RE: Oracle rootkit
- From: "MacGregor, Ian A." <ian@xxxxxxxxxxxxxxxxx>
- To: "Li-Shan Cheng" <exriscer@xxxxxxxxx>
- Date: Mon, 30 Jan 2006 14:18:46 -0800
No, it does it without error. Of course I cannot "lsnrctl stat" it.
Ian
-----Original Message-----
From: Li-Shan Cheng [mailto:exriscer@xxxxxxxxx]
Sent: Thursday, January 26, 2006 1:14 PM
To: MacGregor, Ian A.
Cc: Jared Still; oracledba.williams@xxxxxxxxx; oracle-l
Subject: Re: Oracle rootkit
Dont you see this error?!
Error listening on:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=rac02.risc.com)(PORT=1522)))
TNS-12542: TNS:address already in use
TNS-12560: TNS:protocol adapter error
TNS-00512: Address already in use
Linux Error: 98: Address already in use
I have already a listener started at port 1522
On 1/26/06, MacGregor, Ian A. <ian@xxxxxxxxxxxxxxxxx> wrote:
Thanks I've never tried to start a listener remotely, and was wondering
why the start was not password protected. On our oracle 10 databases, Oracle
every once in a while decides to startup a second listener on the same port.
This happens sporadically but we get this on at least one daytabase very three
or four months. It may have something to do with OEM. Anyway, having two
listeners on the same port results in a denial of service.
Ian
-----Original Message-----
From: Jared Still [mailto:jkstill@xxxxxxxxx]
Sent: Thursday, January 26, 2006 9:12 AM
To: MacGregor, Ian A.
Cc: oracledba.williams@xxxxxxxxx <mailto:oracledba.williams@xxxxxxxxx>
; oracle-l
Subject: Re: Oracle rootkit
On 1/25/06, MacGregor, Ian A. <ian@xxxxxxxxxxxxxxxxx> wrote:
On a related topic, Oracle sometimes decides to startua second
listener on the same port; there by causing denial of service.
If you mean the server does this automatically, can you explain? I'm
not familiar with that.
Under Oracle 9i and before the password only provided protection
against shutting down the listener, not starting it up.
IIRC you can shut down the listener remotely, but need to be on the
server to start it.
This applies to unix and linux.
On windows, anyone with admin access can remotely stop/start the
listener through the Services applet.
--
Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist
--
//www.freelists.org/webpage/oracle-l
--
//www.freelists.org/webpage/oracle-l
Other related posts:
