I search if my server is running OpenSSL with ALPN support. I need that to know if I have to install OpenSSL again but with ALPN support or I can skip that. I want to build HTTP/2 at DirectAdmin server.
openssl version -a | grep -i alpn but nothing showed up.
CentOS Linux release 7.3.1611 (Core)
OpenSSL 1.0.1e-fips 11 Feb 2013 built on: Mon Feb 20 14:38:48 UTC 2017