The google blog post claims that ALPN is already used 99% of the time for HTTP&#x2F;2 in Chrome.<p>From what I can tell, anyone using distro packages for Debian is S.O.L unless you use testing (stretch) because OpenSSL is only 1.0.1* in stable.<p>For Ubuntu, unless you&#x27;re using 15.10&#x2F;wily, same deal.<p>As it happens, gnutls seems to have supported ALPN since 2013 - before RFC7301 was published (presumably based on the draft from 2013). Unfortunately, none of the usual suspects (HAProxy, Hitch, Pound, Nginx) support gnutls.<p>There is mod_gnutls to use gnutls in Apache, but it&#x27;s availability on debian is not fantastic (it&#x27;s available for wheezy and stretch but not jessie).<p>Obviously this is all moot if you&#x27;re compiling your own &lt;insert daemon for :443&gt;