Apache configuration

default.conf

# Ubuntu 18.04
# etc/apache2/sites-available/default.conf
# a2ensite default

<VirtualHost *:80>
    ServerName localhost
    DocumentRoot /var/www/html/public
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log common

    <Directory /var/www/html/public>
        Options Indexes FollowSymLinks MultiViews
        AllowOverride All
        Require all granted
    </Directory>

    <IfModule mod_dir.c>
        DirectoryIndex index.php
    </IfModule>

    <IfModule mod_deflate.c>
        AddOutputFilterByType DEFLATE text/plain
        AddOutputFilterByType DEFLATE text/html
        AddOutputFilterByType DEFLATE application/xhtml+xml
        AddOutputFilterByType DEFLATE text/xml
        AddOutputFilterByType DEFLATE application/xml
        AddOutputFilterByType DEFLATE application/xml+rss
        AddOutputFilterByType DEFLATE application/x-javascript
        AddOutputFilterByType DEFLATE text/javascript
        AddOutputFilterByType DEFLATE text/css
        AddOutputFilterByType DEFLATE image/png
        AddOutputFilterByType DEFLATE image/gif
        AddOutputFilterByType DEFLATE image/jpeg
        AddOutputFilterByType DEFLATE application/json

        # Level of compression (Highest 9 - Lowest 1)
        DeflateCompressionLevel 9
        # Netscape 4.x has some problems.
        BrowserMatch ^Mozilla/4 gzip-only-text/html
        # Netscape 4.06-4.08 have some more problems
        BrowserMatch ^Mozilla/4\.0[678] no-gzip
        # MSIE masquerades as Netscape, but it is fine
        BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html
    </IfModule>

    <IfModule mod_headers.c>
        Header append Vary User-Agent env=!dont-vary
    </IfModule>
</VirtualHost>