When I write this post, the latest Nginx version is 1.8.1.1 on Ubuntu that still doesn’t support HTTP/2.0. The nginx version that supports HTTP/2.0 starts from version 1.9.5.

So if we want to enable HTTP/2.0 on our Nginx, we need to upgrade or install to correct version.

echo “deb http://nginx.org/packages/mainline/ubuntu/ `lsb_release -cs` nginx” >> /etc/apt/sources.list

echo “deb-src http://nginx.org/packages/mainline/ubuntu/ `lsb_release -cs` nginx” >> /etc/apt/sources.list

Run those commands above to add the PPA to update our Ubuntu Repository that include Nginx mainline release (mainline release is not same as stable release and provides latest “development” version)

curl http://nginx.org/keys/nginx_signing.key | apt-key add –

sudo apt-get update

Then you can install nginx:

sudo apt-get install nginx

or in case you are upgrading:

apt-get dist-upgrade

Note: In case you get error message like this:

dpkg: error processing archive /var/cache/apt/archives/….

trying to overwrite ‘/etc/default/nginx’, which is also in package nginx-common …

dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)

You need to remove the current nginx-common, and you can do that by this command:

sudo apt-get remove nginx-common