RE: Restrict login for a particular user to be only from particul ar m achines

Stefan,
 
Thanks.  Here's the result in my environment--very puzzling.
 
SQL> set instance hounddog
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
 
SQL> @conn "sys as sysdba"
Enter password:
Connected.
SYS@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> create or replace procedure do_insert
  2  as
  3  pragma autonomous_transaction;
  4  begin
  5  insert into t values (1);
  6  commit;
  7  end;
  8  /
 
Procedure created.
 
SYS@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
SYS@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> create or replace trigger 
verify_client
  2  after logon on database
  3  begin
  4  if (user='PB') then
  5     do_insert;
  6     raise_application_error(-20001,'Foo');
  7  end if;
  8  end;
  9  /
 
Trigger created.
 
SYS@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> @conn pb/pb
Connected.
 
 
Ideas?  Anyone?  Or is it time to open an SR?

Paul Baumgartel 
CREDIT SUISSE 
Information Technology 
DBA & Admin - NY, KIGA 1 
11 Madison Avenue 
New York, NY 10010 
USA 
Phone 212.538.1143 
paul.baumgartel@xxxxxxxxxxxxxxxxx 
www.credit-suisse.com 

-----Original Message-----
From: Stefan Knecht [mailto:knecht.stefan@xxxxxxxxx]
Sent: Thursday, September 14, 2006 4:11 AM
To: paul.baumgartel@xxxxxxxxxxxxxxxxx
Cc: oracle-l
Subject: Re: Restrict login for a particular user to be only from particular m 
achines


Hi Paul,

This works:


sys@ORA9I> create table t (x int);

Table created.

sys@ORA9I> create or replace procedure do_insert
  2  as
  3  pragma autonomous_transaction;
  4  begin
  5  insert into t values (1);
  6  commit;
  7  end;
  8  /

Procedure created.

sys@ORA9I> 
sys@ORA9I> create or replace trigger verify_user 
  2  after logon on database
  3  begin
  4  if (user='FOO') then
  5     do_insert;
  6     raise_application_error(-20001,'Foo');
  7  end if;
  8  end;
  9  /


Trigger created.

sys@ORA9I> @conn foo/bar
ERROR:
ORA-00604: error occurred at recursive SQL level 1 
ORA-20001: Foo
ORA-06512: at line 4


Warning: You are no longer connected to ORACLE.
idle> 

Stefan




On 9/13/06, Baumgartel, Paul < paul.baumgartel@xxxxxxxxxxxxxxxxx 
<mailto:paul.baumgartel@xxxxxxxxxxxxxxxxx> > wrote: 

All,
 
A client wants to be able to limit login for particular database user to be 
from a specified set of client machines.  My understanding of login restriction 
at the listener level is that it is possible only to limit all database logins 
based on machine.  I've been experimenting with login triggers that inspect 
sys_context('userenv','host'), but haven't figured out how to prevent the 
session from proceeding if the client machine name is not in the approved list. 
 If anyone has any ideas or suggestions I'd be most grateful.
 
Thanks,
 
Paul Baumgartel 
CREDIT SUISSE 
Information Technology 
DBA & Admin - NY, KIGA 1 
11 Madison Avenue 
New York, NY 10010 
USA 
Phone 212.538.1143 
paul.baumgartel@xxxxxxxxxxxxxxxxx <mailto:paul.baumgartel@xxxxxxxxxxxxxxxxx>  
www.credit-suisse.com <http://www.credit-suisse.com>  

 



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