Test Network Access
Once your ArdexaLinux machine is connected to the local network, you can test communications with other systems on the network.
Ping
Using the Ardexa Web Interface, open the Remote Shell on the target Device and run the following command:
This will send three ping packets (ICMP) to the target IP address. You can replace 192.168.0.1
with any IP address you like to check that your ArdexaLinux machine can communicate with it.
WARNING: the -c3
option is important, without it the command will never return!
TCP Port
To check access to a specific TCP port, such as a Web, OPCUA or Modbus TCP server, the nmap
command can be used to check the port is open, e.g. To check port 80 is open on 192.168.0.1
, run:
This will return the following output if the port is open:
Or the following output if the port is closed:
Port scan
If you are unsure what ports are available on a target system, you can scan for a list of open ports by leaving out the -p 80
option, e.g.
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