I am a bit of a newbe with Arduino.
I am using an Arduino UNO with an Ethernet Shield 2.
I need to check if a server at a fixed IP address is online by pinging it (alternatively checking that a TCP port is open).
Is there an easy way to do it?
I am checking the Ethernet library but it looks like it doesn't have a lot of IP support.
Is there an additional library that I could use?