The dba module provides Drupal administrators with direct access to their Drupal database tables from within the standard Drupal user interface. It is possible to execute scripts to create and alter tables, to backup one or more tables, to view/edit/delete data within tables, and to emtpy or drop tables. If using MySQL, it is also possible to check and repair tables.
Guestbook module provides a site guestbook and individual user guestbooks. Guestbook owners can delete and comment the guestbook entries. Avatars are shown if they are available.
D8: Maintaining a canonical path and redirecting alternative URL's like non-aliased path, path without language prefixes and so on (Previously provided by Global redirect)
D8: Separate Redirect 404 module that logs aggregated 404 request (can suppress them in the default log) and allows to create redirects from them
D8: Separate Redirect Domain module allows wildcard and domain redirects