Re: Connection string - Mailing list pgsql-general

From Harpreet Dhaliwal
Subject Re: Connection string
Date
Msg-id d86a77ef0608150911n6d7f254p915cf71691097b90@mail.gmail.com
Whole thread Raw
In response to Re: Connection string  (Michael Fuhr <mike@fuhr.org>)
Responses Re: Connection string  ("Harpreet Dhaliwal" <harpreet.dhaliwal01@gmail.com>)
List pgsql-general
Hi Micheal,
sudde2nly a problem has cropped up in my connection.
Its kind of strange.

ECPGdegug(1, stderr) says

[9852]: connect: cold not open database dbxyz on 192.168.0.123 port 5432 for user jsb in line 16
     could not connect to server: No route to host
     Is the server running on host "192.168.0.110" and accepting
     TCP/IP connections on port 5432?

My server is very much running.
I also made sure that TCP/IP connection is being accepted on port 5432 using nmap -sS localhost in my database server.

Don't know  whats wrong now

Also, just an observation (don't know if that is the cause or not) In my clinet machine while compiling my test.c file using
gcc -o test test.c -lecpg -L/usr/lib/pgsql
there's not pgsql directory in /usr/lib.
Where exactly do i have to do this linking thing and to what I have to link it.

Thanks
~Harpreet

On 8/13/06, Michael Fuhr <mike@fuhr.org> wrote:
On Sun, Aug 13, 2006 at 07:07:11PM -0400, Harpreet Dhaliwal wrote:
> Problem was with pg_hba.conf file
>
> ECPGdebug(1, stderr); showed that in pg_hba.conf there was setting for
> localhost only and not for other ip addresses.
>
> I had to change the configuration for IPV4 local connections
>
> It should have been something like
>
> host    all     all 192.168.0.0/24   trust
> instead of
> host   all     all   127.0.0.1/32   trust (which is meant for localhost
> only)
>
> I think i got it...right?

You might want to add 192.168.0.0/24 on another line rather than
replacing 127.0.0.1.  And allowing "trust" connections is bad
security practice because anybody on one of the allowed IP addresses
could connect as any user without being challenged for a password.
Consider using a stronger authentication method and modifying the
client code accordingly.

http://www.postgresql.org/docs/8.1/interactive/auth-methods.html

--
Michael Fuhr

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