Then here I see a design flaw unless being as transparent as possible is
not a goal for stunnel: “Stunnel connects to the server only when a client
connects to Stunnel”.
Why not listening only when the server, known beforehand from configs, is
listening?

On Wed, 14 Apr 2021 at 20:01, Ludolf Holzheid <[email protected]>
wrote:

> On Wed, 2021-04-14 19:45:06 +0200, Jorge Redondo Flames wrote:
> > Stunnel could listen on its local port *only* when the peer server is
> > listening on its corresponding server socket. So if there is no serve on
> > the other side, there should not be local listening socket. Does not that
> > make sense?
>
> Stunnel connects to the server only when a client connects to Stunnel.
> If Stunnel is not listening for clients, it does not try to connect to
> the server.  If it does not try to connect to the server, it does not
> know if the server is listening.
>
> Ludolf
>
>
> > On Wed, 14 Apr 2021 at 19:38, Ludolf Holzheid <
> [email protected]>
> > wrote:
> >
> > > On Wed, 2021-04-14 19:13:03 +0200, Jorge Redondo Flames wrote:
> > > > [..]
> > > >
> > > > Is there a way to configure Stunnel to *close* the local socket (not
> > > > listening anymore) whenever the peer process (i.e. the server) has
> closed
> > > > its socket?
> > >
> > > Stunnel listens for connection request from the client(s) and connects
> > > to the server on behalf of the client(s).  How will a client ever be
> > > able to connect through Stunnel again if Stunnel closes the listening
> > > socket?
> > >
> > > Ludolf
>
> --
>
> Ludolf Holzheid
>
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