Re: sslcompression / PGSSLCOMPRESSION not behaving as documented?

On 01/15/2015 01:02 PM, Maciek Sakrejda wrote:
> I'm having a hard time getting SSL compression working (or even figuring
> out why it's not working) with my local Postgres server. The setting [1]
> is documented to default to on, but according to the banner when I
> connect with psql, it's off. It's still off even if I explicitly set
> PGSSLCOMPRESSION=1:
>
> maciek@gamera:~$ PGSSLCOMPRESSION=1 psql -h localhost
> psql (9.4.0, server 9.2.9)
> SSL connection (protocol: TLSv1.2, cipher: DHE-RSA-AES256-GCM-SHA384,
> bits: 256, compression: off)
> Type "help" for help.
>
> Nothing interesting in the logs. As far as I can tell, my OpenSSL
> version is recent enough to support this:

Noticed you are using psql from 9.4 to connect to a 9.2 server.

You might want to try the 9.2 version of psql to see if that works?

>
> maciek@gamera:~$ ldd /usr/lib/postgresql/9.2/bin/postgres  | grep ssl
>      libssl.so.1.0.0 => /lib/x86_64-linux-gnu/libssl.so.1.0.0
> (0x00007f144a25d000)
>
> (is that the right way to check?)

I would use :

dpkg -l | grep openssl

Which on one of my 14.04 instances gives:

ii  openssl                          1.0.1f-1ubuntu2.8

>
> I'm running this on Ubuntu 14.04 with PGDG Postgres packages. Any ideas?
>
> Thanks,
> Maciek
>
> [1]: http://www.postgresql.org/docs/9.2/static/libpq-envars.html


--
Adrian Klaver
adrian.klaver@aklaver.com