Re: Connection Refused Error

On Monday 09 March 2009 4:11:49 pm JohnD wrote:
> Hi,
>
> I have two "identical" servers running CentOS 5.2 with PostgreSQL 8.3.5
> installed on both. Prior to a reboot this morning, I was able to
> connect, remotely, to both of them and doing telnet <serve-rname> 5432
> brought up a prompt for them as well.
>
> However, I am now in the unfortunate situation of not being able to
> connect remotely to one particular server and cannot for the life of me
> figure out why I am getting a connection refused:
>
> Connection refused. Check that the hostname and port are correct and
> that the postmaster is accepting TCP/IP connections.
>
> I can ssh into the server and do a psql <db-name> from the
> /var/lib/pgsql command prompt, as user postgres. But, when I try to use
> a different user (psql -U user -p <db-name>), from the same prompt, I get:

This psql -U user -p <db-name> should be psql -U user -d <db-name>

>
> psql: could not connect to server: No such file or directory
> Is the server running locally and accepting
> connections on Unix domain socket "/tmp/.s.PGSQL.0"?
>
> When I look into the /tmp directory for the domain socket, I see:
>
> srwxrwxrwx 1 postgres postgres 0 Mar 9 17:44 .s.PGSQL.5432
> -rw------- 1 postgres postgres 25 Mar 9 17:44 .s.PGSQL.5432.lock
>
> Also, here is the relevant piece of my pg_hba.conf file:
>
> local all all trust
> # IPv4 local connections:
> host all all 127.0.0.1/32 trust
> host all all 192.168.0.0/16 md5
> host all all 172.16.0.0/16 password # for a
> VMWare instance
>
> # IPv6 local connections:
> host all all ::1/128 trust
>
> And, lastly, I use the following script as the postgres user to start
> PostgreSQL from the command prompt, manually:
>
> #!/bin/bash
>
> ARGV=$1
> PG_HOME=/var/lib/pgsql
> PG_WORK_DIR=$PG_HOME/data
>
> if [ "$1" = "start" ]
> then
> pg_ctl -D $PG_WORK_DIR -l logfile start
> elif [ "$1" = "stop" ]
> then
> pg_ctl -D $PG_WORK_DIR stop
> fi
>
> Nothing, that I am aware of, has changed on this server that would
> prevent the remote connection. I have both SELinux and iptables
> disabled (off by default) since this is inside a firewall on a home
> network and is not available to the outside world.
>
> Any idea why I am no longer able to connect?
>
> Thanks for any and all help.
>
> John

--
Adrian Klaver
aklaver(at)comcast(dot)net