Help:Page protection

Administrators can edit protected pages and protect and unprotect pages from editing and moving.

Protection levels
Versions of edit protection are:
 * Semi-protection: protection of a page against editing by an unregistered user.
 * Full protection: protection of a page against editing by a non-admin.
 * Cascading protection:
 * in combination with full protection: protecting a page against editing by a non-admin, but also protecting images embedded on the page, provided that they are on the same site (not on Commons), and  also applying the same protection to transcluded pages for as long as they remain transcluded in the page (thus it works recursively).

Move protection is protection of a page against moving by a non-admin.

How to protect an article

 * To protect a page, click the protect tab. In the monobook skin, the shortcut alt+= can alternatively be used. This will lead to a confirmation screen with two menus and a checkbox. In the menu, the administrator can choose to protect the page from editing by unregistered users or all users. Similarly, the page can be protected from moves by either unregistered users (although this seems standard anyway) or all users (the system automatically adds the same level of protection to moves as it does to edits, but the protection level can be changed by checking the "Unlock move permissions" checkbox). Cascading protection is enabled by checking a separate checkbox. Enter the reason for page protection in the box and press "confirm." This will be logged.
 * To unprotect a page, click the unprotect tab. This will bring up the exact page as above, only this time the two menus will already be selected. Unprotection only involves selecting "(default)" under the "Edits" menu and pressing confirm. A reason for unprotection should be given as well. This action will likewise be logged.