Re: Oracle on AWS/ec2 - multiple listener

Maris is technically right, but allowing connections from the public internet is almost certainly a terrible idea. What is the business case here (if you can share of course)? You might wish to have 2 listeners on different ports so that you can do maintenance via the corporate listener, but its hard to see this as a good enough justification for me.

On Thu, Mar 22, 2018 at 10:15 AM, Maris Elsins <elmaris_at_gmail.com> wrote:

> Hi,
>
> I don't really understand why you need to have 2 listeners.
> I would set up one listener for that, similar to this:
>
> LISTENER=
> (DESCRIPTION=
> (ADDRESS_LIST=
> (ADDRESS=(PROTOCOL=tcp)(HOST=internal_ip_address)(PORT=1521))
> (ADDRESS=(PROTOCOL=tcp)(HOST=external_ip_address)(PORT=1521))))
>
>
> ---
> Maris Elsins
> _at_MarisElsins <https://twitter.com/MarisElsins>
> www.facebook.com/maris.elsins
>
>
>
> On Thu, Mar 22, 2018 at 12:09 PM, Sam K <dbinsight_at_gmail.com> wrote:
>
>> Hi All,
>>
>> We have an oracle database in AWS EC2( no rac) running with a single
>> listener configured
>> we want to attach a second NIC card to the instance and configure a
>> second listener to accept requests from the pubic internet only
>> so we will essentially have two listeners for the same DB (11g) - one
>> for internal private use (corporate network) configured
>> the other listener we want to configure it to allow public access , allow
>> it to accept incoming connection from the internet only
>> This listener configured on the new NIC will be configured thru firewall
>> and accept traffic from public internet.
>> Is it possible to have such a configuration
>> Or is it better to have a remote listener configuration for the external
>> access only and local listener for the internal traffic
>> Looking for tips/ guidance from the group
>>
>> --
>> Regards
>> Sam K
>>
>
>

-- 
Niall Litchfield
Oracle DBA
http://www.orawin.info

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