ftp timeouts?

[Jeffry Killen]

Hi;

I have a set up using an installation or FreeBSD 10.1 as a web  
development server.
I use another machine on local network to connect to it via ftp. But I  
notice the ftp
connection from the client is dropped after a certain amount of  
inactivity.  If I open a file
and spend too much time editing the file before saving back to the  
server, the connection
is delayed for some 30 seconds before the save process is executed.

It also seems to be using SFTP because when I first make the  
connection my
ftp client (gui Fetch on Mac OSX 10.6x) asks me to enter the password  
even
though it is already in the shortcut record.

What configuration file would this be dependent on. And what value(s)?

Note: I do have ftp called by inetd.

Thanks for time and attention
JK