Helmut Hullen wrote: Are they passing the captcha to create the account? Protect the main page? Install AbuseFilter and add a filter that automatically stops them and block the account if their first edit is to edit the main page?

Helmut Hullen wrote: I recommed to choose reCaptcha. It's barrier-free and really nasty to crack by bots. (Well, it's google and I respect everybody saying you should not rely on this service) See the ConfirmEdit help for installation instructions.

Hallo, Platonides, Du meintest am 27.07.11: Sorry - my wiki uses "simpleCatcha". I've just tried to change to "MathCatcha" following the instructions in path/to/wiki/extensions/ConfirmEdit/MathCaptcha (version from May 6 2011) and edited only "LocalSettings.php". That led to the error message ----------------- error ------------------- Es ist ein Datenbankfehler aufgetreten. Der Grund kann ein Programmierfehler sein. Die letzte Datenbankabfrage lautete: (SQL-Abfrage versteckt) aus der Funktion "MathRenderer::_recall". Die Datenbank meldete den Fehler "1267: Illegal mix of collations (latin1_german2_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation '=' (db2.variomedia.de)". -------------------------------------------- There may be some inconsistency in the database - who can help, what can help? I can edit the database via phpMyAdmin (or other tools). Viele Gruesse! Helmut

On Tue, Jul 26, 2011 at 8:19 AM, Ashar Voultoiz <hashar+wmf(a)free.fr> wrote: There's that. Also when deleting a user there's also likely to be log entries (newuserlog) as well, so just deleting the user record is insufficient. -Chad