Considering your rather old version of nginx coming from Ubuntu packages, I
suggest you use the lastest stable, officially available on nginx.org
<https://nginx.org/en/linux_packages.html#stable>.

Not related to your issue, but should not hurt (except with regressions ofc
;) ).
---
*B. R.*

On Thu, Sep 29, 2016 at 3:17 PM, hotwirez <nginx-forum@forum.nginx.org>
wrote:

> Maxim Dounin Wrote:
> -------------------------------------------------------
> > Hello!
> >
> > On Wed, Sep 28, 2016 at 12:44:45PM -0400, hotwirez wrote:
> >
> > [...]
> >
> > > I wanted to mention that I've run into this issue as well when
> > trying to
> > > enable OCSP stapling, where I have a default_deny SSL server that
> > has a
> > > self-signed certificate where I don't want to use OCSP stapling, and
> > other
> > > actual server entries for actual sites where I want OCSP stapling
> > enabled.
> > > If I enable stapling for only the real sites, it appears to be
> > silently
> > > disabled. If I enable it for all server instances, it notices that
> > the
> > > default server uses a self-signed certificate and disables stapling.
> > If I
> > > remove the default server, OCSP stapling works for the remaining
> > sites, but
> > > then accessing the site using a means other than the correct server
> > name
> > > provides the SSL certificate for one of the servers.
> >
> > Problems with OCSP stapling if it is disabled in the default
> > server{} block were traced to be an OpenSSL bug, silently fixed in
> > 1.0.0m/1.0.1g/1.0.2. See here for details:
> >
> > https://trac.nginx.org/nginx/ticket/810
> >
> > If you see the problem it means you have to update the OpenSSL
> > library you are using.
> >
> Thank you; it's great you tracked that down! I am on OpenSSL 1.0.1f and
> Nginx 1.4.6; (Ubuntu 14.04 via apt), so that makes sense. I'll upgrade.
>
> Thanks again!
>
> Posted at Nginx Forum: https://forum.nginx.org/read.
> php?2,257833,269955#msg-269955
>
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