| U | |||
| UNIX commands (  ) | |||
| unknown (  ) | |||
| unknown and unreachable, distinguishing between (  ) | |||
| unreachable (  ) | |||
| user role descriptions (  ) (  ) | |||
| user roles | |||
| adding privileges (  ) | |||
| creating (  ) | |||
| deleting (  ) | |||
| listing (  ) (  ) (  ) | |||
| listing privileges (  ) (  ) | |||
| removing privileges (  ) | |||
| users | |||
| adding (  ) | |||
| deleting (  ) | |||
| managing (  ) | |||
| using | |||
| default roles (  ) (  ) | |||