Apache2 : Configure mod_http22026/05/25

	Configure [mod_http2] to use HTTP/2.
[1]	Configure SSL/TLS settings, refer to here. (many Web browsers support HTTP/2 only on HTTPS connection)
[2]	Configure [mod_http2]. It's possible to set it for each virtual hostings. Note that [mod_http2] is not enabled in [prefork] mode, so the Apache httpd operating mode must be the Ubuntu default [event] or [worker] mode.

# configure [mod_http2] to any virtual host sites you'd like to set

root@www:~#

vi /etc/apache2/sites-enabled/dlp.srv.world.conf

# add [Protocols ***] line

<VirtualHost *:443>
    Protocols h2 http/1.1
    DocumentRoot /var/www/dlp
    ServerName dlp.srv.world:443
    ServerAdmin webmaster@dlp.srv.world
    ErrorLog /var/log/apache2/dlp_ssl_error_log
    CustomLog /var/log/apache2/dlp_ssl_access_log combined
    SSLEngine on
    SSLCertificateFile /etc/letsencrypt/live/dlp.srv.world/cert.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/dlp.srv.world/privkey.pem
    SSLCertificateChainFile /etc/letsencrypt/live/dlp.srv.world/chain.pem
</VirtualHost>

<Directory "/var/www/dlp">
    Options FollowSymLinks
    AllowOverride All
    Require all granted
</Directory>

root@www:~#

a2enmod http2

Enabling module http2.
To activate the new configuration, you need to run:
  systemctl restart apache2

root@www:~#

systemctl restart apache2

# verify accesses
# OK if [HTTP/2] is shown

root@www:~#

curl -I https://dlp.srv.world/

HTTP/2 200
last-modified: Mon, 25 May 2026 00:19:52 GMT
etag: "29b0-6529956553738"
accept-ranges: bytes
content-length: 10672
vary: Accept-Encoding
content-type: text/html
date: Mon, 25 May 2026 05:42:39 GMT
server: Apache/2.4.66 (Ubuntu)

Matched Content