Hello!

On Sat, Mar 24, 2018 at 12:04:56AM +0100, Ph. Gras wrote:

> I'm running several websites with different domain names on a Debian 9 server and
> have problems to have a connection on port 443 for some days.
>
> Certificates are generated by let's encrypt and do the job on other services except
> NginX, for example :
> # openssl s_client -connect mailbox.fredlutaud.com:443 -showcerts
> CONNECTED(00000003)
> write:errno=0
> ---
> no peer certificate available
> ---
> No client certificate CA names sent
> ---
> SSL handshake has read 0 bytes and written 176 bytes
> Verification: OK

As per openssl output, the were no server response to the
SSL handshake.

[...]

> Do you have an idea to solve my problem ?

First of all, you have to look into your nginx logs and
configuration to find out what's going on here.

--
Maxim Dounin
http://mdounin.ru/
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