RE: Question regarding Oracle listener port change

…unless your team knows how to set up honey pots and/or that port is subject to denial of service attacks  

there is some debate whether those can be effective  

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Jared Still Sent: Friday, April 05, 2019 8:25 PM
To: rakeshra.tr_at_gmail.com
Cc: Oracle-L Freelists
Subject: Re: Question regarding Oracle listener port change  

Changing port # is just security by obscurity , right?    

On Tue, Mar 26, 2019, 04:52 Rakesh Ra <rakeshra.tr_at_gmail.com> wrote:

Hi All,  

We have full rack exadata server X5 version with 11.2.0.4 version DB running on it.. We changed the port number of scan and local listener from 1521 to 1621.

I tried connecting to the database remotely using scan and default service with port 1521 , connection is going through. I also tried connecting to the database using scan and default service using 1621 port as well. With that also I am able to connect. Should I ideally get my connection request with port 1521 rejected with some TNS errors?? Or is this is expected??  

Regards,

Rakesh RA

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