Re: Finding TNS listener ports

How many listeners are running? Typically, the multiple DBs can use the same listener. So the 25 db’s may all be using default LISTNER.

To see what listener processes are running:

$ ps -ef|grep lsnr
 14700 12995 0 11:32 pts/2 00:00:00 grep lsnr  16872 1 0 Jan07 ? 00:34:57 /u01/app/oracle/product/19.0.0/dbhome_1/bin/tnslsnr LISTENER -inherit

To see what the listener is doing…
/u01/app/oracle/product/19.0.0/dbhome_1/bin/lsnrctl status LISTENER|grep PORT

Or…
/u01/app/oracle/product/19.0.0/dbhome_1/bin/lsnrctl status LISTENER|grep PORT

Should give you an idea of how many listeners, and what ports are listening…

Courtney Llamas | Strategic Customer Program | +1.713.374.2102 Oracle Manageability <https://www.oracle.com/manageability/>

> On Jul 29, 2020, at 1:26 PM, Bala <oratips_at_gmail.com> wrote:
>
> Gurus,
>
> We have over 25 Oracle 12cR2 databases with listeners running on one solaris server.
>
> Is there any quick way to find ports of running listeners in Solaris ? ( some unix level command to execute and get listing of running listeners with ports ?)
>
> Thank you for your time.
> Best
> --
> Bala Rao

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