[stunnel-users] Connecting stunnels
Gabor.Juhasz at KONE.com
Wed Mar 30 14:45:25 CEST 2016
Thanks for you reply.
Yes, I mean how you wrote.
Could you write the name of this feature or doc to understand how it works.
Thanks & Kind regards,
From: stunnel-users [stunnel-users-bounces at stunnel.org] on behalf of Ludolf Holzheid [lholzheid at bihl-wiedemann.de]
Sent: Wednesday, March 30, 2016 3:34 PM
To: stunnel-users at stunnel.org
Subject: Re: [stunnel-users] Connecting stunnels
On Wed, 2016-03-30 10:54:29 +0000, Juhasz Gabor wrote:
> I am newbie in stunnel world so sorry for my question
> if it was already answered earlier.
> I have the following task to solve somehow :
> We have 1 server with 2 stunnel connections (any kind).
> We have e.g. http communicatoin via tunnels.
> Is there any support in stunnel to connect them somehow.
> Probably we do not need bidirectional communication.
> [client1]----- stunnel 1---> [server]------stunnel2 ----->[client2]
> So [client1] --> [client2]
> If there is no support in stunnel do you have any idea how to do it?
I'm not sure I understand what you are trying to accomplish.
Let's start with nomenclature:
o A server is a unit (hardware or software) that provides services,
e.g. e-mail distribution.
o A client is a unit that uses services a server provides.
A client connects to a server if it wants to use a service. For that,
the server listens on an address (e.g. IP host address and TCP port
number) known to the client.
For instance, a mail client establishes a TCP connection to TCP port
25 on a host running an SMTP mail server if it wants to send an
A server does not establish any connections to clients. It just
listens on a known address and waits for clients to connect.
If, in your example, 'client2' is a server according to my definition
and 'client1' is a real client, then yes, stunnel could be used to
e.g. encrypt the traffic between 'client1' and 'client2'.
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