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TWiki System Requirements

Server and client requirements

Low client and server base requirements are core features that keep TWiki widely deployable, particularly across a range of browser platforms and versions. Many Plugins and contrib modules exist which enhance and expand TWiki's capabilities; they may have additional requirements.

On this page:

Server Requirements

TWiki is written in Perl 5, uses a number of shell commands, and requires RCS (Revision Control System), a GNU Free Software package. TWiki is developed in a basic Linux/Apache environment. It also works with Microsoft Windows, and should have no problem on any other platform that meets the requirements.

Resource Required Server Environment *Sorted ascending
Cron/scheduler • Unix: cron
• Windows: cron equivalents
RCS 5.7 or higher (including GNU diff)
Optional, TWiki includes a pure Perl implementation of RCS that can be used instead (although it's slower)
Perl 5.8.0 or higher (5.8.4 or higher is recommended)
Web server Apache is well supported; see TWiki:TWiki.InstallingTWiki#OtherWebServers for other servers
GNU patch For upgrades only: GNU patch is required when using the TWiki:Codev.UpgradeTWiki script
GNU diff GNU diff 2.7 or higher is required when not using the all-Perl RcsLite.
Install on PATH if not included with RCS (check version with diff -v)
Must be the version used by RCS, to avoid problems with binary attachments - RCS may have hard-coded path to diff
GNU fgrep, egrep Modify command line parameters in configure if you use non-GNU grep programs
GNU df Used by the site statistics to record disk usage statistics, optional. The df command is pre-installed on Linux and OS-X. On Windows install the CoreUtils for Windows.
zip Zip archive command line utility. Used by the BackupRestorePlugin to create and restore from backups.

Required CPAN Modules

Most of the CPAN libraries listesd below are part of a standard Perl installation so you most likely have them all!

See TWiki:TWiki.HowToInstallCpanModules for detailed information on how to install CPAN libraries

The following Perl CPAN modules are used by TWiki:

Module Preferred version Comment
Algorithm::Diff   Included in TWiki distribution
CGI >=3.18 Versions 2.89 and 3.37 must be avoided. Most version from 3.15 and onwards should work.
CGI::Carp >=1.26  
Config >=0  
Cwd >=3.05  
Data::Dumper >=2.121  
Encode >=2.1  
Error   Included in TWiki distribution
File::Copy >=2.06  
File::Find >=1.05  
File::Spec >=3.05  
File::Temp >=0.18 This version included in Perl 5.9.5. File::Temp needs to be updated on RedHat 5 and CentOS 5.
FileHandle >=2.01  
HTML::Parser >=3.28 Needed by the WysiwygPlugin for WYSIWYG editing
HTML::Entities >=1.25 Needed by the WysiwygPlugin for WYSIWYG editing
IO::File >=1.10  
Net::SMTP >=2.29 Used for sending mail
Text::Diff   Included in TWiki distribution
Time::Local >=1.11  

Optional CPAN Modules

The following Perl modules may be used by TWiki:

See TWiki:TWiki.HowToInstallCpanModules for detailed information on how to install CPAN libraries

Module Preferred version Description
Archive::Tar   May be required by the Extensions Installer in configure if command line tar or unzip is not available
Authen::SASL   Used for SMTP Authentication
CGI::Cookie >=1.24 Used for session support
CGI::Session >=3.95 Used for session support
Crypt::SMIME >=0.09 Required if S/MIME-signed administrative e-mail is enabled.
Digest::base    
Digest::SHA1    
Locale::Maketext::Lexicon >=0 Used for I18N support
Net::SMTP >=2.29 Used for sending mail
URI   Used for configure

Most of them will probably already be available in your installation. You can check version numbers with the configure script, or if you're still trying to get to that point, check from the command line like this: 

perl -e 'use FileHandle; print $FileHandle::VERSION."\n"'

Client Requirements

The TWiki standard installation has relatively low browser requirements:

  • HTML 3.2 compliant
  • Cookies, if persistent sessions are required

CSS and Javascript are used in most skins, although there is a low-fat skin (Classic skin) available that minimizes these requirements. Some skins will require more recent releases of browsers. The default skin (Pattern) is tested on IE 6, Safari, and Mozilla 5.0 based browsers (such as Firefox).

You can easily select a balance of browser capability versus look and feel. Try the installed skins at TWikiSkinBrowser and more at TWiki:Plugins.SkinPackage.

Important note about TWiki Plugins

  • Plugins can require just about anything - browser-specific functions, stylesheets (CSS), Java applets, cookies, specific Perl modules,... - check the individual Plugin specs.

Related Topics: AdminDocumentationCategory

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Topic revision: r41 - 2013-09-25 - TWikiContributor
 
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