3.6 TYPICAL CONNECTION TO DSEWEBNET® SERVER
The DSEGateway
®
communicates with the DSEWebNet® Server at regular (configurable) intervals to
upload its logged data to the main database.
This connection is via Ethernet (or internet) or GPRS (internet over the GSM cellular network).
NOTE: GSM / GPRS service is not available with DSE891 Ethernet Gateway.
3.6.1 DSEWEBNET® SERVER CONNECTION INFORMATION
This sections contains information that may be useful to the I.T. or Network Managers on sites where
the DSEGateway
®
is installed.
All the data is sent using HTTP either on port 80 or 83. There is no ‘read’
action from the DSEWebNet® Server to the DSEGateway
®
.
All data transfer streaming is initialized by the DSEGateway
®
and posted
on the DSEWebNet® Server.
All the data is sent using a web socket protocol connection for real time
data and http posts for historic data.
The data for both of these is not encrypted but is not human readable.
i.e. numbers and letters only rather than words.
The DSEGateway
®
constantly contacts the DSEWebNet® Server, no
connection is initialized by the Server.
All users have a different php session with “session takeover” attack
prevention taken in to account.
The passwords are hashed in MD5 format, the rest is in clear text.
3.6.2 FIREWALL SETTINGS
To allow the DSEGateway
®
to communicate with the DSEWebNet® Server it is important than any
network firewalls do not block access to the relevant ports.
This is particularly important with wired connection to the internet however usually GSM networks do
not include a network firewall.
The DSE Server names and port numbers are listed below:
To provide the best possible service, it is recommended that any firewall is configured to allow access
to all subdomains on the dsewebnet.com domain as follows:
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