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telnet

Usage

telnet ip port

Response

  1. Connected to example.com.
  2. telnet: Unable to connect to remote host: Connection refused.
    1. Possible reasons:
      1. The server is not running a service on the specified port.
      2. A firewall is blocking the connection.
      3. Current IP is blocked by the server.
      4. Current IP is duplicated with another device on the network.
  3. telnet: Unable to connect to remote host: Connection timed out