Compiling Nginx with HTTP/2 and ALPN

To have HTTP/2 fully supported in Nginx, you will need OpenSSL 1.0.2+ to have APLN enabled (What is APLN)

Unfortunately, nowadays most linux distributions are shipping with older version of OpenSSL. For example Ubuntu 14.04 is using openssl 1.0.1f

I can also use 3rd party repositories but I couldn’t find out something I think it is trusted

So it leaves me with only one option: compiling from source

Good thing is, it is pretty easy to compile nginx with a custom OpenSSL. You don’t even have to compile the OpenSSL and install into the system (which could break your system dependences)

All you have to do are:

  1. Download the latest stable OpenSSL from https://www.openssl.org/source/ and extract the tar
  2. Download the latest stable nginx from http://nginx.org/en/download.html and extract the tar
  3. Go into nginx source folder and

    • Note: –with-openssl points to the openssl source folder instead of the installation folder
  4. Enable HTTP/2 in nginx configure file

That’s it

And here is how you can verify if your website is now supporting HTTP/2 and ALPN

Which will report

  • “ALPN protocol: h2”
  • or “No ALPN negotiated”

CC BY-NC-SA 4.0 Compiling Nginx with HTTP/2 and ALPN by c11e is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

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