Here's a checklist of things to be done to completely remove a workgroup. (It's just a checklist -- the details are left as an excercise for the reader, for now.)

• Save the contents of /home/www/cvswww/<hostname>/<groupname>.
• Save the contents of /home/www/wwwdata/<hostname>/<groupname>.
• Remove its row from the groups table of the auth_n database
• Use http://embedded.eecs.berkeley.edu/mysql to remove all its rows from the auth table of the auth_n database
• Remove all its rows from the access table of the auth_n database
• Update all user sessions that might have the group in them. This can be done with a PHP script that looks like this:

  <?php
  require('include/auth.inc.php3');
  require('include/user.inc.php3');
  require('include/sql.inc.php3');
  require('include/util.inc.php3');
  
  $users = sql_select_array("cache_1", "apache",
      "select distinct user from session where auth like '%<the_group_name>%'");
  
  // You can also specify an explicit list of users to update:
  // $users['allenh', 'joeblow'] = 1;
  
  while (list($u, $a) = each($users)) {
      echo "refreshing $u<br>";
      user_refresh($u);
  }
  ?>
  

  Note that running this will undo any permission overrides anybody might have.

  There's probably already a script lurking about, called something like /home/www/php/refresh_all_sessions.php. To run it, first edit it for your purposes, then simply access the URL, edit /home/www/php/hostname/get.php and temporarily insert code to run the php script, for example, near the sitemap.html:

  } elseif ($url == "/refresh_all_sessions") {
      include('refresh_all_sessions.php');
  

  Then visit: http://<website_name>/refresh_all_sessions.

• Drop the group's database.
• Remove /home/www/cvswww/<hostname>/<groupname>.
• Remove /home/www/wwwdatda/<hostname>/<groupname>.
• Remove its mail lists.
• Remove its mail list's lines from /etc/mail/virtusertable and run

  makemap dbm /etc/mail/virtusertable < /etc/mail/virtusertable
  pkill -HUP sendmail
  
  

• Remove its mail list's lines from /etc/aliases and run

  newaliases