<Ctrl-]>, then enter quit

The keys to exit properly are Ctrl-D. It's equivalent to "logout".

Ctrl+C just send Break signal to current shell

if you want to exit, just enter "Ctrl+]" then enter "quit"

note: it is better to logoff from server, then server send "fin"

and connection will closed..

I think you use a application connection

in your application used CTRL+C for any process

you can change that od unused that

or

in your server tarp for CTRL+C

you can type

trap " " SIGINT or trap " " 2

Thanks !