[ADMIN] Security question : Database access control

[Igor Georgiev]

Is there any way to prevent superuser to acces the database ? I mean something like "GRANT / REVOKE CONNECT" MECHANISM   I have no idea how to prevent root from access data in one of this ways :     root @ linux:~#su - postgres     postgres @ linux:/usr/local/pgsql/bin$pg_dump .... or     edit pg_hba.conf         # Allow any user on the local system to connect to any         # database under any username, but only via an IP connection:         host         all         127.0.0.1     255.255.255.255    trust              # The same, over Unix-socket connections:         local        all                                          trust or my nightmare a cygwin on Win 98 everybody can can access everything :-((((