Paul Michael Reilly <p...@pajato.com> wrote:
> I've been writing code to deal with loss of connections.  It occurs to 
> me that isConnected() essentially captures the concept of "was connected 
> once.." and does not embody the "is still connected, even now" concept. 
>   Am I right in this interpretation of the source code?  Does the 
> underlying socket have the wherewithal to provide a real "is still 
> connected" status?

Probably not, however OpenSSH has an extension to the SSH protocol
where the client sends periodic "ping" messages to the server and
checks that a response came back.  I don't know if JSch implements
this extension ("keepal...@openssh.com"), but it could be used to
periodically ping the remote...

-- 
Shawn.

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