if disconnection is the only issue (e.g. not changing ip addresses between disconnect/re-connect), aan(8) might be what you need.

On Fri, Nov 7, 2014 at 1:44 AM, András Hrubák <bandie9100@gmail.com> wrote:

I connect plan9 by drawterm. After closing drawterm, how do I
re-connect to its rio to see again windows which were started before?
How do I reattach a window running e.g. 'rc' from other login session
to the current?