(r1) AllUsersGroup < Main

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---+ [[TWikiGroups]] &#187; All Users Group

This is a special group literally all users belong. The main use of this group is to lift a web level restriction at the topic level.

This is close to [[AllAuthUsersGroup]]. The difference is that unauthenticated users belong to [[AllUsersGroup]] but not to [[AllAuthUsersGroup]]. 

Let's say a web is viewable only by the members of the !DarkSideGroup by the following line on !WebPreferences.
<pre>
   * <nop>Set ALLOWWEBVIEW = %USERSWEB%.DarkSideGroup
</pre>
By putting the following line on a topic, you can make it viewable by anybody.
<pre>
   * <nop>Set ALLOWTOPICVIEW = %USERSWEB%.AllUsersGroup
</pre>

This topic is not necessary for the group to work because the group is implemented in the code instead of a topic that has members.

__Related topics__: [[%SYSTEMWEB%.TWikiAccessControl][TWikiAccessControl]], [[AllAuthUsersGroup]]
Topic revision: r1 - 2013-09-03 - TWikiContributor