Use this page to set the configuration options for TWiki. Fill in the settings, and then press 'Next'.

Explanation of colours and symbols:
  • Settings marked like this are required (they must have a value).
  • Any errors in your configuration will be highlighted.
  • Warnings are non-fatal, but are often a good indicator that something that is wrong.
  • The little δ after an entry means that the current value is not the same as the default value. If you hover the cursor over the δ, a popup will show you what the default value is.
  • EXPERT means a setting is for expert use only. You should not fiddle with it unless you know what you are doing, or at least have read all the documentation. EXPERT options are hidden unless you click the
SettingsClick the buttons below to open each section Open all options
Environment variables(read only)
HTTP_IF_MODIFIED_SINCESun, 26 Jan 2020 00:34:37 CET
Apache/2.2.15 (CentOS) Server at Port 80
SERVER_SOFTWAREApache/2.2.15 (CentOS)
CGI Setup(read only)
Operating systemLinux 3.10.0-514.10.2.el7.x86_64 (i386-linux-thread-multi)
Perl version5.010001 (linux)

Note that by convention "Perl version 5.008" is referred to as "Perl version 5.8" and "Perl 5.008004" as "Perl 5.8.4" (i.e. ignore the leading zeros after the .)

@INC library path/var/www/sharp_twiki/twiki/lib

This is the Perl library path, used to load TWiki modules, third-party modules used by some plugins, and Perl built-in modules.

CGI bin directory/home/www/sharp_twiki/twiki/bin
TWiki module in @INC (Version: TWiki-4.2.1, Sun, 03 Aug 2008, build 17311) found
Perl modules

0.89 installed

Desc: for base TWiki

3.51 installed

Desc: for base TWiki (Versions 2.89 and 3.37 must be avoided. Most version from 3.15 and onwards should work.)

1.11 installed

Desc: for base TWiki

Unknown version installed

Desc: for base TWiki

3.3 installed

Desc: for base TWiki

2.124 installed

Desc: for base TWiki

0.17015 installed

Desc: for base TWiki

5.63 installed

Desc: for base TWiki

2.02 installed

Desc: for base TWiki

2.77 installed

Desc: for base TWiki

1.06 installed

Desc: for base TWiki

2.08 installed

Desc: for base TWiki

3.3 installed

Desc: for base TWiki

0.22 installed

Desc: for base TWiki

1.50 installed

Desc: required if you want to use the Extensions Installer in configure

3.08 installed

Desc: for base TWiki

1.17 installed

Desc: for base TWiki

1.82 installed

Desc: for base TWiki

Not installed. may be required by the Extensions Installer in configure if command line tar or unzip is not available


1.30 installed

Desc: required for Sessions support, available from the CPAN archive.

4.35 installed

Desc: required for Sessions support, available from the CPAN archive.

0.49 installed

Desc: may be required for international characters

2.31 installed

Desc: may be required for sending mail

Not installed. may be required for ApacheHtpasswd password manager


2.39 installed

Desc: may be required for password encryption

Not installed. may be required for password encryption


2.35 installed

Desc: may be required for international characters

Not installed. may be required for international characters


2.38 installed

Desc: may be required for international characters

0.02 installed

Desc: may be required for international characters

Not installed. may be required for generating new language files


1.07 installed

Desc: may be required for international characters

Not installed. may be required for international characters


Not installed. may be required for Windows


For a URL such as, the correct PATH_INFO is /foo/bar, without any prefixed path components. Test PATH_INFO now - particularly if you are using mod_perl, Apache or IIS, or are using a web hosting provider. Look at the new path info here. It should be /foo/bar.

mod_perlNot used for this script

mod_perl is not loaded into Apache

CGI useruserid = root groups = apache,apache

Your CGI scripts are executing as this user.

Original PATH/sbin:/usr/sbin:/bin:/usr/bin

This is the PATH value passed in from the web server to this script - it is reset by TWiki scripts to the PATH below, and is provided here for comparison purposes only.

Current PATH/sbin:/usr/sbin:/bin:/usr/bin

This is the actual PATH setting that will be used by Perl to run programs. It is normally identical to {SafeEnvPath}, unless that variable is empty, in which case this will be the webserver user's standard path..

General path settings
If you are a first-time installer; once you have set up the next six paths below, your TWiki should work - try it. You can always come back and tweak other settings later.

Security Note: Only the URL paths listed below should be browseable from the web. If you expose any other directories (such as lib or templates) you are opening up routes for possible hacking attempts.

This is the root of all TWiki URLs e.g.
If your host has aliases (such as both and, and some IP addresses) you need to list them to tell TWiki that redirecting to them is OK. TWiki uses redirection as part of its normal mode of operation when it changes between editing and viewing. The security setting {AllowRedirectUrl} is per default disabled making redirecting to other domains restricted to prevent TWiki from being used in phishing attacks to protect it from middleman exploits. You can add additional URLs to this setting to enable redirects to additional trusted sites. Enter as comma separated list of URLs or hostnames. The URL must be in the format
This is the 'cgi-bin' part of URLs used to access the TWiki bin directory e.g. /twiki/bin
Do not include a trailing /.

See for more information on setting up TWiki to use shorter script URLs.

Attachments URL path e.g. /twiki/pub

Security Note: files in this directory are *not* protected by TWiki access controls. If you require access controls, you will have to use webserver controls (e.g. .htaccess on Apache) This is not set correctly if the link below is broken:
Go to "pub" directory

Attachments store (file path, not URL), must match /twiki/pub e.g. /usr/local/twiki/pub
Template directory e.g. /usr/local/twiki/templates
Topic files store (file path, not URL) e.g. /usr/local/twiki/data
Translation files directory (file path, not URL) e.g. /usr/local/twiki/locales
Directory where TWiki stores files that are required for the management of TWiki, but are not normally required to be browsed from the web. A number of subdirectories will be created automatically under this directory:
  • {WorkingDir}/tmp/ - used for security-related temporary files (these files can be deleted at any time without permanent damage)
    • Passthrough files are used by TWiki to work around the limitations of HTTP when redirecting URLs
    • Session files are used to record information about active users - for example, whether they are logged in or not.
    For obvious reasons, these files must not be browseable from the web! Additionally you are recommended to restrict access rights to this directory so only the web server user can create files.
  • {WorkingDir}/work_areas - these are work areas used by extensions that need to store data on the disc
  • {WorkingDir}/registration_approvals - this is used by the default TWiki registration process to store registrations that are pending verification.
Suffix of TWiki CGI scripts (e.g. .cgi or .pl). You may need to set this if your webserver requires an extension.
Security setup


Path control. If set, overrides the default PATH setting to control where TWiki looks for programs. By restricting this path to just a few key directories, you increase the security of your TWiki. If security is not an issue, leave the setting blank.
  1. Unix or Linux
    • Path separator is :
    • Make sure diff and shell (Bourne or bash type) are found on path.
    • Typical setting is /bin:/usr/bin
  2. Windows ActiveState Perl, using DOS shell
    • path separator is ;
    • The Windows system directory is required.
    • Use '\' not '/' in pathnames.
    • Typical setting is C:\windows\system32
  3. Windows Cygwin Perl
    • path separator is :
    • The Windows system directory is required.
    • Use '/' not '\' in pathnames.
    • Typical setting is /cygdrive/c/windows/system32


You can use persistent CGI session tracking even if you are not using login. This allows you to have persistent session variables - for example, skins. Client sessions are not required for logins to work, but TWiki will not be able to remember logged-in users consistently. See TWiki.TWikiUserAuthentication for a full discussion of the pros and cons of using persistent sessions. Session files are stored in the {WorkingDir}/tmp directory.
Set the session timeout, in seconds. The session will be cleared after this amount of time without the session being accessed. The default is 6 hours (21600 seconds).

NoteBy default, session expiry is done "on the fly" by the same processes used to serve TWiki requests. As such it imposes a load on the server. When there are very large numbers of session files, this load can become significant. For best performance, you can set {Sessions}{ExpireAfter} to a negative number, which will mean that TWiki won't try to clean up expired sessions using CGI processes. Instead you should use a cron job to clean up expired sessions. The standard maintenance cron script tools/ includes this function.

TemplateLogin only. Normally the cookie that remembers a user session is set to expire when the browser exits, but using this value you can make the cookie expire after a set number of seconds instead. If you set it then users will be able to tick a 'Remember me' box when logging in, and their session cookie will be remembered even if the browser exits.

This should always be the same as, or longer than, {Sessions}{ExpireAfter}, otherwise TWiki may delete the session from its memory even though the cookie is still active.

A value of 0 will cause the cookie to expire when the browser exits. One month is roughly equal to 2600000 seconds.

If you have persistent sessions enabled, then TWiki will use a cookie in the browser to store the session ID. If the client has cookies disabled, then TWiki will not be able to record the session. As a fallback, TWiki can rewrite local URLs to pass the session ID as a parameter to the URL. This is a potential security risk, because it increases the chance of a session ID being stolen (accidentally or intentionally) by another user. If this is turned off, users with cookies disabled will have to re-authenticate for every secure page access (unless you are using {Sessions}{MapIP2SID}).
It's important to check that the user trying to use a session is the same user who originally created the session. TWiki does this by making sure, before initializing a previously stored session, that the IP address stored in the session matches the IP address of the user asking for that session. Turn this off if a client IP address may change during the lifetime of a session (unlikely)
For compatibility with older versions, TWiki supports the mapping of the clients IP address to a session ID. You can only use this if all client IP addresses are known to be unique. If this option is enabled, TWiki will not store cookies in the browser. The mapping is held in the file $TWiki::cfg{WorkingDir}/tmp/ip2sid. If you turn this option on, you can safely turn {Sessions}{IDsInURLs} off.


TWiki supports different ways of responding when the user asks to log in (or is asked to log in as the result of an access control fault). They are:
  1. none - Don't support logging in, all users have access to everything.
  2. TWiki::LoginManager::TemplateLogin - Redirect to the login template, which asks for a username and password in a form. Does not cache the ID in the browser, so requires client sessions to work.
  3. TWiki::LoginManager::ApacheLogin - Redirect to an '...auth' script for which Apache can be configured to ask for authorization information. Does not require client sessions, but works best with them enabled.
The perl regular expression used to constrain user login names. Some environments may require funny characters in login names, such as \. This is a filter in expression i.e. a login name must match this expression or an error will be thrown and the login denied.
Guest user's login name. You are recommended not to change this.
Guest user's wiki name. You are recommended not to change this.
An internal admin user login name (matched with the configure password, if set) which can be used as a temporary Admin login (see: Main.TWikiAdminUser). This login name is additionally required by the install script for some addons and plugins, usually to gain write access to the TWiki web. If you change this you risk making topics uneditable.
An admin user WikiName what is displayed for actions done by the AdminUserLogin You should normally not need to change this. (you will need to move the %USERSWEB%.TWikiAdminUser topic to match)
Group of users that can use special action=repRev and action=delRev on =save= and ALWAYS have edit powers. See TWiki.TWikiDocumentation for an explanation of twiki groups. This user will also run all the standard cron jobs, such as statistics and mail notification. The default value "TWikiAdminGroup" is used everywhere in TWiki to protect important settings so you would need a really special reason to change this setting.
Name of topic in the {UsersWebName} web where registered users are listed. Automatically maintained by the standard registration scripts. If you change this setting you will have to use TWiki to manually rename the existing topic
Comma-separated list of scripts that require the user to authenticate. With TemplateLogin, any time an unauthenticated user attempts to access one of these scripts, they will be redirected to the login script. With ApacheLogin, they will be redirected to the logon script (note login and logon; they are different scripts). This approach means that only the logon script needs to be specified as require valid-user when using Apache authentication.

If you want finer access control (e.g. authorised users only in one web but open access in another) then you should *clear* this list, and use TWiki Permissions to control access. Users wishing to make changes will have to log in by clicking a "log in" link instead of being automatically redirected when they try to edit.

Authentication realm. This is normally only used in md5 password encoding. You may need to change it if you are sharing a password file with another application.

User Mapping

The user mapping is used to equate login names, used with external authentication systems, with TWiki user identities. By default only two mappings are available, though other mappings *may* be installed to support authentication providers.
  1. TWiki::Users::TWikiUserMapping - uses TWiki user and group topics to determine user information, and group memberships.
  2. TWiki::Users::BaseUserMapping - has only 2 users, {TWikiAdminUser} and {TWikiGuestUser}, with the Admins login and password being set from this configure script. Does not support User registration, and only works with TemplateLogin.


If you want users to be able to use a login ID other than their wikiname, you need to turn this on. It controls whether the 'LoginName' box appears during the user registration process, and is used to tell the User Mapping module whether to map login names to wikinames or not (if it supports mappings, that is).
If a login name (or an internal user id) cannot be mapped to a wikiname, then the user is unknown. By default the user will be displayed using whatever identity is stored for them. For security reasons you may want to obscure this stored id by setting this option to true.
by turning this option off, you can temporarily disable new user registration. it will have no effect on existing users.
Hide password in registration email to the *user* Note that TWiki sends admins a separate confirmation.
Whether registrations must be verified by the user following a link sent in an email to the user's registered email address


Name of the password handler implementation. The password handler manages the passwords database, and provides password lookup, and optionally password change, services. TWiki ships with two alternative implementations:
  1. TWiki::Users::HtPasswdUser - handles 'htpasswd' format files, with passwords encoded as per the HtpasswdEncoding
  2. TWiki::Users::ApacheHtpasswdUser - should behave identically to HtpasswdUser, but uses the CPAN:Apache::Htpasswd package to interact with Apache. It is shipped mainly as a demonstration of how to write a new password manager.
You can provide your own alternative by implementing a new subclass of TWiki::Users::Password, and pointing {PasswordManager} at it in lib/LocalSite.cfg.

If 'none' is selected, users will not be able to change passwords and TemplateLogin manager then will always succeed, regardless of what username or password they enter. This may be useful when you want to enable logins so TWiki can identify contributors, but you don't care about passwords. Using ApacheLogin and PassordManager set to 'none' (and AllowLoginName = true) is a common Enterprise SSO configuration, in which any logged in user can then register to create their TWiki Based identity.

Minimum length for a password, for new registrations and password changes. If you want to allow null passwords, set this to 0.
Path to the file that stores passwords, for the TWiki::Users::HtPasswdUser password manager. You can use the htpasswd Apache program to create a new password file with the right encoding.
Password encryption, for the TWiki::Users::HtPasswdUser password manager. You can use the htpasswd Apache program to create a new password file with the right encoding.
is the default, and should be used on Linux/Unix.
is recommended for use on Windows.
may be useful on sites where password files are required to be portable. In this case, the {AuthRealm} is used with the username and password to generate the encrypted form of the password, thus: user:{AuthRealm}:password. Take note of this, because it means that if the {AuthRealm} changes, any existing MD5 encoded passwords will be invalidated by the change!
stores passwords as plain text (no encryption).
Enable use of standard libc (/etc/shadow) crypt-md5 password (like $1$saltsalt$hashashhashhashhash...$) which are stronger than the crypt paswords, salted, and the salt is stored in the encrypted password string as in normal crypt passwords.
{OS} and {DetailedOS} are calculated in the TWiki code. You should only need to override if there is something badly wrong with those calculations.
The value of Perl $OS
Remove .. from %INCLUDE{filename}%, to stop includes of relative paths.
Allow %INCLUDE of URLs. This is disabled by default, because it is possible to mount a denial-of-service (DoS) attack on a TWiki site using INCLUDE and URLs. Only enable it if you are in an environment where a DoS attack is not a high risk.
Allow the use of SCRIPT and LITERAL tags in content. If this is set false, all SCRIPT and LITERAL sections will be removed from the body of topics. SCRIPT can still be used in the HEAD section, though. Note that this may prevent some plugins from functioning correctly.
Filter-in regex for uploaded (attached) file names. This is a filter in, so any files that match this filter will be renamed on upload to prevent upload of files with the same file extensions as executables.

NOTE: Be sure to update this list with any configuration or script filetypes that are automatically run by your web server.

Filter-out regex for webnames, topic names, usernames, include paths and skin names. This is a filter out, so if any of the characters matched by this expression are seen in names, they will be removed.
If this is set, the the search module will use more relaxed rules governing regular expressions searches.
Build the path to /twiki/bin from the URL that was used to get this far. This can be useful when rewriting rules or redirection are used to shorten URLs. Note that displayed links are incorrect after failed authentication if this is set, so unless you really know what you are doing, leave it alone.
Draining STDIN may be necessary if the script is called due to a redirect and the original query was a POST. In this case the web server is waiting to write the POST data to this script's STDIN, but won't drain STDIN as it is seeing a GET because of the redirect, not a POST. Enable this only in case a TWiki script hangs.
Remove port number from URL. If set, and a URL is given with a port number e.g., this will strip off the port number before using the url in links.
Allow the use of URLs in the redirectto parameter to the save script, and in topic parameter to the view script. WARNING: Enabling this feature makes it very easy to build phishing pages using the wiki, so in general, public sites should not enable it. Note: It is possible to redirect to a topic regardless of this setting, such as topic=OtherTopic or redirectto=Web.OtherTopic. To enable redirection to a just list of trusted URLs keep this setting disabled and add a list of trusted URL to the {PermittedRedirectHostUrls} setting in the General path settings section.
Defines the filter-in regexp that must match the names of environment variables that can be seen using the %ENV{}% TWiki variable. Set it to '^.*$' to allow all environment variables to be seen (not recommended).
Anti-spam measures
Standard TWiki incorporates some simple anti-spam measures to protect e-mail addresses and control the activities of benign robots. These should be enough to handle intranet requirements. Administrators of public (internet) sites are strongly recommended to investigate the BlackListPlugin
Text added to email addresses to prevent spambots from grabbing addresses e.g. set to 'NOSPAM' to get rendered as
Normally TWiki stores the user's sensitive information (such as their e-mail address) in a database out of public view. It also obfuscates e-mail addresses displayed in the browser. This is to help prevent e-mail spam and identity fraud.
If that is not a risk for you (e.g. you are behind a firewall) and you are happy for e-mails to be made public to all TWiki users, then you can set this option.
Note that if this option is set, then the user parameter to %USERINFO is ignored.
By default, TWiki doesn't do anything to stop robots, such as those used by search engines, from visiting "normal view" pages. If you disable this option, TWiki will generate a META tag to tell robots not to index pages.
Inappropriate pages (like the raw and edit views) are always protected from being indexed.
Note that for full protection from robots you should also use robots.txt (there is an example in the root of your TWiki installation).
Log files
Whether or not to to log different actions in the Access log (in order of how frequently they occur in a typical installation). Information in the Access log is used in gathering web statistics, and is useful as an audit trail of TWiki activity.
File for configuration messages generated by the configure script. (usually very very low volume).
File for debug messages (usually very low volume). %DATE% gets expanded to YYYYMM (year, month), allowing you to rotate logs.
Warnings - low volume, hopefully! %DATE% gets expanded to YYYYMM (year, month), allowing you to rotate logs.
Access log - high volume, depending on what you enabled in {Log} above. %DATE% gets expanded to YYYYMM (year, month), allowing you to rotate logs.

Configuration items in this section control two things: recognition of national (non-ascii) characters and the system locale used by TWiki, which influences how programs TWiki and external programa called by it behave regarding internationalization.

Note: for user interface internationalization, the only settings that matter are {UserInterfaceInternationalisation}, which enables user interface internationalisation, and {Site}{CharSet}, which controls which charset TWiki will use for storing topics and displaying content for the users. As soon as {UserInterfaceInternationalisation} is set and the required (Locale::Maketext::Lexicon and Encode/MapUTF8 Perl modules) are installed (see the CGI Setup section above), the multi-language user interface will just work.

Enable user interface internationalisation, i.e. presenting the user interface in the users own language.

Under {UserInterfaceInternationalisation}, check every language that you want your site to support. This setting is only used when {UserInterfaceInternationalisation} is enabled. If you disable all languages, internationalisation will also be disabled, even if {UserInterfaceInternationalisation} is enabled: internationalisation support for no languages doesn't make any sense.

Allowing all languages is the best for really international sites. But for best performance you should enable only the languages you really need. English is the default language, and is always enabled.

{LocalesDir} is used to find the languages supported in your installation, so if the list below is empty, it's probably because {LocalesDir} is pointing to the wrong place.



Set the timezone (this only effects the display of times, all internal storage is still in GMT). May be gmtime or servertime
Set the default format for dates. The traditional TWiki format is '$day $month $year' (31 Dec 2007). The ISO format '$year-$mo-$day' (2007-12-31) is recommended for non English language TWikis. Note that $mo is the month as a two digit number. $month is the three first letters of English name of the month
Locale - set to enable operating system level locales and internationalisation support for 8-bit character sets
Site-wide locale - used by TWiki and external programs such as grep, and to specify the character set in which content must be presented for the user's web browser.
Note that {Site}{Locale} is ignored unless {UseLocale} is set.
Locale names are not standardised. On Unix/Linux check 'locale -a' on your system to see which locales are supported by your system. You may also need to check what charsets your browsers accept - the 'preferred MIME names' at are a good starting point.
WARNING: Topics are stored in site character set format, so data conversion of file names and contents will be needed if you change locales after creating topics whose names or contents include 8-bit characters.
en_US.ISO-8859-1 - Standard US ISO-8859-1 (default)
de_AT.ISO-8859-15 - Austria with ISO-8859-15 for Euro
ru_RU.KOI8-R - Russia
ja_JP.eucjp - Japan
C - English only; no I18N features regarding character encodings and external programs.
UTF-8 locale like en_US.utf8 is still considered experimental
Disable to force explicit listing of national chars in regexes, rather than relying on locale-based regexes. Intended for Perl 5.6 or higher on platforms with broken locales: should only be disabled if you have locale problems.
If a suitable working locale is not available (i.e. {UseLocale} is disabled), OR you are using Perl 5.005 (with or without working locales), OR {Site}{LocaleRegexes} is disabled, you can use WikiWords with accented national characters by putting any '8-bit' accented national characters within these strings - i.e. {UpperNational} should contain upper case non-ASCII letters. This is termed 'non-locale regexes' mode. If 'non-locale regexes' is in effect, WikiWord linking will work, but some features such as sorting of WikiWords in search results may not. These features depend on {UseLocale}, which can be set independently of {Site}{{LocaleRegexes}, so they will work with Perl 5.005 as long as {UseLocale} is set and you have working locales.
Set this to match your chosen {Site}{Locale} (from 'locale -a') whose character set is not supported by your available perl conversion module (i.e. Encode for Perl 5.8 or higher, or Unicode::MapUTF8 for other Perl versions). For example, if the locale 'ja_JP.eucjp' exists on your system but only 'euc-jp' is supported by Unicode::MapUTF8, set this to 'euc-jp'. If you don't define it, it will automatically be defaulted to iso-8859-1
UTF-8 support is still considered experimental. Use the value 'utf-8' to try it.
Change non-existant plural topic name to singular, e.g. TestPolicies to TestPolicy. Only works in English.
Store settings
Default store implementation.
  • RcsWrap uses normal RCS executables.
  • RcsLite uses a 100% Perl simplified implementation of RCS. RcsLite is useful if you don't have, and can't install, RCS - for example, on a hosted platform. It will work, and is compatible with RCS, but is not quite as fast.
You can manually add options to LocalSite.cfg to select a different store for each web. If $TWiki::cfg{Store}{Fred} is defined, it will be taken as the name of a perl class (which must implement the methods of TWiki::Store::RcsFile). The TWiki::Store::Subversive class is an example implementation using the Subversion version control system as a data store.
Specifies the extension to use on RCS files. Set to -x,v on windows, leave blank on other platforms.
File security for new directories. You may have to adjust these permissions to allow (or deny) users other than the webserver user access to directories that TWiki creates. This is an *octal* number representing the standard UNIX permissions (e.g. 755 == rwxr-xr-x)
File security for new files. You may have to adjust these permissions to allow (or deny) users other than the webserver user access to files that TWiki creates. This is an *octal* number representing the standard UNIX permissions (e.g. 644 == rw-r--r--)
Some file-based Store implementations (RcsWrap and RcsLite for example) store attachment meta-data separately from the actual attachments. This means that it is possible to have a file in an attachment directory that is not seen as an attachment by TWiki. Sometimes it is desirable to be able to simply copy files into a directory and have them appear as attachments, and that's what this feature allows you to do. Considered experimental.
Number of seconds to remember changes for. This doesn't affect revision histories, which always remember the date a file change. It only affects the number of changes that are cached for fast access by the 'changes' and 'statistics' scripts, and for use by extensions such as the change notification mailer. It should be no shorter than the interval between runs of these scripts.
Perl regular expression matching suffixes valid on plain text files Defines which attachments will be treated as ASCII in RCS. This is a filter in, so any filenames that match this expression will be treated as ASCII.
Set this if your RCS cannot check out using the -p option. May be needed in some windows installations (not required for cygwin)
RcsWrap initialise a file as binary. %FILENAME|F% will be expanded to the filename.
RcsWrap initialise a topic file.
RcsWrap uses this on Windows to create temporary binary files during upload.
RcsWrap check-in. %USERNAME|S% will be expanded to the username. %COMMENT|U% will be expanded to the comment.
RcsWrap check in, forcing the date. %DATE|D% will be expanded to the date.
RcsWrap check out. %REVISION|N% will be expanded to the revision number
RcsWrap file history.
RcsWrap revision info about the file.
RcsWrap revision info about the revision that existed at a given date. %REVISIONn|N% will be expanded to the revision number. %CONTEXT|N% will be expanded to the number of lines of context.
RcsWrap differences between two revisions.
RcsWrap lock a file.
RcsWrap unlock a file.
RcsWrap break a file lock.
RcsWrap delete a specific revision.
TWiki RCS has two built-in search algorithms
  1. The default 'Forking' algorithm, which forks a subprocess that runs a 'grep' command,
  2. the 'PurePerl' implementation, which is written in Perl and usually only used as a last resort.
Normally you will be just fine with the 'Forking' implementation. However if you find searches run very slowly, you may want to try a different algorithm, which may work better on your configuration. Note that there is an alternative algorithm available from, that often gives better performance with mod_perl and Speedy CGI.
The standard TWiki algorithm for performing queries is not particularly fast (it is based on plain-text searching). You may be able to select a different algorithm here, depending on what alternative implementations may have been installed.
Full path to GNU-compatible egrep program. This is used for searching when {SearchAlgorithm} is 'TWiki::Store::SearchAlgorithms::Forking'. %CS{|-i}% will be expanded to -i for case-sensitive search or to the empty string otherwise. Similarly for %DET, which controls whether matching lines are required. (see the documentation on these options with GNU grep for details).
Full path to GNU-compatible fgrep program. This is used for searching when {SearchAlgorithm} is 'TWiki::Store::SearchAlgorithms::Forking'.
Set to enable hierarchical webs. Without this setting, TWiki will only allow a single level of webs. If you set this, you can use multiple levels, like a directory tree, i.e. webs within webs. See TWiki.MultiLevelWikiWebs for more details.
Name of the web where documentation and default preferences are held. If you change this setting, you must make sure the web exists and contains appropriate content, and upgrade scripts may no longer work (i.e. don't change it unless you are certain that you know what you are doing!)
Name of the web used as a trashcan (where deleted topics are moved) If you change this setting, you must make sure the web exists.
Name of the web where usertopics are stored. If you change this setting, you must make sure the web exists and contains appropriate content, and upgrade scripts may no longer work (i.e. don't change it unless you are certain that you know what you are doing!)
Mail and Proxies 1 warning
Enable email globally.
TWiki administrator's e-mail address e.g. (used in %WIKIWEBMASTER%) NOTE: must be a single valid email address
Warning: Please make sure you enter the e-mail address of the webmaster. This is required for registration to work.
TWiki administrator's name address, for use in mails (first name and last name, e.g. =Fred Smith=) (used in %WIKIWEBMASTERNAME%)
Mail program. If Net::SMTP is installed, it will be used in preference. To force TWiki to use the {MailProgram}, unset both {SMTP}{MAILHOST} below and all SMTPMAILHOST settings in your TWiki's Preferences topics. This needs to be a command-line program that accepts MIME format mail messages on standard input, and mails them. To disable all outgoing email from TWiki leave both this field and the MAILHOST field below blank.
Mail host for outgoing mail. This is only used if Net::SMTP is installed. Examples: CAUTION This setting can be overridden by a setting of SMTPMAILHOST in TWikiPreferences. Make sure you delete that setting if you are using a TWikiPreferences topic from a previous release of TWiki. To disable all outgoing mail from TWiki leave both this field and the MailProgram field above blank.
Mail domain sending mail, required if you are using Net::SMTP. SMTP requires that you identify the server sending mail. If not set, Net::SMTP will guess it for you. Example: CAUTION This setting can be overridden by a setting of SMTPSENDERHOST in TWikiPreferences. Make sure you delete that setting if you are using a TWikiPreferences topic from a previous release of TWiki.
Username for SMTP. Only required if your server requires authentication. If this is left blank, TWiki will not attempt to authenticate the mail sender.
Password for your {SMTP}{Username}.
Remove IMG tags in notification mails.
Name of topic in each web that has notification registrations. If you change this setting you will have to use TWiki to manually rename the topic in all existing webs
Set this option on to enable debug mode in SMTP. Output will go to the webserver error log.
Some environments require outbound HTTP traffic to go through a proxy server. (e.g. CAUTION This setting can be overridden by a PROXYHOST setting in TWikiPreferences. Make sure you delete the setting from there if you are using a TWikiPreferences topic from a previous release of TWiki.
Some environments require outbound HTTP traffic to go through a proxy server. Set the port number here (e.g: 8080). CAUTION This setting can be overridden by a PROXYPORT setting in TWikiPreferences. Make sure you delete the setting from there if you are using a TWikiPreferences topic from a previous release of TWiki.
Miscellaneous settings
Number of top viewed topics to show in statistics topic
Number of top contributors to show in statistics topic
Name of statistics topic
Template path. A comma-separated list of generic file names, containing variables standing for part of the file name. When a template $name in $web with $skin is requested, this path is instantiated into a sequence of file names. The first file on this list that is found considered to be the requested template file. The file names can either be absolute file names ending in ".tmpl" or a topic file in a TWiki web.
List of protocols (URI schemes) that TWiki will automatically recognize and activate if found in absolute links. Additions you might find useful in your environment could be 'imap' or 'pop' (if you are using shared mailboxes accessible through your browser), or 'tel' if you have a softphone setup that supports links using this URI scheme. A list of popular URI schemes can be found at
Set to enable experimental mirror-site support. If this name is different to MIRRORSITENAME, then this TWiki is assumed to be a mirror of another. You are highly recommended not to dabble with this experimental, undocumented, untested feature!
Name of site-level preferences topic in the {SystemWebName} web. If you change this setting you will have to use TWiki and *manually* rename the existing topic. (i.e. don't change it unless you are certain that you know what you are doing!)
Web.TopicName of the site-level local preferences topic. If this topic exists, any settings in it will override settings in {SitePrefsTopicName}.
You are strongly recommended to keep all your local changes in a {LocalSitePreferences} topic rather than changing TWikiPreferences, as it will make upgrading a lot easier.
Name of main topic in a web. If you change this setting you will have to use TWiki to manually rename the topic in all existing webs (i.e. don't change it unless you are certain that you know what you are doing!)
Name of preferences topic in a web. If you change this setting you will have to use TWiki to manually rename the topic in all existing webs (i.e. don't change it unless you are certain that you know what you are doing!)
How many links to other revisions to show in the bottom bar. 0 for all
If this is set to a > 0 value, and the revision control system supports it (RCS does), then if a second edit of the same topic is done by the same user within this number of seconds, a new revision of the topic will NOT be created (the top revision will be replaced). Set this to 0 if you want all topic changes to create a new revision (as required by most formal development processes).
When a topic is edited, the user takes a "lease" on that topic. If another user tries to also edit the topic while the lease is still active, they will get a warning. Leases are released automatically when the topic is saved; otherwise they remain active for {LeaseLength} seconds from when the edit started (or was checkpointed).

Note: Leases are not locks; they are purely advisory. Leases can always be broken, but they are valuable if you want to avoid merge conflicts (e.g. you use highly structured data in your topic text and want to avoid ever having to deal with conflicts)

Even if the other users' lease has expired, then you can specify that they should still get a (less forceful) warning about the old lease for some additional time after the lease expired. You can set this to 0 to suppress these extra warnings completely, or to -1 so they are always issued, or to a number of seconds since the old lease expired.
Pathname to file that maps file suffixes to MIME types : For Apache server set this to Apache's mime.types file pathname, for example /etc/httpd/mime.types, or use the default shipped in the TWiki data directory.
If set, this will cause TWiki to treat warnings as errors that will cause TWiki to die. Provided for use by Plugin and Skin developers, who should develop with it switched on.

Installed Plugins

The plugins listed below were discovered by searching the @INC path for modules that match the TWiki standard e.g. TWiki/Plugins/
Plugins evaluation order. If set to a comma-separated list of plugin names, will change the execution order of plugins so the listed subset of plugins are executed first. The default execution order is alphabetical on plugin name.
Consult online extensions repositories for new extensions. If you made any changes, save them first! Find More Extensions
Extensions Repositories Search List
TWiki extension repositories are just TWiki webs that are organised in the same way as the Plugins web on The 'Find more extensions' link above searches these repositories for installable extensions. To set up an extensions repository:
  1. Create a TWiki web to contain the repository
  2. Copy the FastReport page from TWiki:Plugins.FastReport to your new web
  3. Copy the PackageForm page from TWiki:Plugins.PackageForm to your new web
  4. Set the WEBFORMS variable in WebPreferences to PackageForm
The page for each extension must have the TWiki form PackageForm, and should have the packaged extension attached as a zip and/or tgz file.

This setting is a semicolon-separated list of repository specifications, each in the format: name=(listurl,puburl), where:

  • name is the symbolic name of the repository e.g.
  • listurl is the root of a view URL
  • puburl is the root of a download URL
For example,,;,

Mailer Contrib
Settings for the mailer that sends out topic change notifications.
Define the regular expression that an email address entered in WebNotify must match to be identified as a legal email by the notifier. You can use this expression to - for example - filter email addresses on your company domain, or even block use of raw emails in WebNotify altogether (just make it something that will never match, e.g. ='^notAnEmail$'=). If this is not defined, then the default setting of =[A-Za-z0-9.+-_]+\@[A-Za-z0-9.-]+= is used.
Total: 0 errors, 1 warning

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