Re: psql connection issue

FWIW, you could also use an IP connection to Postgres instead of the local socket.

On 10/8/14, 6:34 PM, Stephen Davies wrote:
> This is not the same issue.
> However, I had already disabled SELinux for other reasons.
>
> The actual cause of my issue was the "new" private tmp facility in systemd startup of httpd. This makes the PostgreSQL socket invisible to CGI scripts.
>
> We have survived for many years without this before migrating to CentOS 7 so I simply disabled this too and all came good.
>
> Cheers and thanks,
> Stephen
>
> On 08/10/14 23:49, Adrian Klaver wrote:
>> On 10/07/2014 09:10 PM, Stephen Davies wrote:
>>> The permissions on the socket are 777 owner/group postgres.
>>>
>>> I installed the 9.3 onto the Centos 7 server using the repo at
>>> postgresql.org.
>>>
>>> (http://yum.postgresql.org/9.3/redhat/rhel-$releasever-$basearch)
>>>
>>> There is no /var/run/postgresql and find cannot find another socket
>>> anywhere else.
>>
>> Sounds similar to this:
>>
>> Long version:
>>
>> http://serverfault.com/questions/609947/database-connection-to-postgresql-refused-for-flask-app-under-mod-wsgi-when-start
>>
>>
>> Short version:
>>
>> Disable SELinux
>>
>>
>>>
>>> Cheers and thanks,
>>> Stephen
>>>
>>> On 08/10/14 14:32, Tom Lane wrote:
>>>> Stephen Davies <sdavies(at)sdc(dot)com(dot)au> writes:
>>>>> I am in the process of migrating a bunch of databases and associated CGI
>>>>> scripts from 9.1.4 to 9.3 (and from 32-bit to 64-bit).
>>>>
>>>>> The database migration has been successful but I have an issue with psql
>>>>> connections from CGI scripts.
>>>>
>>>>> I can connect to the 9.3 server locally with psql from the command
>>>>> line, with
>>>>> psql from other boxes on the LAN via TCP, via JDBC from programs and
>>>>> servlets
>>>>> but cannot connect locally via CGI.
>>>>
>>>>> If I run any of the CGI scripts from the command line they work but when
>>>>> invoked by Apache, they fail with the usual question as to whether
>>>>> anything is
>>>>> listening on socket /tmp/.s.PGSQL.5432.
>>>>
>>>> Some Linux variants think it improves security to run daemons like apache
>>>> in a context where what the daemon sees as /tmp has been mapped somewhere
>>>> else.
>>>>
>>>> If you're running one of these platforms, the Postgres server and libpq
>>>> distributed by the vendor will have been hacked to cope, typically by
>>>> agreeing that the socket location is something like /var/run/postgresql/
>>>> rather than /tmp. I'm guessing your 9.3 installation was self-built
>>>> and hasn't been configured that way.
>>>>
>>>> regards, tom lane
>>>>
>>>
>>>
>>
>>
>
>

--
Jim Nasby, Data Architect, Blue Treble Consulting
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