Обсуждение: postgreSQL users = LDAP users?

Hello,
is it possible, to create all users of the databaseserver through LDAP?
An schema extension is maybe required, but is it possible, yes or no?!
If yes, where to find more information?

Thank you
Daniel Seichter
--
postgreSQL on Netware - the red elephant
http://postgresql.dseichter.org

On Sun, Jun 29, 2003 at 07:44:50PM +0200, Daniel Seichter wrote:
> Hello,
> is it possible, to create all users of the databaseserver through LDAP?
> An schema extension is maybe required, but is it possible, yes or no?!
> If yes, where to find more information?


We have pg using pam and pam uses ldap. It's just all standard
pam/ldap stuff so it shouldn't be any problem. And there are plenty
manuals about pam and ldap.

--
Hans

On Monday 30 June 2003 23:39, Hans Spaans wrote:
> On Sun, Jun 29, 2003 at 07:44:50PM +0200, Daniel Seichter wrote:
> > Hello,
> > is it possible, to create all users of the databaseserver through LDAP?
> > An schema extension is maybe required, but is it possible, yes or no?!
> > If yes, where to find more information?
>
> We have pg using pam and pam uses ldap. It's just all standard
> pam/ldap stuff so it shouldn't be any problem. And there are plenty
> manuals about pam and ldap.

    In that case can somone surgest some good documentation on ldap and pam. As
I've been try to set it up for months unsucsessfully.....
    All the web sites I've seen are a little uncomprohensable.
    Sorry this is a little off topic.

Peter Childs

Peter Childs írta:

On Monday 30 June 2003 23:39, Hans Spaans wrote: 

On Sun, Jun 29, 2003 at 07:44:50PM +0200, Daniel Seichter wrote:   

Hello,
is it possible, to create all users of the databaseserver through LDAP?
An schema extension is maybe required, but is it possible, yes or no?!
If yes, where to find more information?     

We have pg using pam and pam uses ldap. It's just all standard
pam/ldap stuff so it shouldn't be any problem. And there are plenty
manuals about pam and ldap.   

In that case can somone surgest some good documentation on ldap and pam. As 
I've been try to set it up for months unsucsessfully.....All the web sites I've seen are a little uncomprohensable. Sorry this is a little off topic.

Peter Childs

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Look at this
http://www.mandrakesecure.net/en/docs/samba-ldap-advanced.php
http://www.mandrakesecure.net/en/docs/ldap-auth2.php
if you only want to sync users, and not any information regarding them. If you would want more then:
You'll have to use the ODBC based sql backend for ldap (VERY SLOW ), and connect using postgres, or whatever your database superuser is. You will need to create some tables and views, tables containing ldap specific things, see: http://www.samse.fr/GPL/ldap_pg/HOWTO/
and views which unify the former with pg_shadow information.

I wish you the best luck in succeeding this !

Best Regards

Geza Gemes

Hi,
I'm evaluating some DB and one of the things i'd like to know is the
maximum size of a file that postgres can handle with. cause i'm planning
to have a centalized database the must have some billion records.

Thx

--
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-
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-
 Consultoria e Serviços em Informação, Planejamento,
 Epidemiologia, Estatística e Computação aplicada à Saúde.
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On Tue, 1 Jul 2003, mauricio wrote:

> Hi,
> I'm evaluating some DB and one of the things i'd like to know is the
> maximum size of a file that postgres can handle with. cause i'm planning
> to have a centalized database the must have some billion records.

In it's default configuration Postgresql autosplits table at approximately
1 gigabyte.  Therefore, it has no built in limit to table size.

If you have an OS that can handle larger files, you can compile postgresql
to use larger file sizes.  I have seen no great improvement in speed in
using one large file for a table over splitting at 1Gig.

scott.marlowe wrote:
> On Tue, 1 Jul 2003, mauricio wrote:
>
>
>>Hi,
>>I'm evaluating some DB and one of the things i'd like to know is the
>>maximum size of a file that postgres can handle with. cause i'm planning
>>to have a centalized database the must have some billion records.
>
>
> In it's default configuration Postgresql autosplits table at approximately
> 1 gigabyte.  Therefore, it has no built in limit to table size.
>
> If you have an OS that can handle larger files, you can compile postgresql
> to use larger file sizes.  I have seen no great improvement in speed in
> using one large file for a table over splitting at 1Gig.

Hrm.  This all ought to be dependent on record size and operating
system limits on the number of file descriptors, shouldn't it?

Greg

--
Greg Spiegelberg
  Sr. Product Development Engineer
  Cranel, Incorporated.
  Phone: 614.318.4314
  Fax:   614.431.8388
  Email: gspiegelberg@Cranel.com
Cranel. Technology. Integrity. Focus.

On Tue, 1 Jul 2003, Greg Spiegelberg wrote:

> scott.marlowe wrote:
> > On Tue, 1 Jul 2003, mauricio wrote:
> >
> >
> >>Hi,
> >>I'm evaluating some DB and one of the things i'd like to know is the
> >>maximum size of a file that postgres can handle with. cause i'm planning
> >>to have a centalized database the must have some billion records.
> >
> >
> > In it's default configuration Postgresql autosplits table at approximately
> > 1 gigabyte.  Therefore, it has no built in limit to table size.
> >
> > If you have an OS that can handle larger files, you can compile postgresql
> > to use larger file sizes.  I have seen no great improvement in speed in
> > using one large file for a table over splitting at 1Gig.
>
> Hrm.  This all ought to be dependent on record size and operating
> system limits on the number of file descriptors, shouldn't it?

not sure what you mean.  The number of file descriptors isn't usually a
big issue unless you've got a default installation of an older OS, the
number of file descriptors won't likely be an issue unless you need to
startup a lot of backends.

Hello,
thank you for you links, I will take a look to it.

Daniel
--
postgreSQL on Netware - the red elephant
http://postgresql.dseichter.org



-- you wrote ---
Look at this
http://www.mandrakesecure.net/en/docs/samba-ldap-advanced.php
http://www.mandrakesecure.net/en/docs/ldap-auth2.php
if you only want to sync users, and not any information regarding them. If
you would want more then:
You'll have to use the ODBC based sql backend for ldap (VERY SLOW  ), and
connect using postgres, or whatever your database superuser is. You will
need to create some tables and views, tables containing ldap specific
things, see: http://www.samse.fr/GPL/ldap_pg/HOWTO/
and views which unify the former with pg_shadow information.

I wish you the best luck in succeeding this  !

Best Regards

Geza Gemes