Thread: Connecting to a remote db server
I've installed postgres 9.2 on a server, call it db01. I now want to access postgres from my app server, call it app01.
What do I install on the app01 server? I've installed postgres 9.2 on it and set the postgresesql.conf file's listen_address to a value of '*' on both machines. I've also modified the pg_hba.conf file to be wide open for now on both machines.
It seems that something else is missing or needs to be done. Googling wasn't much help, the results weren't current.
Any help would be appreciated. Thanks.
Kevin Struckhoff
kstruckhoff@ebay.com
Struckhoff, Kevin wrote: > I've installed postgres 9.2 on a server, call it db01. I now want to access postgres from my app server, call it app01. > > What do I install on the app01 server? I've installed postgres 9.2 on it and set the postgresesql.conf file's listen_addressto a value of '*' on both machines. I've also modified the pg_hba.conf file to be wide open for now on bothmachines. > > It seems that something else is missing or needs to be done. Googling wasn't much help, the results weren't current. What's your operating system? There are two separate pieces, client and server. On the application side you don't need the server packages, so normally there's no postgresql.conf file there at all, and no pg_hba.conf either; both are server-side only configuration files. You just need libpq, and whatever client libraries your apps use. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
"Struckhoff, Kevin" <kstruckhoff@ebay.com> wrote: > I've installed postgres 9.2 on a server, call it db01. I now want > to access postgres from my app server, call it app01. > > What do I install on the app01 server? I've installed postgres > 9.2 on it and set the postgresesql.conf file's listen_address to > a value of '*' on both machines. I've also modified the > pg_hba.conf file to be wide open for now on both machines. The postgresesql.conf and pg_hba.conf files aren't used on the client side -- those only matter on the server. > It seems that something else is missing or needs to be done. > Googling wasn't much help, the results weren't current. How are you trying to connect, and what happens when you try? http://wiki.postgresql.org/wiki/Guide_to_reporting_problems -- Kevin Grittner EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
Struckhoff, Kevin wrote: > Sorry, rhel 5.8. so there is a separate client install package? Yes; on RHEL the library package is called postgresql-libs or something similar, while the client package containing the psql utility is just "postgresql". (The server lives in a package called postgresql-server). This site might be helpful: http://yum.postgresql.org/ -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
Sorry, rhel 5.8. so there is a separate client install package? Kevin Struckhoff, TDWI Sr. IT Mgr, LA DR Operations kstruckhoff@ebay.com ebayenterprise.com o: 818.686.4719 | c: 818.968.0634 | The information contained in this electronic mail transmission is intended only for the use of the individual or entity namedin this transmission. If you are not the intended recipient of this transmission, you are hereby notified that any disclosure,copying or distribution of the contents of this transmission is strictly prohibited and that you should deletethe contents of this transmission from your system immediately. Any comments or statements contained in this transmissiondo not necessarily reflect the views or position of eBay Enterprise or its subsidiaries and/or affiliates. -----Original Message----- From: Alvaro Herrera [mailto:alvherre@2ndquadrant.com] Sent: Wednesday, July 10, 2013 3:23 PM To: Struckhoff, Kevin Cc: pgsql-admin@postgresql.org Subject: Re: [ADMIN] Connecting to a remote db server Struckhoff, Kevin wrote: > I've installed postgres 9.2 on a server, call it db01. I now want to access postgres from my app server, call it app01. > > What do I install on the app01 server? I've installed postgres 9.2 on it and set the postgresesql.conf file's listen_addressto a value of '*' on both machines. I've also modified the pg_hba.conf file to be wide open for now on bothmachines. > > It seems that something else is missing or needs to be done. Googling wasn't much help, the results weren't current. What's your operating system? There are two separate pieces, client and server. On the application side you don't need the server packages, so normally there's no postgresql.conf file there at all, and no pg_hba.conf either; both are server-side only configuration files. You just need libpq, and whatever client libraries your apps use. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
I'm trying to use the psql tool:
/home/postgres->psql test
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.5432"?
the answer of course is No..
Kevin Struckhoff, TDWI
Sr. IT Mgr, LA DR Operations
kstruckhoff@ebay.com ebayenterprise.com
o: 818.686.4719 | c: 818.968.0634 |
The information contained in this electronic mail transmission is intended only for the use of the individual or entity
namedin this transmission. If you are not the intended recipient of this transmission, you are hereby notified that any
disclosure,copying or distribution of the contents of this transmission is strictly prohibited and that you should
deletethe contents of this transmission from your system immediately. Any comments or statements contained in this
transmissiondo not necessarily reflect the views or position of eBay Enterprise or its subsidiaries and/or affiliates.
-----Original Message-----
From: Kevin Grittner [mailto:kgrittn@ymail.com]
Sent: Wednesday, July 10, 2013 3:25 PM
To: Struckhoff, Kevin; pgsql-admin@postgresql.org
Subject: Re: [ADMIN] Connecting to a remote db server
"Struckhoff, Kevin" <kstruckhoff@ebay.com> wrote:
> I've installed postgres 9.2 on a server, call it db01. I now want
> to access postgres from my app server, call it app01.
>
> What do I install on the app01 server? I've installed postgres
> 9.2 on it and set the postgresesql.conf file's listen_address to
> a value of '*' on both machines. I've also modified the
> pg_hba.conf file to be wide open for now on both machines.
The postgresesql.conf and pg_hba.conf files aren't used on the
client side -- those only matter on the server.
> It seems that something else is missing or needs to be done.
> Googling wasn't much help, the results weren't current.
How are you trying to connect, and what happens when you try?
http://wiki.postgresql.org/wiki/Guide_to_reporting_problems
--
Kevin Grittner
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
Struckhoff, Kevin wrote: > I'm trying to use the psql tool: > > /home/postgres->psql test > 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.5432"? > > the answer of course is No.. Oh, well, you need to specify the hostname or address of the remote server: psql -h db01 test Otherwise, it's just trying to connect to localhost, as you've seen. You might need to adjust pg_hba.conf on the db01 server to allow connections from your app01 client host. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
Review the postgresql.conf and chek the "listen_adress" parameter. listen_adress="localhost" Change localhost by * Example: listen_adress="*" Este mensaje ha sido enviado gracias al servicio BlackBerry de Movilnet -----Original Message----- From: Alvaro Herrera <alvherre@2ndquadrant.com> Sender: pgsql-admin-owner@postgresql.orgDate: Wed, 10 Jul 2013 19:06:23 To: Struckhoff, Kevin<kstruckhoff@ebay.com> Cc: Kevin Grittner<kgrittn@ymail.com>; pgsql-admin@postgresql.org<pgsql-admin@postgresql.org> Subject: Re: [ADMIN] Connecting to a remote db server Struckhoff, Kevin wrote: > I'm trying to use the psql tool: > > /home/postgres->psql test > 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.5432"? > > the answer of course is No.. Oh, well, you need to specify the hostname or address of the remote server: psql -h db01 test Otherwise, it's just trying to connect to localhost, as you've seen. You might need to adjust pg_hba.conf on the db01 server to allow connections from your app01 client host. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-admin mailing list (pgsql-admin@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
Ok, the aplication server and your laptop have the IP adress in the same subnet ? Este mensaje ha sido enviado gracias al servicio BlackBerry de Movilnet -----Original Message----- From: "Struckhoff, Kevin" <kstruckhoff@ebay.com> Date: Wed, 10 Jul 2013 23:45:01 To: javmendez1@gmail.com<javmendez1@gmail.com>; Alvaro Herrera<alvherre@2ndquadrant.com>; pgsql-admin-owner@postgresql.org<pgsql-admin-owner@postgresql.org> Cc: Kevin Grittner<kgrittn@ymail.com>; pgsql-admin@postgresql.org<pgsql-admin@postgresql.org> Subject: RE: [ADMIN] Connecting to a remote db server I already did that. In fact, it works fine for pgAdmin III access from my laptop to my db server. Kevin Struckhoff, TDWI Sr. IT Mgr, LA DR Operations kstruckhoff@ebay.com ebayenterprise.com o: 818.686.4719 | c: 818.968.0634 | The information contained in this electronic mail transmission is intended only for the use of the individual or entity namedin this transmission. If you are not the intended recipient of this transmission, you are hereby notified that any disclosure,copying or distribution of the contents of this transmission is strictly prohibited and that you should deletethe contents of this transmission from your system immediately. Any comments or statements contained in this transmissiondo not necessarily reflect the views or position of eBay Enterprise or its subsidiaries and/or affiliates. -----Original Message----- From: pgsql-admin-owner@postgresql.org [mailto:pgsql-admin-owner@postgresql.org] On Behalf Of javmendez1@gmail.com Sent: Wednesday, July 10, 2013 4:19 PM To: Alvaro Herrera; pgsql-admin-owner@postgresql.org; Struckhoff, Kevin Cc: Kevin Grittner; pgsql-admin@postgresql.org Subject: Re: [ADMIN] Connecting to a remote db server Review the postgresql.conf and chek the "listen_adress" parameter. listen_adress="localhost" Change localhost by * Example: listen_adress="*" Este mensaje ha sido enviado gracias al servicio BlackBerry de Movilnet -----Original Message----- From: Alvaro Herrera <alvherre@2ndquadrant.com> Sender: pgsql-admin-owner@postgresql.orgDate: Wed, 10 Jul 2013 19:06:23 To: Struckhoff, Kevin<kstruckhoff@ebay.com> Cc: Kevin Grittner<kgrittn@ymail.com>; pgsql-admin@postgresql.org<pgsql-admin@postgresql.org> Subject: Re: [ADMIN] Connecting to a remote db server Struckhoff, Kevin wrote: > I'm trying to use the psql tool: > > /home/postgres->psql test > 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.5432"? > > the answer of course is No.. Oh, well, you need to specify the hostname or address of the remote server: psql -h db01 test Otherwise, it's just trying to connect to localhost, as you've seen. You might need to adjust pg_hba.conf on the db01 server to allow connections from your app01 client host. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-admin mailing list (pgsql-admin@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin -- Sent via pgsql-admin mailing list (pgsql-admin@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
"Struckhoff, Kevin" <kstruckhoff@ebay.com> wrote: > From: Kevin Grittner [mailto:kgrittn@ymail.com] >> "Struckhoff, Kevin" <kstruckhoff@ebay.com> wrote: >>> I've installed postgres 9.2 on a server, call it db01. I now want >>> to access postgres from my app server, call it app01. >>> It seems that something else is missing or needs to be done. >> How are you trying to connect, and what happens when you try? > I'm trying to use the psql tool: > > /home/postgres->psql test > 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.5432"? Since you didn't specify a host, it's looking on your local machine. What happens if you run?: psql -h app01 test You can look at the connection options by running: psql --help ... or by reading the docs: http://www.postgresql.org/docs/current/interactive/app-psql.html ... or by using the man page, if available. By the way, I believe that most server distributions include all the client software, but you could probably find a client-only package on most platforms. -- Kevin Grittner EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
Thanks Alvaro, that works. Appreciate the help. Kevin Struckhoff, TDWI Sr. IT Mgr, LA DR Operations kstruckhoff@ebay.com ebayenterprise.com o: 818.686.4719 | c: 818.968.0634 | The information contained in this electronic mail transmission is intended only for the use of the individual or entity namedin this transmission. If you are not the intended recipient of this transmission, you are hereby notified that any disclosure,copying or distribution of the contents of this transmission is strictly prohibited and that you should deletethe contents of this transmission from your system immediately. Any comments or statements contained in this transmissiondo not necessarily reflect the views or position of eBay Enterprise or its subsidiaries and/or affiliates. -----Original Message----- From: Alvaro Herrera [mailto:alvherre@2ndquadrant.com] Sent: Wednesday, July 10, 2013 4:06 PM To: Struckhoff, Kevin Cc: Kevin Grittner; pgsql-admin@postgresql.org Subject: Re: [ADMIN] Connecting to a remote db server Struckhoff, Kevin wrote: > I'm trying to use the psql tool: > > /home/postgres->psql test > 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.5432"? > > the answer of course is No.. Oh, well, you need to specify the hostname or address of the remote server: psql -h db01 test Otherwise, it's just trying to connect to localhost, as you've seen. You might need to adjust pg_hba.conf on the db01 server to allow connections from your app01 client host. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
I already did that. In fact, it works fine for pgAdmin III access from my laptop to my db server. Kevin Struckhoff, TDWI Sr. IT Mgr, LA DR Operations kstruckhoff@ebay.com ebayenterprise.com o: 818.686.4719 | c: 818.968.0634 | The information contained in this electronic mail transmission is intended only for the use of the individual or entity namedin this transmission. If you are not the intended recipient of this transmission, you are hereby notified that any disclosure,copying or distribution of the contents of this transmission is strictly prohibited and that you should deletethe contents of this transmission from your system immediately. Any comments or statements contained in this transmissiondo not necessarily reflect the views or position of eBay Enterprise or its subsidiaries and/or affiliates. -----Original Message----- From: pgsql-admin-owner@postgresql.org [mailto:pgsql-admin-owner@postgresql.org] On Behalf Of javmendez1@gmail.com Sent: Wednesday, July 10, 2013 4:19 PM To: Alvaro Herrera; pgsql-admin-owner@postgresql.org; Struckhoff, Kevin Cc: Kevin Grittner; pgsql-admin@postgresql.org Subject: Re: [ADMIN] Connecting to a remote db server Review the postgresql.conf and chek the "listen_adress" parameter. listen_adress="localhost" Change localhost by * Example: listen_adress="*" Este mensaje ha sido enviado gracias al servicio BlackBerry de Movilnet -----Original Message----- From: Alvaro Herrera <alvherre@2ndquadrant.com> Sender: pgsql-admin-owner@postgresql.orgDate: Wed, 10 Jul 2013 19:06:23 To: Struckhoff, Kevin<kstruckhoff@ebay.com> Cc: Kevin Grittner<kgrittn@ymail.com>; pgsql-admin@postgresql.org<pgsql-admin@postgresql.org> Subject: Re: [ADMIN] Connecting to a remote db server Struckhoff, Kevin wrote: > I'm trying to use the psql tool: > > /home/postgres->psql test > 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.5432"? > > the answer of course is No.. Oh, well, you need to specify the hostname or address of the remote server: psql -h db01 test Otherwise, it's just trying to connect to localhost, as you've seen. You might need to adjust pg_hba.conf on the db01 server to allow connections from your app01 client host. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-admin mailing list (pgsql-admin@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin -- Sent via pgsql-admin mailing list (pgsql-admin@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin