title: How to keep telnet connection alive from client side
body: <p>I have a device as a telnet server but drops the connection if no packet is received in 60 seconds, for some reason this behavior cannot be changed. Putty has a feature to send null packets to the server periodically to keep the session alive, which works fine for me. But some times I have to telnet to the device from linux terminal, where putty is not available. So I wonder if it's possible to periodically send null packets with the linux telnet client, or any other way to keep the session alive, or other command line telnet client that could do this.</p>