I would like to test if there is connectivity from api gateway to a specific target host. Usually I use "Telnet <targethost> <targetport>". What tool do you use for this task?
I usually use "curl -v <host> <port>" on the gateway. And if you run into SSL/certificate issues you can also add -k.
I use TCPing on Windows. About as simple as you can get. Just sends a Syn and reports whether or not you get back a syn/ack.
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