-20.
Procedure 6-7 Changing the default time synchronization port.
Step 1 Using the JDE, open the station for which you want to change the time
synchronization port.
Step 2 In the tree view, expand the services container.
Step 3 Right-click the TimeSyncService, and choose Go > Properties.
Step 4 Click the Config tab.
Step 5 Edit the serverPort text box, removing the default port of 37 and replacing it with
your chosen port number.