Re: Two web-servers with different IP in LAN

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On Saturday 18 April 2020 at 16:35:30, mail mail wrote:

> I get error:
>  
> Sat Apr 18 17:07:06.005494 2020] [ssl:emerg] [pid 16506:tid
> 139660538349440] AH02572: Failed to configure at least one certificate and
> key for portal.mydom.com:443
> [Sat Apr 18 17:07:06.005643 2020] [ssl:emerg] [pid 16506:tid
> 139660538349440] SSL Library Error: error:140A80B1:SSL
> routines:SSL_CTX_check_private_key:no certificate assigned 

> And it is true. Those certificates stored in 192.168.1.20 

If you configure a machine *either* as an HTTPS proxy *or* as an HTTPS web 
server, it needs to have the requested site's SSL certificate on it, otherwise 
clients will refuse to connect, or the server will refuse to start.

HTTPS is a security mechanism between a client and the server it is connecting 
to.  The client knows nothing asbout what that server might do afterwards 
(such as connecting on to another server, as a proxy does).

It's entirely feasible to have a web proxy accept HTTP connections and pass 
the requests on as HTTPS, or vice versa.  If both connections are HTTPS, then 
the proxy needs a certificate for the site the client is asking to connect to, 
and the proxy needs to trust the certificate presented by the ultimate origin 
server (ie: the "real" web server).  Those certificates might both be the same 
(in which case you probably need a pretty unusual DNS setup), but the basic 
rule is that anything answering HTTPS requests has to have a valid certificate 
for what is being requested.


Regards,


Antony.

-- 
Douglas was one of those writers who honourably failed to get anywhere with 
'weekending'.  It put a premium on people who could write things that lasted 
thirty seconds, and Douglas was incapable of writing a single sentence that 
lasted less than thirty seconds.

 - Geoffrey Perkins, about Douglas Adams

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