How to make mediawiki not editable by public?

In LocalSettings.php, add the following

/* Disable anonymous user from creating account and editing
pages */
$wgGroupPermissions['*'    ]['createaccount']   = false;
$wgGroupPermissions['*'    ]['read']            = true;
$wgGroupPermissions['*'    ]['edit']            = false;
$wgGroupPermissions['*'    ]['createpage']      = false;
$wgGroupPermissions['*'    ]['createtalk']      = false;

/* Allow user to login */
$wgWhitelistRead = array ("Special:Userlogin");

/* Make sure that user have to have a valid email address
before edit */
$wgEmailConfirmToEdit = true;