+ char *banner; /* SSH-2 banner message */
+ int verify_reverse_mapping; /* cross-check ip and dns */
+ int client_alive_interval; /*
+ * poke the client this often to
+ * see if it's still there
+ */
+ int client_alive_count_max; /*
+ * If the client is unresponsive
+ * for this many intervals above,
+ * disconnect the session
+ */