How do I check if a Kaspa node supports mining or wallet connections?

You can verify a Kaspa node accepts mining or wallet connections in two ways: attempt to connect your wallet or mining utility directly to the node's address, or run the kaspactl core utility with the appropriate command-line parameter against that node. The distinction matters because DNS seeders list nodes intended for syncing (port 16111) but give no guarantee that the RPC port (16110) — required for mining and wallet operations — is open on any given node. Knowing how to test a node before committing to it prevents wasted configuration and connection failures.