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Re: ODBC first time odbc

From: Marc Fromm <Marc(dot)Fromm(at)wwu(dot)edu>
To: "jsilberberg(at)mindspring(dot)com" <jsilberberg(at)mindspring(dot)com>
Cc: "pgsql-odbc(at)postgresql(dot)org" <pgsql-odbc(at)postgresql(dot)org>
Subject: Re: ODBC first time odbc
Date: 2011-03-30 03:01:10
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-odbc
I figured out the permissions problem, by removing superuser and granting select. Now the users can view the data and not alter it.

I have one last step--locking access down by ip address.

Even though I set only one specific ip address in the pg_hba.conf file, I can odbc to postgresql database from a variety of ip addresses on different computers. The postgresql.conf file still has listen_address='*'. If I set listen_address='one.ip.address' I get connection errors. Is setting listen_address='*' a security risk?


From: jsilberberg(at)mindspring(dot)com [jsilberberg(at)mindspring(dot)com]
Sent: Tuesday, March 29, 2011 3:34 PM
To: Marc Fromm; pgsql-odbc(at)postgresql(dot)org
Subject: Re: [ODBC] ODBC first time odbc


   You may want to start at the index and read the manual.

    But I think you need to "grant select ................" to your ODBC user for your permissions issue.


-----Original Message-----
From: Marc Fromm
Sent: Mar 29, 2011 5:13 PM
To: "pgsql-odbc(at)postgresql(dot)org"
Subject: [ODBC] ODBC first time odbc

By changing the user that I login with to a super user, everything works. I don’t get the permission denied error.
However, I only want the users to read. Being set as a super user allows the odbc user to change the data.

My problem is now down to two security points:
How do I have a user with only read access (not a super user) and not be denied viewing the table data?

How do I control access with listen_address=’localhost, specific.ip.addresses’ and not use ‘*’?
Setting listen_address=’localhost, specific.ip.addresses’ does not work, I get call failed errors asking if the server is accepting tcp/ip connections on port 5432


From: Marc Fromm
Sent: Tuesday, March 29, 2011 1:23 PM
To: 'jsilberberg(at)mindspring(dot)com'
Cc: pgsql-odbc(at)postgresql(dot)org
Subject: RE: [ODBC] first time odbc

By editing postgresql.conf and changing listen_address = ‘*’ and editing pg_hba.conf and adding host all all my.ip.address allowed me to connect to the postgresql data base with Microsoft access.

In access I can see the table and it fields, but if I try to use the table in a querry or view the table I get an error: permission denied for relation summer_finaid; error while executing the query (#7)

Any ideas?

Also in the postgresql instead of listen_address=’*’ I tried listen_address=’localhost, my.ip.address’ but that failed to work.
How can I keep local host and only allow specific address? I don’t want to open it up to all with ‘*’


From: jsilberberg(at)mindspring(dot)com [mailto:jsilberberg(at)mindspring(dot)com]
Sent: Tuesday, March 29, 2011 11:13 AM
To: Marc Fromm; pgsql-odbc(at)postgresql(dot)org
Subject: Re: [ODBC] first time odbc


    That's a vintage 02-Feb-2006 driver.

     I use 8.04 from Dec-2009 and even that's getting a little stale.  Why not try the 9.n drivers.

     Could the port(s) be blocked / restricted between you and the server and is PostgreSQL SSL support enabled --



-----Original Message-----
From: Marc Fromm
Sent: Mar 29, 2011 1:58 PM
To: "pgsql-odbc(at)postgresql(dot)org<mailto:pgsql-odbc(at)postgresql(dot)org>"
Subject: [ODBC] first time odbc

Before learning there was an odbc list, I sent this post to the admin list.

I am running postgres on a red hat linux server.

User on windows computers would like to odbc to the postgres databases.
I downloaded the windows postgres odbc drivers from the following site and installed version “psqlodbc-08_01_0200” on the windows computer.

When I configure a “File Data Source” connection in access, I cannot connect to the postgresql database. I get the message, “A connection could not be made using the file data source parameters entered. Save non-verified file DSN?”
The parameters entered are:
Database: database_name
Server: I entered the IP address of the server
User Name: I entered postgres
SSL Mode: prefer
Port: 5432 (which is the port used by postgres)

Do I need to configure the /etc/odbc.ini file? It is currently just a blank file.

Thanks for any help.


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