Manual:Installation requirements/da

Ud over selve softwaren, forudsætter en standard MediaWiki-installation følgende systemkrav:


 * En webserver til at sende de genererede sider til din webbrowser.
 * PHP for at køre softwaren.
 * En database-server for at gemme sider og webstedsdata.

Derudover er der forskellige valgfrie krav, som er forudsat ved brug af visse avancerede funktioner (se nedenfor).

If your website is hosted (i.e. you don't have direct control over it) then contact your server administrator or hosting company to ensure these software packages are installed and available.

= == Simple one-download installation == =

Use XAMPP from http://www.apachefriends.org to install and configure all of the important packages – Apache web server, PHP, and MySQL database – with only one download. It is available for Linux, Windows, Mac and Solaris. As of August 2015, the latest version of XAMPP includes PHP 5.6.12 (MediaWiki requires at least ).

= == Webserver == =

For at sende de genererede sider til din browser, kræver MediaWiki noget webserver-software. Ofte har du ikke noget valg mellem hvilken software der skal bruges - det vil være den, der leveres af din webhotel-udbyder.


 * De fleste installationer bruger [//httpd.apache.org Apache] webserver, som kan hentes på [//httpd.apache.org/download.cgi den officielle download side].
 * MediaWiki er også blevet testet under [//microsoft.com/iis IIS 6.0], [//0x50.org/ Cherokee], [//hiawatha-webserver.org/ Hiawatha], [//litespeedtech.com/litespeed-web-server-downloads.html Litespeed Standard] (kræver et trick for math/da) og [//lighttpd.net lighttpd].

= == PHP == =

PHP er programmeringssproget, som MediaWiki er skrevet i og som kræves for at køre softwaren.

Bemærk at selvom MediaWiki udgives med installations-script der leverer web-baseret konfiguration af de vigtigste elementer, er et vist kendskab til PHP nødvendig for mere detaljerede tilpasninger.

[//php.net/pcre Perl Compatible Regular Expressions] (v4.0+), [//php.net/session Session] og [//php.net/spl Standard PHP Library].
 * Til den seneste stabile version af MediaWiki kræves [//php.net/downloads.php PHP version eller nyere].
 * Hvis du ikke er i stand til at opgradere til PHP5, så du kan bruge den gamle MediaWiki, som ikke supporteres længere, og som kræver [//php.net/downloads.php#v4 PHP version 4.3.0 eller nyere]
 * Følgende udvidelser er påkrævet:
 * Session
 * Standard PHP Library
 * JSON (since 1.22).

Bemærk, at alle disse er aktiveret i PHP som standard. I Debian & Ubuntu er dette indbygget i php5-intl-pakken.
 * MediaWiki installationsprogrammet vil advare, hvis du ikke har den valgfrie [//php.net/intl.setup PHP intl extension] 'til at håndtere Unicode normalisering'.
 * På Ubuntu er (bl.a.) php5-mysql pakken påkrævet, hvis du vil have MediaWiki til at bruge MySQL.
 * Hvis du installerer MediaWiki på CentOS 5.6 skal du bruge php53 pakken i stedet for php, som indeholder PHP 5.1.x, der ikke er foreneligt med den nyeste version af MediaWiki.
 * If you are installing MediaWiki on Red Hat Enterprise Linux 6.4 (CentOS 6.4), you will need to install the php-xml package in addition to the normal php package.
 * Some features of MediaWiki may require PHP functions that execute external processes, like image thumbnailing, that some cheap hosts usually disable. This has surfaced specially in MediaWiki 1.23 on file uploads . Please take this into consideration if you plan to install MediaWiki on a shared host.
 * MediaWiki extensions may require additional PHP features, e.g. VisualEditor requires libcurl support (php5-curl on Debian/Ubuntu-based distros).

If you need to compile PHP from source, then see PHP configuration for compilation options that affect MediaWiki.


 * Some servers may also require the equivalent database module and session management module be installed. See individual operating system instructions for more information.
 * When installing on Windows using the Microsoft installer, add the extension for your database of choice (MySQL or Postgres) to the features to be installed.

= == Database server == =

MediaWiki stores all the text and data (content pages, user details, system messages, etc.) in a database, which it is capable of sharing with other web-based applications (phpBB, etc.). You will need one of the following database servers to run the latest version of MediaWiki:


 * MySQL or later* or MariaDB 5.1+
 * PostgreSQL or later (supported since MediaWiki 1.8). See Manual:Installing MediaWiki for more detail.
 * SQLite 3
 * Oracle (Oracle is currently unsupported on the latest MediaWiki versions due to open blocking bugs)

Some users find it helpful to install an additional software package such as phpMyAdmin (MySQL) or phpPgAdmin (Postgres) to help administer the database server.

MySQL 5 has been required since MediaWiki 1.19. MySQL 4 was required starting with MediaWiki 1.6. (If you are using an ancient version of MySQL and cannot upgrade then you need to use MediaWiki 1.5.8, but this version is not supported.)

= == Hardware requirements == =

The recommended minimum requirements are 256MB of RAM for a single-computer website and 85MB of storage, although this will not suffice for a busy public site or a site with uploading enabled. Some users have reported running MediaWiki on computers with as little as 48MB of RAM.

The install size can be reduced to around 50Mb for a developer install and to around 26Mb for a non-developer, end-user install. See Manual:Reduce size of the installation

= == Optional dependencies == =

Other software

 * ImageMagick or GD is required for image thumbnailing.
 * TeX is required for inline display of mathematical formulae. In most Debian/Ubuntu-based distros, this is in the texlive package.
 * Sendmail is required in order for the system to be able to send e-mails.
 * Shell access is required to run maintenance scripts; upgrading MediaWiki may be more difficult without it.

For further information about the above items, see Manual:Installing third-party tools.

VisualEditor
The VisualEditor extension (and also the Flow extension) requires the Parsoid web service, which is implemented using Node.js. Node.js is not provided by most shared-hosting companies (HostGator, Bluehost, Dreamhost, etc.). For performance and security reasons, it is better to use a dedicated hosting solution such as a Virtual private server ("VPS").

Scribunto
If you want to invoke Lua modules (see those on this wiki) from wiki pages and templates, your wiki will also require Scribunto.