What I am going to ask is probably a simple problem but I can't figure out solution. I have installed apache2 on Debian server and updated php to version 7.3. I think that I have made a mistake when disabling/enabling some modules but I am not sure.

Since that moment, text formatting/styles are not shown at all. See the image please, it is a result of pure phpinfo()

What do I do?

Error log shows nothing

[Tue May 25 23:33:51.759710 2021] [mpm_prefork:notice] [pid 27142] AH00163: Apache/2.4.38 (Debian) OpenSSL/1.1.1d configured -- resuming normal operations [Tue May 25 23:33:51.759811 2021] [core:notice] [pid 27142] AH00094: Command line: '/usr/sbin/apache2'


#ServerRoot "/etc/apache2"

# The accept serialization lock file MUST BE STORED ON A LOCAL DISK.
#Mutex file:${APACHE_LOCK_DIR} default

# The directory where shm and other runtime files will be stored.

DefaultRuntimeDir ${APACHE_RUN_DIR}

# PidFile: The file in which the server should record its process
# identification number when it starts.
# This needs to be set in /etc/apache2/envvars

# Timeout: The number of seconds before receives and sends time out.
Timeout 300

# KeepAlive: Whether or not to allow persistent connections (more than
# one request per connection). Set to "Off" to deactivate.
KeepAlive On

# MaxKeepAliveRequests: The maximum number of requests to allow
# during a persistent connection. Set to 0 to allow an unlimited amount.
# We recommend you leave this number high, for maximum performance.
MaxKeepAliveRequests 100

# KeepAliveTimeout: Number of seconds to wait for the next request from the
# same client on the same connection.
KeepAliveTimeout 5

# These need to be set in /etc/apache2/envvars

HostnameLookups Off

ErrorLog ${APACHE_LOG_DIR}/error.log

LogLevel warn

# Include module configuration:
IncludeOptional mods-enabled/*.load
IncludeOptional mods-enabled/*.conf

Include ports.conf

<Directory />
    Options FollowSymLinks
    AllowOverride None
    Require all denied

<Directory /usr/share>
    AllowOverride None
    Require all granted

<Directory /var/www/>
    Options Indexes FollowSymLinks
    AllowOverride None
    Require all granted

AccessFileName .htaccess

<FilesMatch "^\.ht">
    Require all denied

LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined
LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %O" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent

IncludeOptional conf-enabled/*.conf

# Include the virtual host configurations:
IncludeOptional sites-enabled/*.conf

<IfModule mod_ssl.c>
SSLStaplingCache shmcb:/var/run/apache2/stapling_cache(128000)
<VirtualHost *:443>

    ServerAdmin webmaster@localhost
    DocumentRoot /var/www/html

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined

Header always set X-Content-Type-Options "nosniff"
Header always set X-Xss-Protection "1; mode=block"
Header always set X-Frame-Options "sameorigin"
Header always set Referrer-Policy "same-origin"
Header set Content-Security-Policy "default-src 'self';"
Header always set Permissions-Policy "geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),magnetometer=(),gyroscope=(),fullscreen=(self),payment=()"
Include /etc/letsencrypt/options-ssl-apache.conf
SSLCertificateFile /etc/letsencrypt/live/CENSORED/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/CENSORED/privkey.pem
Header always set Strict-Transport-Security "max-age=31536000"
SSLUseStapling on

    Loaded Modules:
     core_module (static)
     so_module (static)
     watchdog_module (static)
     http_module (static)
     log_config_module (static)
     logio_module (static)
     version_module (static)
     unixd_module (static)
     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)
     deflate_module (shared)
     dir_module (shared)
     env_module (shared)
     filter_module (shared)
     headers_module (shared)
     mime_module (shared)
     mpm_prefork_module (shared)
     negotiation_module (shared)
     php7_module (shared)
     proxy_module (shared)
     proxy_fcgi_module (shared)
     proxy_http_module (shared)
     reqtimeout_module (shared)
     rewrite_module (shared)
     setenvif_module (shared)
     slotmem_shm_module (shared)
     socache_shmcb_module (shared)
     ssl_module (shared)
     status_module (shared)

If it comes to the modules there might be actually some mistakes; i tried to install php7.3 fpm bud ended up using the "not fpm" version. Thank you so much for your time.

  • 2
    Hi Maty, and welcome to ServerFault. Please share your complete apache2 config (apart from Debian's defaults of course) to give us any chance of helping you.
    – fuero
    May 26, 2021 at 0:32
  • I have added some configs of Apache. What others would you like to see? Thx
    – Maty
    May 26, 2021 at 7:37

1 Answer 1


Ok so I resolved the problem. The only thing I had to do was removing the CSP header from SSL apache config file. Since then it works normally. TIP for everyone: Check developers console

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