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(itstool) path: sect2/indexterm
<primary>web servers</primary> <secondary>dynamic</secondary>
Context English Persian State
Start the process by enabling the <acronym>http</acronym>2 module by uncommenting the line in <filename>/usr/local/etc/apache24/httpd.conf</filename> and replace the mpm_prefork module with mpm_event as the former does not support <acronym>HTTP</acronym>2.
LoadModule http2_module libexec/apache24/
LoadModule mpm_event_module libexec/apache24/
There is a separate <filename role="port">mod_http2</filename> port that is available. It exists to deliver security and bug fixes quicker than the module installed with the bundled <filename role="port">apache24</filename> port. It is not required for <acronym>HTTP</acronym>2 support but is available. When installed, the <filename></filename> should be used in place of <filename></filename> in the <application>Apache</application> configuration.
There are two methods to implement <acronym>HTTP</acronym>2 in <application>Apache</application>; one way is globally for all sites and each VirtualHost running on the system. To enable <acronym>HTTP</acronym>2 globally, add the following line under the ServerName directive:
Protocols h2 http/1.1
To enable <acronym>HTTP</acronym>2 over plaintext, use <acronym>h2</acronym> <acronym>h2c</acronym> <acronym>http</acronym>/1.1 in the <filename>httpd.conf</filename>.
Having the <acronym>h2c</acronym> here will allow plaintext <acronym>HTTP</acronym>2 data to pass on the system but is not recommended. In addition, using the <acronym>http</acronym>/1.1 here will allow fallback to the <acronym>HTTP</acronym>1.1 version of the protocol should it be needed by the system.
To enable <acronym>HTTP</acronym>2 for individual VirtualHosts, add the same line within the VirtualHost directive in either <filename>httpd.conf</filename> or <filename>httpd-ssl.conf</filename>.
Reload the configuration using the <command>apachectl</command> <parameter>reload</parameter> command and test the configuration either by using either of the following methods after visiting one of the hosted pages:
<prompt>#</prompt> <userinput>grep "HTTP/2.0" /var/log/httpd-access.log</userinput> <prompt>%</prompt> <userinput>top</userinput>
This should return something similar to the following: - - [18/Oct/2020:18:34:36 -0400] "GET / HTTP/2.0" 304 - - - [18/Oct/2020:19:19:57 -0400] "GET / HTTP/2.0" 304 - - - [18/Oct/2020:19:20:52 -0400] "GET / HTTP/2.0" 304 - - - [18/Oct/2020:19:23:10 -0400] "GET / HTTP/2.0" 304 -
The other method is using the web browser's built in site debugger or <command>tcpdump</command>; however, using either method is beyond the scope of this document.
Support for <acronym>HTTP</acronym>2 reverse proxy connections by using the <filename></filename> module. When configuring the ProxyPass or RewriteRules [P] statements, they should use h2:// for the connection.
Dynamic Websites
<primary>web servers</primary> <secondary>dynamic</secondary>
In addition to <application>mod_perl</application> and <application>mod_php</application>, other languages are available for creating dynamic web content. These include <application>Django</application> and <application>Ruby on Rails</application>.
<application>Django</application> is a BSD-licensed framework designed to allow developers to write high performance, elegant web applications quickly. It provides an object-relational mapper so that data types are developed as <application>Python</application> objects. A rich dynamic database-access <acronym>API</acronym> is provided for those objects without the developer ever having to write <acronym>SQL</acronym>. It also provides an extensible template system so that the logic of the application is separated from the <acronym>HTML</acronym> presentation.
Django depends on <filename>mod_python</filename>, and an <acronym>SQL</acronym> database engine. In FreeBSD, the <package>www/py-django</package> port automatically installs <filename>mod_python</filename> and supports the <application>PostgreSQL</application>, <application>MySQL</application>, or <application>SQLite</application> databases, with the default being <application>SQLite</application>. To change the database engine, type <command>make config</command> within <filename>/usr/ports/www/py-django</filename>, then install the port.
Once <application>Django</application> is installed, the application will need a project directory along with the <application>Apache</application> configuration in order to use the embedded <application>Python</application> interpreter. This interpreter is used to call the application for specific <acronym>URL</acronym>s on the site.
To configure <application>Apache</application> to pass requests for certain <acronym>URL</acronym>s to the web application, add the following to <filename>httpd.conf</filename>, specifying the full path to the project directory:
&lt;Location "/"&gt;
SetHandler python-program
PythonPath "['<replaceable>/dir/to/the/django/packages/</replaceable>'] + sys.path"
PythonHandler django.core.handlers.modpython
SetEnv DJANGO_SETTINGS_MODULE mysite.settings
PythonAutoReload On
PythonDebug On
Refer to <uri xlink:href=""></uri> for more information on how to use <application>Django</application>.
Ruby on Rails
<primary>Ruby on Rails</primary>
<application>Ruby on Rails</application> is another open source web framework that provides a full development stack. It is optimized to make web developers more productive and capable of writing powerful applications quickly. On FreeBSD, it can be installed using the <package>www/rubygem-rails</package> package or port.
Refer to <uri xlink:href=""></uri> for more information on how to use <application>Ruby on Rails</application>.
File Transfer Protocol (<acronym>FTP</acronym>)


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(itstool) path: sect2/indexterm
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a year ago
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books/fa/handbook.po, string 9615