Not able to activate text compression on apache 2.4 server - ssl

Question

i search many postings about activating compression an apache 2.4.10 servers. Non of the solutions are working for me. I have no more ideas.
I activated all neccessary modules (here printout of apachectl -M):
Loaded Modules:
access_compat_module (shared)
alias_module (shared)
auth_basic_module (shared)
authn_core_module (shared)
authn_file_module (shared)
authz_core_module (shared)
authz_host_module (shared)
authz_user_module (shared)
autoindex_module (shared)
core_module (static)
deflate_module (shared)
dir_module (shared)
env_module (shared)
expires_module (shared)
filter_module (shared)
http_module (static)
log_config_module (static)
logio_module (static)
mime_module (shared)
mpm_prefork_module (shared)
negotiation_module (shared)
perl_module (shared)
php7_module (shared)
proxy_http_module (shared)
proxy_module (shared)
reqtimeout_module (shared)
rewrite_module (shared)
setenvif_module (shared)
so_module (static)
socache_shmcb_module (shared)
ssl_module (shared)
status_module (shared)
unixd_module (static)
version_module (static)
watchdog_module (static)
Here my .htaccess File:
# Deflate Compression by MimeType
<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/atom_xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-shockwave-flash
AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
AddOutputFilterByType DEFLATE application/x-font-ttf
AddOutputFilterByType DEFLATE application/x-font-opentype
AddOutputFilterByType DEFLATE application/x-font-woff
AddOutputFilterByType DEFLATE font/ttf
AddOutputFilterByType DEFLATE font/otf
AddOutputFilterByType DEFLATE font/woff
</IfModule>
# Deflate Compression by FileType
<IfModule mod_deflate.c>
<FilesMatch "\.(js|jpg|jpeg|gif|png|svg|css|eot|ttf|otf|woff)$">
ExpiresActive on
ExpiresDefault "access plus 1 month"
SetOutputFilter DEFLATE
</FilesMatch>
</IfModule>
# new Deflate Compression
<IfModule mod_deflate.c>
SetOutputFilter DEFLATE
AddOutputFilterByType DEFLATE text/html text/css text/plain text/xml application/javascript application/x-javascript application/x-httpd-php application/x-font-ttf application/x-font-opentype application/x-font-woff font/ttf font/otf font/woff
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html
SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip
</IfModule>
# GZip Compression
<IfModule mod_gzip.c>
mod_gzip_on Yes
mod_gzip_dechunk Yes
mod_gzip_item_include file .(html?|txt|css|js|php|pl)$
mod_gzip_item_include handler ^cgi-script$
mod_gzip_item_include mime ^text/.*
mod_gzip_item_include mime ^application/x-javascript.*
mod_gzip_item_exclude mime ^image/.*
mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*
</IfModule>
# turns cache on for 1 month
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType text/css "access plus 1 month"
ExpiresByType text/javascript "access plus 1 month"
ExpiresByType application/javascript "access plus 1 month"
ExpiresByType application/vnd.ms-fontobject "access plus 1 year"
ExpiresByType application/x-font-ttf "access plus 1 year"
ExpiresByType application/x-font-opentype "access plus 1 year"
ExpiresByType application/x-font-woff "access plus 1 year"
ExpiresByType image/gif "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"
ExpiresByType image/png "access plus 1 month"
ExpiresByType image/svg+xml "access plus 1 month"
ExpiresByType image/x-icon "access plus 1 month"
</IfModule>
<IfModule mod_headers.c>
<filesmatch "\\.(ico|jpe?g|png|gif|svg|swf|eot|ttf|woff)$">
Header set Cache-Control "max-age=2592000, public"
</filesmatch>
<filesmatch "\\.(css)$">
Header set Cache-Control "max-age=604800, public"
</filesmatch>
<filesmatch "\\.(js)$">
Header set Cache-Control "max-age=604800, public"
</filesmatch>
</IfModule>
Here my 000-default.conf File:
<VirtualHost *:443>
ServerName www.xxxxxxxxxxx.com
ServerAlias xxxxxxxxxxx.com
SSLEngine on
SSLProtocol TLSv1.2
SSLCertificateFile /var/ssl/xxxxxxxxxxx.crt
SSLCertificateKeyFile /var/ssl/xxxxxxxxxxx.key
SSLCACertificateFile /var/ssl/Intermediate_CA_Bundle.crt
DocumentRoot /var/www/public
<Location />
RewriteEngine On
#
# circumvent relative linking
#
RewriteCond %{REQUEST_URI} ^(.*)/([^/]+)/favicon.ico$ [NC]
RewriteRule ^(.*)/favicon.ico$ /favicon.ico [R=301,L]
RewriteCond %{REQUEST_URI} ^(.*)/([^/]+)/assets/(.*)$ [NC,OR]
RewriteCond %{REQUEST_URI} ^(.*)/([^/]+)/images/(.*)$ [NC,OR]
RewriteCond %{REQUEST_URI} ^(.*)/([^/]+)/css/(.*)$ [NC,OR]
RewriteCond %{REQUEST_URI} ^(.*)/([^/]+)/js/(.*)$ [NC,OR]
RewriteCond %{REQUEST_URI} ^(.*)/([^/]+)/fonts/(.*)$ [NC]
RewriteRule ^(.*)/([^/]+)/([^/]+)$ /$2/$3 [R=301,L]
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]
RewriteRule ^.*$ index.php [NC,L]
</Location>
</VirtualHost>
AddDefaultCharset utf-8
ScriptAlias /cgi-bin/ /var/www/cgi-bin/
<Directory /var/www/>
Options -Indexes +FollowSymLinks
AllowOverride All
Require all granted
</Directory>
<Files "*.inc">
Require all denied
</Files>
ErrorDocument 404 /404.html
Can anybody help to get text/html compression working on my apache server?
Thanks a lot.

Answer 1

To enable compression over SSL it is necessary to use SSLCompression on in the apache config. But for security reasons the openssl-lib is build without compression support. For enabling SSL compression it is necessary the build your own openssl library. Here more infos: https://security.stackexchange.com/questions/137182/enabling-sslcompression-in-apache