This is a symbolic name for this connection.
The name should consist only of alfanumeric and underscore characters (a-z, A-Z, 0-9 and _).
+If Name starts with a $, then the contents of the environment variable that follows will be used.
+In that case, invalid characters will be converted to underscores.
+If Name is $HOST, but no such environment variable exist,
+the hostname will be read using the gethostnname() system call.
+
@cindex PingInterval
@item PingInterval = <@var{seconds}> (60)
The number of seconds of inactivity that tinc will wait before sending a