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excerpt=%3cp>%3cspan class='audience'> authors%3c/span>%0a%3c/p>%0a%3cp class='vspace'>%3c/p>%3cp>%3ca class='wikilink' href='http://www.pmwiki.org/wiki/PmWiki/PmWiki'>PmWiki%3c/a> has built-in support for password-protecting various areas of the wiki site.  Authors generally want to be able to apply passwords to individual pages or to %3ca class='wikilink' href='http://www.pmwiki.org/wiki/PmWiki/WikiGroup'>wiki groups%3c/a>.  Wiki Administrators can apply passwords to individual pages, to wiki groups, or to the entire site.  As with any access control system, the password protection mechanisms described here are only a small
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text=%25audience%25 authors%0a%0a[[PmWiki]] has built-in support for password-protecting various areas of the wiki site.  Authors generally want to be able to apply passwords to individual pages or to [[wiki group]]s.  Wiki Administrators can apply passwords to individual pages, to wiki groups, or to the entire site.  As with any access control system, the password protection mechanisms described here are only a small part of overall system and wiki [[security]].%0a%0a!!As an author editing pages...%0a%0aAn author will generally use 3 types of passwords:%0a# to control who can see a page or group, use  @@read@@ passwords%0a# to control who can edit a page or group, use @@edit@@ passwords%0a# to control who can alter the passwords used to protect a page or group, use @@attr@@ passwords%0a%0a'''''To set a password on an individual wiki page,''''' add @@?action=attr@@ to the page's URL (address) to access its attributes.  Using the small form on the attributes page, you can set or clear the @@read@@, @@edit@@, or @@attr@@ passwords on the page.  In the form you enter the passwords as cleartext; PmWiki encrypts them for you automatically when it stores them. Leaving a field blank will leave the attribute unchanged. To remove a password from a page (reverting back to the group's or site's default), enter "clear".  To indicate that the page can be edited even if a group or site password is set, enter "nopass".%0a%0a%0a%0a'''''To set a password on a wiki group''''' is slightly more difficult--you just set the passwords on a special page in each group called "`GroupAttributes".  First, you can get to the attributes page for `GroupAttributes by entering a URL (address) like [@http://www.example.com/pmwiki.php?n=GroupName.GroupAttributes?action=attr@].  Then, using the small form on the attributes page, you can set or clear the @@read@@, @@edit@@, or @@attr@@ passwords for the entire group.  In the form you enter the passwords as cleartext; PmWiki encrypts them for you automatically.%0a%0a'''''Multiple passwords for a page, group or site''''' are allowed. Simply enter multiple passwords separated by a space. This allows you to have a read password, a write password, and have the write password allow read/write access.\\%0aIn other words, if the read password is "alpha" and the edit password is beta, then enter%0a%0a-> [@%0aSet new read password: alpha beta%0aSet new edit password: beta%0a@]%0a%0aThis says that either "alpha" or "beta" can be used to read pages, but only "beta" may edit. Since [@PmWiki@] checks the passwords you've entered since the browser has been opened, entering a read password that is also a write password allows both reading and writing.%0a%0a%0a%25audience%25 administrators%0a%0a!!As an administrator ...%0a%0aYou can set passwords on pages and groups exactly as described above for authors. You can also:%0a# set site-wide passwords for pages and groups that do not have passwords%0a# use @@attr@@ passwords to control who is able to set passwords on pages%0a# use @@upload@@ passwords to control access to the file [[upload(s)]] capabilities (if uploads are enabled)%0a# use an @@admin@@ password to override the passwords set for any individual page or group  %0aFor more information on password options available to administrators, see [[PasswordsAdmin]].%0a%0a!!Which password wins?%0a%0aIn PmWiki, page passwords override group passwords, group passwords override the default passwords, and the @@admin@@ password overrides all passwords.  This gives a great deal of flexibility in controlling access to wiki pages in PmWiki. %0a%0a!!Opening access to pages in protected groups/sites%0a%0aSometimes we want to "unprotect" pages in a group or site that is otherwise protected.  In these cases, the special password "nopass" is used to indicate that access should be allowed to a page without requiring a password.  %0a%0aFor example, suppose `Main.GroupAttributes has an edit password set, thus restricting the editing of all pages in Main.  Now we want `Main.WikiSandbox to be editable without a password.  Using "clear" for the edit password for `Main.WikiSandbox doesn't unprotect the page, because the password is being set by the group.  Instead, we set the edit password for `Main.WikiSandbox to the special value "nopass", which tells PmWiki to ignore any site-wide or group-level passwords for that page.%0a%0a%0a%25trail%25%3c%3c|[[DocumentationIndex]]|>>
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