Guralp Systems CMG-DCM build <10,000 - Manual (Page 166)

CMG-EAM (Platinum Firmware)
A single GSTM server instance can accept simultaneous connections
from multiple clients. For each client, a row in the “Client setting”
table needs to be filled in.
The “Client name” column should contain the username, as
configured in the GSTM client. The encryption key should match that
configured in the client (see the notes in the client configuration
section on page 161.for more information).
The GSTM server can run an arbitrary command when a client
successfully initiates communication. Any text entered into the
“Startup command” column is passed to the Linux shell for execution.
The path to a shell script can be entered here if it is required to run
multiple commands. Contact Güralp support if you need assistance
with this feature.
An active GSTM link can forward arbitrary TCP connections to the
clients from any host that can access the server. The system is very
flexible but complex configurations can become confusing. We
suggest you adopt the following strategy:
1. Pick a private sub-network, not used elsewhere, to map to the
clients. Nominate an address in this subnet to represent each
client. For example, if you have seven clients, you could use
addresses 10.99.0.1 through to 10.99.0.7 inclusive.
2. Configure all of these addresses as additional IP addresses on
the sever. To do this, click on “Interfaces” under
“Networking” in the “Configuration” section of the left-hand-
side menu in the web interface or, if using the command line,
choose “Networking” from the main menu in gconfig. Select
the appropriate interface (typically eth0) and, on the resultant
page, scroll to the bottom and click the “Expert” button.
166 Issue C