Use the Telnet client to test a network connection

Originally published at: Use the Telnet client to test a network connection - RDR-IT

Presentation In this tutorial, we will see how to use the Telnet client to test the connection to a service (IP: PORT) for diagnostic purposes. Telnet is a client / server TCP protocol that listens on port 23 which allows the administration of equipment (switches, firewall …) and of certain servers (UNIX, LINUX). It is…