Enable different Apache modules

LDAP

Bitnami stacks already ship the LDAP module installed in Apache but it is not enabled by default. To enable this module, follow these steps:

• Enable the LDAP module. Edit the main Apache configuration file located at installdir/apache2/conf/httpd.conf. Uncomment the mod_authnz_ldap line and add the mod_ldap line at the end of the LoadModule section:

  ...
  LoadModule authnz_ldap_module modules/mod_authnz_ldap.so
  ...
  LoadModule ldap_module modules/mod_ldap.so
  

• Restart Apache server and check it is already enabled:

  $ sudo installdir/ctlscript.sh restart apache
  $ installdir/apache2/bin/apachectl -M | grep ldap
  ...
  authnz_ldap_module (shared)
  ldap_module (shared)
  ...
  

mod_evasive

Follow these steps:

• Download the latest version:

  $  git clone https://github.com/jzdziarski/mod_evasive/
  

• Build, configure and install the module:

  $ cd mod_evasive
  $ cp mod_evasive{20,24}.c
  $ sed s/remote_ip/client_ip/g -i mod_evasive24.c
  $ sudo apxs -i -a -c mod_evasive24.c
  

• Update the Apache module configuration:

  $ sudo sed 's@Include "installdir/apache2/conf/bitnami/bitnami.conf"@Include "installdir/apache2/conf/bitnami/bitnami.conf"\nInclude "installdir/apache2/conf/modevasion.conf"@' -i installdir/apache2/conf/httpd.conf
  $ sudo tee installdir/apache2/conf/modevasion.conf <<EOF
  #increases size of hash table. Good, but uses more RAM."
  DOSHashTableSize    3097"
  #Interval, in seconds, of the page interval."
  DOSPageInterval     1"
  #Interval, in seconds, of the site interval."
  DOSSiteInterval     1"
  #period, in seconds, a client is blocked.  The counter is reset to 0 with every access within this interval."
  DOSBlockingPeriod   10"
  #threshold of requests per page, per page interval.  If hit == block."
  DOSPageCount        2"
  #threshold of requests for any object by the same ip, on the same listener, per site interval."
  DOSSiteCount        50"
  #locking mechanism prevents repeated calls.  email can be sent when host is blocked (leverages the following by default "/bin/mail -t %s")"
  DOSEmailNotify      mbrown@domainy.com"
  #locking mechanism prevents repeated calls.  A command can be executed when a host is blocked.  %s is the host IP."
  #DOSSystemCommand    \"su - someuser -c \'/sbin/... %s ...\'\""
  #DOSLogDir           \"/var/lock/mod_evasive\""
  #whitelist an IP., leverage wildcards, not CIDR, like 127.0.0.*"
  #DOSWhiteList 127.0.0.1"
  EOF
  

• Restart Apache:

  $ sudo installdir/ctlscript.sh restart apache
  

mod_proxy_html

Follow these steps:

• Download the latest version:

  $ wget http://apache.webthing.com/mod_proxy_html/mod_proxy_html.tar.bz2
  

• Extract the content and install the module:

  $ tar -jxf mod_proxy_html.tar.bz2
  $ cd mod_proxy_html/
  $ sudo apxs -c -I installdir/common/include/libxml2 -I. -i mod_proxy_html.c
  $ sudo chmod 755 installdir/apache2/modules/mod_proxy_html.so
  $ sudo apxs -c -I installdir/common/include/libxml2 -I. -i mod_xml2enc.
  $ sudo chmod 755 installdir/apache2/modules/mod_xml2enc.so
  

• Enable the module by including the lines below in the installdir/apache2/conf/httpd.conf configuration file:

  LoadFile installdir/common/lib/libxml2.so
  LoadModule proxy_html_module modules/mod_proxy_html.so
  LoadModule xml2enc_module modules/mod_xml2enc.so
  

mod_rpaf

Follow these steps:

• Download the latest version:

  $ wget https://github.com/gnif/mod_rpaf/archive/stable.zip
  

• Extract the contents and install the module:

  $ unzip stable.zip
  $ cd mod_rpaf-stable
  $ sudo make
  $ sudo make install
  

• Check that the mod_rpaf.so file exists in the installdir/apache2/modules directory:

  $ ll installdir/apache2/modules/mod_rpaf.so
  

• Load and configure the module. A configuration example follows; this can be added to the Apache configuration file at installdir/apache2/conf/httpd.conf.

  LoadModule              rpaf_module modules/mod_rpaf.so
  RPAF_Enable             On
  RPAF_ProxyIPs           127.0.0.1 10.0.0.0/24
  RPAF_SetHostName        On
  RPAF_SetHTTPS           On
  RPAF_SetPort            On
  RPAF_ForbidIfNotProxy   Off
  

• Restart Apache to reload the new configuration:

  $ sudo installdir/ctlscript.sh restart apache
  

mod_security

Bitnami stacks already ship the mod_security2 module installed in Apache but it is not enabled by default. To enable this module, follow these steps:

• Enable the mod_security2 and mod_unique_id modules in Apache. Edit the main Apache configuration file and uncomment the unique_id_module and add the mod_security line at the end of the LoadModule section:

  ...
  LoadModule unique_id_module modules/mod_unique_id.so
  ...
  LoadModule security2_module modules/mod_security2.so
  

• Add the default configuration file for mod_security at the end of the Apache configuration file:

  Include "installdir/apache2/conf/modsecurity.conf"
  

• Restart Apache server and check it is already enabled:

  $ sudo installdir/ctlscript.sh restart apache
  $ tail installdir/apache2/logs/error_log
  
  ...
   [Thu Jan 30 18:42:14.004246 2014] [:notice] [pid 1127] ModSecurity for Apache/2.6.7 (http://www.modsecurity.org/) configured.
  ...
  

mod_xsendfile

Bitnami LAMP/MAMP/WAMP stacks b5.4.13-2 and later include the mod_xsendfile module. To enable this module, add the following line in the Apache configuration file:

LoadModule xsendfile_module modules/mod_xsendfile.so

If you are using an older version, it is easy to install this module into your existing Apache server. If you are using a native installer, you must install the necessary compilation tools first. Follow these steps:

• Download the latest version:

  $ wget https://tn123.org/mod_xsendfile/mod_xsendfile-0.12.tar.gz
  

• Extract the content and install the module:

  $ tar -xzvf mod_xsendfile-0.12.tar.gz
  $ cd mod_xsendfile-0.12
  $ sudo installdir/apache2/bin/apxs -aci mod_xsendfile.c
  

If everything goes well, the module will be installed to installdir/apache2/modules/mod_xsendfile.so. Check the mod_xsenfile configuration page to find out how to configure this module for your application.

mod_http2

Bitnami stacks ship with the mod_http2 module installed, but it is not enabled by default. To enable this module, follow these steps:

• Edit the main Apache configuration file at installdir/apache2/conf/httpd.conf and uncomment the line below so that it looks like this:

  ...
  LoadModule http2_module modules/mod_http2.so
  

• Restart Apache and confirm that the module is active:

  $ sudo installdir/ctlscript.sh restart apache
  $ sudo apachectl -M | grep http2