AW: failed connection attempts in listner.log file
Date: Thu, 27 Jan 2022 17:15:00 +0100 (CET)
Message-ID: <1643300100878.7941961.a7e591f835c159cd84e6674379578b7df4214254_at_spica.telekom.de>
Thanks Nenad.
So one had to enable this explicitly. I was just wondering what the 0 at
the end of the line in the listener.log file would mean.
Best regards
-----Original-Nachricht-----
Hi Ahmed
Listener log contains entries for TCP connections to the listener process.
Listener doesn’t know about logon status, because it just forks a dedicated
server process that handles authentication in the database.
You’d need to configure audit session for tracking failed logons.
Best regards,
Nenad
From: oracle-l-bounce_at_freelists.org <oracle-l-bounce_at_freelists.org> On
Behalf Of ahmed.fikri_at_t-online.de
Ahmed
Betreff: RE: failed connection attempts in listner.log file
Datum: 2022-01-27T16:59:41+0100
Von: "Noveljic Nenad" <nenad.noveljic_at_vontobel.com>
An: "ahmed.fikri_at_t-online.de" <ahmed.fikri_at_t-online.de>, "list, oracle"
<oracle-l_at_freelists.org>
Sent: Donnerstag, 27. Januar 2022 16:54
To: list, oracle <oracle-l_at_freelists.org>
Subject: failed connection attempts in listner.log file
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Hi all,
I'm trying to find out non-successful connection attempts In the listener.log file I see entries like this:
27-JAN-2022 15:18:38 *
(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=O12CPDB)(CID=(PROGRAM=C:\Program?Files\PLSQL?Developer?12\plsqldev.exe)(HOST=LAPTOP-2LQOLENG)(USER=kirux)))
* (ADDRESS=(PROTOCOL=tcp)(HOST=172.17.0.1)(PORT=60836)) * establish *
O12CPDB * 0
27-JAN-2022 15:30:24 *
(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=O12CPDB)(CID=(PROGRAM=C:\Program?Files\PLSQL?Developer?12\plsqldev.exe)(HOST=LAPTOP-2LQOLENG)(USER=kirux)))
* (ADDRESS=(PROTOCOL=tcp)(HOST=172.17.0.1)(PORT=60922)) * establish *
O12CPDB * 0
First entry when trying to log in with a wrong PW and the second one with
the right one. Both looks similar.
Is this normal and is there any way find out non-successful connection attempts? The example was done using a 12.2.0.1 installed in a docker and the host is a windows machine.
Best regards
Ahmed
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