sys.aud$ - auditing user activities?

2002-11-18 Thread Dana . Mueller
Hello All,

Do any of you have suggestions for a good way to monitor sysdba user
activities on the sys.aud$ table?  Or, in terms of logging everything, what
would be the keypoints to log scrub on?

Any suggestions would be wonderful.
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FW: sys.aud$ - auditing user activities?

2002-11-18 Thread Dana . Mueller


  -Original Message-
 From: Dana Mueller  
 Sent: Monday, November 18, 2002 11:45 AM
 To:   '[EMAIL PROTECTED]'
 Subject:  sys.aud$ - auditing user activities?
 
 Hello All,
 
 Do any of you have suggestions for a good way to monitor sysdba user
 activities on the sys.aud$ table?  Or, in terms of logging everything,
 what would be the keypoints to log scrub on?
 
 Any suggestions would be wonderful.
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Updated Question (sorry for the spam)

2002-11-18 Thread Dana . Mueller
Is there a way to log the sysdba account accessing sys.aud table?  In my
reading, I have not found a solution to this yet.

Thanks Again,

Dana Mueller
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RE: sys.aud$ - auditing user activities? - follow up

2002-11-18 Thread Dana . Mueller
Tim - Thanks for the well worded response.  Very, very helpful.

So my next question:  Are there any 3rd party applications available to do
what Oracle won't?

-Original Message-
Sent: Monday, November 18, 2002 4:29 PM
To: Multiple recipients of list ORACLE-L


SYSDBA activities are not logged to the SYS.AUD$ table, even in Oracle9i
with the AUDIT_SYS_OPERATIONS parameter set to TRUE.  SYSDBA operations are
always logged to the OS audit trail, including access/modifications to the
SYS.AUD$ table...

The reason that these records are only logged to the audit trail (previous
to Oracle9i, only connections as SYSDBA were logged) is because that is the
only way to protect the audit records review and (especially!) alteration
from people with SYSDBA privilege.  Someone with SYSDBA could alway muck
with the contents of the SYS.AUD$ table, but they would not necessarily have
OS permissions to alter the audit records sent to the OS.

...which is why the command CONNECT INTERNAL went away with Oracle9i, to
remove the last necessity for DBAs to be members of the OSDBA and OSOPER
groups in the OS.  Now, with 9i and CONNECT ... AS SYSDBA commands, you can
lock down the OS account and account-group that owns the Oracle software
away from those with SYSDBA privileges, thus protecting the software
distribution files, log files, trace files, and audit files from casual
modification, if desired...

- Original Message -
To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED]
Sent: Monday, November 18, 2002 12:46 PM


 Hello All,

 Do any of you have suggestions for a good way to monitor sysdba user
 activities on the sys.aud$ table?  Or, in terms of logging everything,
what
 would be the keypoints to log scrub on?

 Any suggestions would be wonderful.
 --
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 Author:
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RE: sys.aud$ - auditing user activities? - follow up

2002-11-18 Thread Dana . Mueller
Tim / All.

I figured it out.

Basically assign users SYSDBA privies and track accordingly. 

-Original Message-
Sent: Monday, November 18, 2002 7:44 PM
To: Multiple recipients of list ORACLE-L


please be a little more specific?  what exactly is it that oracle won't do?

- Original Message -
To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED]
Sent: Monday, November 18, 2002 7:58 PM


 Tim - Thanks for the well worded response.  Very, very helpful.

 So my next question:  Are there any 3rd party applications available to do
 what Oracle won't?

 -Original Message-
 Sent: Monday, November 18, 2002 4:29 PM
 To: Multiple recipients of list ORACLE-L


 SYSDBA activities are not logged to the SYS.AUD$ table, even in Oracle9i
 with the AUDIT_SYS_OPERATIONS parameter set to TRUE.  SYSDBA operations
are
 always logged to the OS audit trail, including access/modifications to the
 SYS.AUD$ table...

 The reason that these records are only logged to the audit trail (previous
 to Oracle9i, only connections as SYSDBA were logged) is because that is
the
 only way to protect the audit records review and (especially!) alteration
 from people with SYSDBA privilege.  Someone with SYSDBA could alway muck
 with the contents of the SYS.AUD$ table, but they would not necessarily
have
 OS permissions to alter the audit records sent to the OS.

 ..which is why the command CONNECT INTERNAL went away with Oracle9i, to
 remove the last necessity for DBAs to be members of the OSDBA and OSOPER
 groups in the OS.  Now, with 9i and CONNECT ... AS SYSDBA commands, you
can
 lock down the OS account and account-group that owns the Oracle software
 away from those with SYSDBA privileges, thus protecting the software
 distribution files, log files, trace files, and audit files from casual
 modification, if desired...

 - Original Message -
 To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED]
 Sent: Monday, November 18, 2002 12:46 PM


  Hello All,
 
  Do any of you have suggestions for a good way to monitor sysdba user
  activities on the sys.aud$ table?  Or, in terms of logging everything,
 what
  would be the keypoints to log scrub on?
 
  Any suggestions would be wonderful.
  --
  Please see the official ORACLE-L FAQ: http://www.orafaq.com
  --
  Author:
INET: [EMAIL PROTECTED]
 
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tnslistener brute force trigger?

2002-11-14 Thread Dana . Mueller
all,

i have been attempting to find a solution to set a trigger / alarm mechanism
on the listener for brute-force attempts.  we're trying to get something
useful logged so we can forward it to an ISD system or what not.

ideas?  i have done a bit of research and found nothing useful so far.

am i missing something?

thanks in advance.

dana mueller
guardent, inc.
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Re: Problem with database link

2001-04-12 Thread dana


You could try setting GLOBAL_NAMES to FALSE in your init.ora file.
By default, it's set to TRUE. Once I set mine to FALSE, I was able to
create public database links easily.

 - Dana


--- Michal Zaschke [EMAIL PROTECTED] wrote:
 AFAIK, parameter DB_DOMAIN is what appends to the database link name
 (which must be DB_NAME of your remote database).
 
 SQLWKS show parameter db_domain
 NAME   TYPEVALUE
 -- --- --
 db_domain  string  WORLD 
 
 
 
 Helmut Daiminger wrote:
  
  Hi there!
  
  I'm having a problem with database links here.
  
  I am on my SPEEDY database and want to create a link that points to
 another
  database called SAM.
  
  create database link SAM connect to user identified by pasword
 using 'SAM';
  
  Then I try and issue that statement:
  
  select view_name from user_views@SAM
   *
  ERROR at line 2:
  ORA-02085: database link SAM.VIVONET.COM connects to SAM
  
  Where does our domain name appendix (vivonet.com) come from I
 looked in
  all the possible config files (e.g. sqlnet.ora etc.) and couldn't
 find
  anything. In both databases the init.ora parameter is set to
 global_names =
  true.
  
  Any idea?
  
  This is 8.1.6 on Win2k.
  
  Thanks,
  Helmut
  
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Rollback seg for an entire session, not just per transaction? Implicit commits in PL/SQL?

2001-04-03 Thread dana


A colleague wants to do a large load using multiple PL/SQL programs;
she typically (has the DBA) turns off all rollback segments except for
SYSTEM and one large rollback segment.

Some questions:

Will the rollback segment called SYSTEM in the SYSTEM tablespace never
be used for user session transactions?

Is there any way to specify which rollback segment to use for an entire
session versus per transaction? I'm not sure if her PL/SQL code
performs implicit commits so I'm not sure doing one commit + set
transaction before executing the procedure(s) will have the desired
effect. Will Oracle ever do an implicit commit inside a PL/SQL
procedure or is a commit performed only with the commit command or when
exiting a procedure?

Thanks very much.

 - Dana






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RE: Script to reverse engineer all objects in a schema to DDL?

2001-04-03 Thread dana


 There are other programs such as SQL Navigator, DB Artisan, EZSQL are
 available but requires you to purchase a copy.


SQL Programmer from Sylvain-Faust, another commercial product, will do
this as well; at least on a per-object basis. It's a terrific tool all
around:

http://www.sfi-software.com/
 
 - Dana



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Re: New born DBA

2001-03-29 Thread dana


 shameless plug
 
 get the book _Oracle DBA 101_  it has not only that kind of list, but
 lots and lots of other good stuff.  and you can always ask one of the
 authors questions right here on the list.;-)
 /shameless plug 
 did i do good rachel?;-)


Question for the authors here (offline responses ok): with book-writing
for technical issues, are these usually work-for-hire affairs or
royalty-based? I ask as a DBA who does a small amount of
(travel-related) freelance writing on the side.

With the relatively higher price tag of technical books but lower
number of sales, e.g.:

SELECT count(*) from BOOK_SALES where SUBJECT = 'DATABASE
ADMINISTRATION';

SELECT count(*) from BOOK_SALES where SUBJECT = 'PERSONAL FINANCE';

Which works out better for technical authors? Work-for-hire (flat
one-time fee, publisher purchases the copyright) or royalties? My guess
is work-for-hire unless the royalties are a generous percentage of list
price (versus net). I've heard co-authors of technical books receive as
little as USD (or should that be USC) 25 cents a book when royalties
are paid.

Thanks.

 - Dana



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Re: Oracle Books on Audio Tapes

2001-03-29 Thread dana


--- Apps Sol [EMAIL PROTECTED] wrote:
  Is there any place where we can get Oracle books  on Tape (Audio
 tapes or CD's) 
 RK


I doubt it. From what I understand, audio books are primarily made from
best-selling fiction. What non-fiction audio books exist are probably
limited to stuff with the broadest general appeal (best-sellers).

I've personally never heard of technical books on tape/audio CD.
However, you might be able to make your own, rather tediously, if you
receive a PDF version along with a "dead tree" technical book.

1. Copy-paste the text from the PDF to your word processor of choice.
2. Use text-to-speech software to creave WAV files
3. Burn to CD.

Or, you may want to purchase some Oracle Computer-Based-Training CDROMs
and burn the audio tracks to an audio CD(if they're in a standard audio
format or a format you could convert to WAVs) - or convert and download
to an MP3 player. That's probably your best choice, though an expensive
one.

 - Dana



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DBA job market in Australia and Asia?

2001-03-14 Thread dana


What's the job market like for Oracle DBAs in Australia (Queensland and
NSW)? Is demand being satisfied mostly with local talent? I've heard
that's the case for much of the IT market there.

Would it be difficult for an American Oracle DBA to secure a work visa
in Australia or Asia? Any demand for English-speaking Oracle DBAs in
Asia? I've heard English-speaking techs are in high-demand over in
Asia, but where specifically and doing what specifically I don't know
(possibly technical training conducted in English, or English for
programmers/engineers/techs; or technical writing).

How would a person go about finding these jobs? Any companies hiring
around Boston that would send Oracle DBAs on overseas assignments?


Thanks very much.

 - Dana


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STATSPACK or equivalent for 8.0.X databases?

2001-03-14 Thread dana


Will statspack ever be available, in a supported version, for
Oracle 8.0.X? We'll be upgrading the machine I'm concerned about
to 8.1.X eventually (next six months or so); But for now, I'd like to
have access to a more sophisticated tuning-data gathering tool than
bstat/estat.

I find it appalling that bstat/estat can't collect, compare, and
contrast multiple sets of tuning data over time; that it can't
calculate db buffer cache hit ratios, etc.

We've purchased Spotlight on Oracle from Quest; But come to find out
(someone else did the research and made the purchase recommendation
before I became involved), Spotlight is merely a real-time monitor and
can't save tuning data. I thought about writing something to retrieve
data from the Spotlight tables, or modifying bstat/estat to make it do
what I want, but statspack seems to do everything I want - and who
wants to reinvent the wheel?

Any good tuning data gathering freeware out there (with statspack-like
functionality) for use with 8.0.X databases? 

Thanks very much.

 - Dana



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confused about # of extents per segment performance issue

2001-02-27 Thread dana mn


Apparently, it's a widely held myth that a large # of extents (let's
say "BETWEEN 5 AND 1000") per table segment is bad for performance. Yet
the same sources who label the belief mistaken persist in pushing for
fitting all of a table in the INITIAL extent.

And that confuses the heck out of me.

What gives?

Is it that fetching a new extent on the fly, the act of obtaining a new
extent, creates too much overhead? And finis, no more concern beyond
this?

If you approached a database for the first time and it already
contained a segment with 500 extents, would that segment's number of
extents not be a performance concern unless you expected it to continue
grabbing new extents? Let's say it would never have a new insert,
update, or delete. Would there be any performance value in crushing the
segment down to fit in one extent?

What's the definitive answer on this?

I remain confused about coalescing as well; anyone know of a good
whitepaper or article on coalescing/fragmentation for Oracle 8 and
beyond?


Thanks.

 - Dana






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Re: Tuning, RAID5, and fragmentation and DBWR

2001-02-27 Thread dana mn


Thanks Dave, Don, and Patrice.

It's hardware RAID, a Compaq GS140 machine, and Oracle on VMS [not my
choice of OS/hardware]. Limited to one large RAID5 volume.

I'd like to make the most of what's there, because for political
reasons nothing else will change.

Does it make any sense to increase the number of database writer
processes on a system with nothing but RAID5 space? Looks like there's
a bit of slowdown on checkpoints.

Thanks.

 - Dana


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Tuning, RAID5, and fragmentation

2001-02-25 Thread dana mn


Presuming a DBA is forced to use RAID5, what elements of tuning become
irrelevant? (in the sense that if you're stuck with RAID5, warts and
all, then trying to tune X, Y, and Z would be a waste of time /
ineffective).

Load balancing files would be one thing.. no way to put indexes and
tables on different disks (ditto redo log file members, etc) with one
massive RAID5 volume.

What about fragmentation and coalescing? Are these still a concern for
tablespaces located on RAID5 volumes?

Has anyone written an article about Oracle and "living with RAID5"? I'm
finding that a customer has several Oracle databases on systems with
nothing else but RAID5 storage for everything.


Thanks very much.

 - Dana



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bstat/estat like setting a specific window of time for V$SYSSTAT?

2001-02-20 Thread dana mn


Would it be correct to say that using bstat/estat is like
querying V$SYSSTAT but setting the activity to a specified
window of time versus instance startup to time of a query
to V$SYSSTAT?

Thanks.

 - Dana


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Diff. between FIRST_ROWS and INDEX hint - is there any?

2001-02-20 Thread dana mn


Is there any difference between the FIRST_ROWS hint
(which is said to "generally force the use of indexes" - Niemiec)
and the use of the INDEX hint (without specifying a particular
index)?

Is something else going on behind the scenes with FIRST_ROWS or is this
gratuitous bloat that shouldn't be in the optimizer? (or a placeholder
for future innovation)?

Thanks very much.

 - Dana


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