How to trace connect user ?

Hi,
How can I trace all user connection in a file ?
I would like to know who connected (user oracle) and when.
Thanks for your help,
gnom92.

You can see the figure how many connection made since the db starts up quering v$sysstat;
select name,value from v$sysstat where name like '%logon%';
NAME VALUE
logons cumulative 132671
logons current 175
Generally, Oracle doesn't keep this information. You have to enable audit to keep this info.

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How to trace a user System or I.P address

Hi Experts,
Had to ask how to trace a User's System or I.p address whom has performed changes over a BEX Query.
I have a situation where a user has done some changes in report it displays in last changed by user name:-****and last change date but i would like to trace the system from which these changes have been applied over a the bex Query.
Thanks in advance
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Hi Aman,
Please have a quick look at the note 368048 which explains why the terminal ids are blank in some cases and gives the solutions where applicable.
If you want to see the current workstation with IP Addresses you can have a look at table USR41 which contains this information but this is not contained within the security audit log.
539404     FAQ: Answers to questions about the Security Audit
39418      Logging user actions
As for your query, about viewing user's IP, you might need to get user's Terminal ID from STAT/AL08 and manually use tracert in MS-DOS command to see particular user's IP. EG:tracert myl5005500.
Tracing route to <hostname>[10.10.10.10]
over a maximum of 30 hops:
1    <1 ms    <1 ms    <1 ms <FQDN> [10.10.10.10]
Trace complete.
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Regards,
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How to trace a USER in oracle?

Hi Sir,
I have a rquirement that I need to Trace a session created through the Application. The only data I have is that I know the application will connect to a Database schema and nothing else. How is it possilbe that I can create a trace file for it.
Also is it possilble, that i can trace complete user. how to find all the trace as it create number of process inturn number of trace, how do I find it and combine. I read the documentation but can't understand it clearly?
Any help will be great.

sanora600 wrote:
Aman, thanks for replying. This is the problem, they have not implemented dbms_application_info.
That is the reason I want to know how to trace user(all session of a schema) and combine all the session generated trace(something like trcsess) and then generate tkprof. I am on Oracle 10g.Well, first off, users connect to databases, they don't connect to schemas. And as a follow on, users have sessions, schemas don't.
That said, you might investigate a logon trigger that initiates a 1046 trace. Something like this:
-- create a logon trigger for capturing extended trace data
-- NOTE: must be run as SYS
-- NOTE: Be sure to change both occurances of the target username
-- ('user = xxx' and 'TRACEFILE_IDENTIFIER=') to the
-- correct value for the session you want to trace.
create or replace trigger logon_trigger
after logon on database
begin
if (user = 'SCOTT' ) then
execute immediate 'ALTER SESSION SET TRACEFILE_IDENTIFIER=''SCOTT_APP''';
execute immediate 'alter session set timed_statistics=true';
execute immediate 'ALTER SESSION SET EVENTS ''10046 TRACE NAME CONTEXT FOREVER, LEVEL 12''';
end if;
exception
when others then
null;
end;
end;
Of course, you can play around with the 'if' condition, and delete or disable the trigger when it is no longer needed. The resulting trace file can be run through tkprof.
Edited by: EdStevens on Dec 19, 2008 9:03 AM

How to trace other user's session?

Dear Experts,
I would like to trace other user's session, I am on Oracle 10g R2 (10.2.0.4) on a Windows box. I did search on google and found tons of articles explaining about tracing techniques. But unfortunately, trace file is not getting generated in my case. Below are the steps I am following:
SQL> conn /as sysdba
Connected.
SQL>
SQL> select sid, serial# from v$session where username = 'TEST';
       SID    SERIAL#
        38         17
SQL> show parameter user_d
NAME                                 TYPE        VALUE
user_dump_dest                       string      C:\DB10G\UDUMP
SQL> show parameter timed_s
NAME                                 TYPE        VALUE
timed_statistics                     boolean     TRUE
SQL>Connect a new SQL*Plus session as TEST and then
SQL> show user
USER is "SYS"
SQL>
SQL> select sid, serial# from v$session where username = 'TEST';
       SID    SERIAL#
        19      24465
        38         17
SQL> exec dbms_system.set_ev(38,17, 10046, 12, '');
PL/SQL procedure successfully completed.
SQL> exec dbms_system.set_ev(38,17, 10046, 0, '');
PL/SQL procedure successfully completed.
SQL> grant execute on dbms_system to test;
Grant succeeded.
SQL> exec dbms_system.set_ev(38,17, 10046, 12, '');
PL/SQL procedure successfully completed.in the new session (TEST):
SQL> select * from tab;
TNAME                          TABTYPE CLUSTERID
T                              TABLE
T3                             TABLE
T1                             TABLE
T2                             TABLE
MYEMP                          TABLE
SQL>Yet, no trace file is generated in "C:\db10g\udump" folder.
C:\db10g\udump>dir
Volume in drive C is SYSTEM
Volume Serial Number is AC21-0462
Directory of C:\db10g\udump
12/15/2008 12:36 PM    <DIR>          .
12/15/2008 12:36 PM    <DIR>          ..
               0 File(s)              0 bytes
               2 Dir(s)   9,891,508,224 bytes free
C:\db10g\udump>Your help/advice in this regard will be very helpful.
Regards

You must be using shared server.
You can verify this by referring to the SERVER column of v$session.
In shared server several servers will execute your code, so that's why you don't find a trace file.
The method described in this article should work in your case also:
http://technology.amis.nl/blog/1794/how-to-trace-a-java-application-through-a-connection-pool-using-dbms_monitor-6
Hth
Sybrand Bakker
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Hello,
You are right Sybrand, SYSDBA connections are always audited.
My answer was about enabling auditing to any connections, which may give informations about who access to the Database in general. And, this is true, it was not the scope of the OP question.
However, so as to enlarge audit of SYS/SYSDBA/SYSOPER operations, setting the parameter audit_sys_operations=TRUE may be interesting:
http://download.oracle.com/docs/cd/E11882_01/network.112/e16543/auditing.htm#DBSEG0611
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Where the audit tracefile get genareted for sys user?You may execute this:
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Best regards,
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Even if I've got no DBA permission (for example I don't see the v$session table), have I got any way to trace the users accessing the DB? How can I do? I was told about trace but can someone tell me more? I'd like to know the user accessing the DB and the operation that he's launching. Is it possible?
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Anything is possible if you have the correct privileges. But then you probably don't have those privileges, and probably for a reason, as you probably also don't have the DBA role for a reason.
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Sybrand Bakker
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How to trace a user session?

Hi DBA,
OS: Linux 5
DB Ver: 10.2.0.1
can any one tell me how to trace a session of user in oracle 10g?
Regards,
BK

user12942781 wrote:
Hi DBA,
OS: Linux 5
DB Ver: 10.2.0.1
can any one tell me how to trace a session of user in oracle 10g?
http://download.oracle.com/docs/cd/B19306_01/server.102/b14211/sqltrace.htm#CHDDGCCB
HTH
Aman....

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Maybe this link provides some help?
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Message was edited by: anti RMB
Message was edited by: anti RMB

Aashil,
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How to trace connect user ?

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