Specifications

Chapter 6 Using Security Technologies
Default Niagara Port Numbers
Niagara Release 2.3
Niagara Networking & Connectivity Guide Revised: May 22, 2002
6–9
Changing Niagara Default Ports
You will note that most connections between Niagara hosts listed in the previous
table occur on the default HTTP port of 80, or the host administration port of 3011.
Both of these ports can be changed in our application. You can also change the server
port of any Niagara host acting as a time synchronization server. Typically, you do
not need to change these ports but you may choose to do so for security or other
reasons.
Changing these default ports is discussed in the following sections:
• Changing the Station HTTP Port (80)
• Changing the Administration Port (3011)
• Changing the Time Synchronization Port
Changing the
Station HTTP
Port (80)
As referenced in Table 6-1, the JDE and many interstation processes use port 80 for
communications. This port is also used by:
• browser users to access Gx pages and station administration pages (those
requiring a station-based login), such as:
– http://<host_name>/
– http://<host_name>/chart/log
– http://<host_name>/prism
– http://<host_name>/db
– http://<host_name>/alarm
• the Admin Tool for functions such as:
– DBadmin functions
– release upgrades
– station backups
• the station monitor (on UDP port 80)
Changing the default HTTP port of the station is a two step process:
• Changing the HTTP Port of the Station
• Changing the HTTP Port used by the Admin Tool for Station Functions
Changing the HTTP Port of the Station
Procedure 6-1 Changing the HTTP port of the station.
Step 1 In the JDE, open the station on which you want to change the HTTP port.
Step 2 In the tree view, right-click the station and select Go > Properties.
The properties sheet of the station opens.
Figure 6-3 provides an example of this step being performed on the tutorial station
of a Web Supervisor.