Subject | Re: Can we "Lock Down" Firebird to keep users from tampering with data? |
---|---|
Author | Adam |
Post date | 2006-03-14T01:04:33Z |
--- In firebird-support@yahoogroups.com, "dbagregc" <gcobb@...> wrote:
owner is not SYSDBA). Sending your consultants the bill for the
support should teach them quick smart not to mess around ;)
Perhaps also find out what they are attempting to achieve and give
them a script to do that will be less work for all.
As far as locking down goes, Geoff Worboys has a nice paper on the
firebirdsql.org site, and I have put my experiences on the fbtalk site.
Adam
>Are you able to fix it as the owner user of the database (assuming the
> --- In firebird-support@yahoogroups.com, Radu Sky <skysword76@>
> wrote:
> >
> > dbagregc wrote:
> > > --- In firebird-support@yahoogroups.com, Alexandre Benson Smith
> > > <iblist@> wrote:
> > >> dbagregc wrote:
> > >>> I tried to create a role called sysdba and it would not let me
> > > do
> > >>> it. It says "This operation is not defined for system tables.
> > >>> unsuccessful metadata update. user name SYSDBA could not be
> > > used
> > >>> for SQL role." The steps I took were to log on as sysdba,
> > > create a
> > >>> new user, log on as the new user, then tried to create role
> > > called
> > >>> sysdba. Any suggestions?
> > >>>
> > >> I think it should be:
> > >>
> > >> Log as SYSDBA
> > >> create the SYSDBA role
> > >> logout
> > >> try to log as SYSDBA (should fail)
> > >>
> > >> never tried it, but I think that should be this way.
> > >>
> > >>
> > >> see you !
> > >>
> > >> --
> > >> Alexandre Benson Smith
> > >> Development
> > >> THOR Software e Comercial Ltda
> > >> Santo Andre - Sao Paulo - Brazil
> > >> www.thorsoftware.com.br
> > >>
> > >
> > > I tried this and it did not work either. It could be the fact
> that
> > > I am doing this through IBExpert, but I would assume that it has
> the
> > > same functionality that you get from talking to the database
> through
> > > ODBC and the firebird utils.
> > >
> >
> > Create some role.
> > Modify RDB$ROLES, rename your role to SYSDBA
> >
> > HTH
> > Radu
> >
>
> Ok, modifying does actually appear to work (to some extent). It
> will let you do this, but I have found a problem with this that may
> be unfixable. It appears that you can not edit system tables
> (RDB$SOMETABLENAME) unless you are SYSDBA. Is this correct? In the
> past we had made a few modifications to fields by editing the system
> tables. I didn't really want to give up this ability unless
> absolutely necessary. Maybe even more importantly though is the
> fact that the "hack" to get this done is to modify the system table
> RDB$ROLES. What if we find out some time down the road that this
> process doesn't really work for us and we want to enable the SYSDBA
> user again. The new user cannot edit the RDB$ROLES table. I have
> tried granting the new user (actually the role the new user is
> using) rights to the system tables, but once I do this and try to
> log back in to the database I get all kinds of errors and can never
> log in as that user again (if this was your only user and you did
> this after locking out sysdba then you can never get in to the
> database again). So if a user doesnt normally have access to the
> system tables and you can't grant them access to them, how do I edit
> system tables? I guess what I want is to be able to create a
> user/role that has all the same rights as SYSDBA so we can do
> everything we can do now, but have the ability to keep people from
> messing with the database.
>
> I guess your solution does work, but it just scares me to do
> something that I can not undo, which also restricts me from doing
> things I used to be able to do.
>
owner is not SYSDBA). Sending your consultants the bill for the
support should teach them quick smart not to mess around ;)
Perhaps also find out what they are attempting to achieve and give
them a script to do that will be less work for all.
As far as locking down goes, Geoff Worboys has a nice paper on the
firebirdsql.org site, and I have put my experiences on the fbtalk site.
Adam