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Question

Enable http2 in apache

Posted July 17, 2019 17.3k views
ApacheUbuntu 18.04

Hi, I tried to enable http2 with apache2 but I couldn’t. I did this:

  • I activated http2 with this: sudo a2enmod http2
  • I added this line in my virtual host with 443 port: Protocols h2 http/1.1.

I have a ubuntu server 18.04.2 and apache 2.4.29, also i use letsencrypt for the site.

I need to do something else?

Thanks

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palma2039
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palma2039

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2 answers
bobbyiliev July 18, 2019

Hello,

That should be pretty much it.

You can now use your browser to check if the resources are actually going through http2. You can do that with the browsers developer tool, then go to the networking tab and try accessing your site, there you should see the protocol that is being used.

Note that the Protocol column might not be there, so you need to enable it, just right click on any of the other columns and choose tick the Protocol from the drop down.

Let me know how it goes!
Bobby

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  • palma2039 July 18, 2019

    Hi, thanks, I checked this but not work the http2, I think that I need to do someting else.

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    • bobbyiliev July 18, 2019

      That is pretty much it, I have the same setup for my website actually. You can check it here:

      https://bobbyiliev.com

      One thing that I could suggest is adding the Protocols h2 http/1.1 line in your Vhost for port 80 as well. Also did you restart apache after the changes?

      Regards,
      Bobby

      Reply Report
      • palma2039 July 18, 2019

        Hi, yes I rebooted apache and server. This is my virtual host configuration (80 and 443):

        <VirtualHost *:80>
    ServerAdmin abc2039@gmail.com
    ServerName abc.com
    ServerAlias www.abc.com
    DocumentRoot /var/www/abc.com/html
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
RewriteEngine on
RewriteCond %{SERVER_NAME} =abc.com [OR]
RewriteCond %{SERVER_NAME} =www.abc.com
RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]
<Directory /var/www/abc.com/>
    AllowOverride All
</Directory>

Protocols h2 http/1.1
</VirtualHost>

        <IfModule mod_ssl.c>
<VirtualHost *:443>
    ServerAdmin xxxx9@gmail.com
    ServerName abc.com
    ServerAlias www.abc.com
    DocumentRoot /var/www/abc.com/html
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined

Include /etc/letsencrypt/options-ssl-apache.conf
SSLCertificateFile /etc/letsencrypt/live/abc.com/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/abc.com/privkey.pem
Protocols h2 http/1.1
</VirtualHost>
</IfModule>

        And in apache2.conf I added “Protocols h2 h2c http/1.1”

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wooge April 29, 2021

For anyone looking for a solution to this, I had the same issue and followed the steps here, thanks to the discussion here, lead me in the right direction:

sudo apt install php7.4-fpm
sudo a2enmod proxy_fcgi
sudo a2enconf php7.4-fpm
sudo a2dismod php7.4
sudo a2dismod mpm_prefork
sudo a2enmod mpm_event
sudo service apache2 restart

Then enabling the Apache module (as the OP had done):

sudo a2enmod http2
sudo service apache2 restart

Then adding this config line to your vhost configs (as the OP had done):

<VirtualHost *:443>
  Protocols h2 http/1.1
  .... 
</VirtualHost>

Source: https://helgeklein.com/blog/2018/11/enabling-http-2-in-apache-on-ubuntu-18-04/

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