How to maintain Session with putty?
Found one simple solution for the putty to resolve the "Idle Session Timeout", which overcomes logging again and again to Unix box Putty Sessions. This solution ensures that even if the login remained Idle for a longer time the session does not get killed till exit is explicitly performed.
In Putty Login Screen, Inside Category goTo Connections and change the value for "seconds between keepalives" to a positive number greater than 0. most probably 2 to keep the session alive. This keeps the session alive for even many days.