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From Eric Covener <>
Subject Re: ALPN patch comments
Date Thu, 04 Jun 2015 12:30:03 GMT
On Thu, Jun 4, 2015 at 8:08 AM Yann Ylavic <> wrote:

> I think what makes the thing a bit awkward is that the
> negotiable/preferred ALNP identifiers (protocols) is configurable in
> both httpd (SSLAlpnPreference) and mod_h2 (hard coded).
> The former is only a hint while the latter is the real proposal to the
> client (with the fall back to "http/1.1").
> Maybe it would be cleaner to let the modules register the ALPN
> identifiers (at configure time, with another optional function), and
> get rid of SSLAlpnPreference on mod_ssl side.
> If no identifier is registered, mod_ssl won't register the ALPN
> callback either, so that httpd continues to work without ALPN when not
> needed.
> I think we need SSLAlpnPreference any time modules register ALPN
protocols, otherwise the admin has no control over whih is negotiated.  I
don't think we should rip it out.

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