Thread: How to find compiled-in default port number?

On Tue, 2012-03-13 at 11:16 +0200, Виктор Егоров wrote:
> Greetings.
>
> Is there a way to find out the compiled-in port number?
>
Two ways, with Postgres running:
- Scan the server's ports with nmap.
- as root on the server, run "lsof | less" and look at the
  Postgres process(es).

Both are fast, so do both. If lsof shows the PostgreSQL port but nmap
doesn't, then you'll know its being blocked by a firewall.


Martin

On 03/13/2012 02:16 AM, Виктор Егоров wrote:
> Greetings.
>
> Is there a way to find out the compiled-in port number?
>
> I can parse `pg_config` output to check out port in cases port was
> actually specified.
>
> However if defaults had been used, is there any tool that will tell me
> the magic 5432 number
> or should I silently stick to this number in my scripts?

Not sure if this is what you want?:


This from Postgres 9.0.7.

test=> SELECT current_setting('port');
  current_setting
-----------------
  5432

test=> SELECT inet_server_port();
  inet_server_port
------------------
              5432

Be aware for inet_server_port() to work you have to connect in a method
other than Unix local socket. In other words something like:

psql -d test -U aklaver -h localhost


More information here:

http://www.postgresql.org/docs/9.0/interactive/functions-info.html

http://www.postgresql.org/docs/9.0/interactive/functions-admin.html


>
> Thanks in advance!
>
> --
> Victor Y. Yegorov


--
Adrian Klaver
adrian.klaver@gmail.com