Re: client connection

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От Radu-Adrian Popescu
Тема Re: client connection
Дата
Msg-id 1016009718.1217.5.camel@rpopescu
обсуждение исходный текст
Ответ на client connection  ("Gill, Jeffrey L" <jeffrey.l.gill@intel.com>)
Список pgsql-admin
On Wed, 2002-03-13 at 03:33, Gill, Jeffrey L wrote:
I am trying to make my first connection from a client machine to a postresql
server machine.   What is the correct client command syntax to connect to
the server?  I do not want to attempt encryption yet so I am not using SSH
or stunnel - I trying the easiest configuration i.e. telnet?.

Specs:  Client RedHat 7.1  2.4.2-2 kernal everything build
            Server RedHat 7.1  2.4.2-2 kernal everything build with
Interchange 4.8 

Both of these hosts are on the same subnet and can ping each other.

I am learning Linux and Postgresql from scratch.

I have started the postmaster with '-i' option to allow TCP/IP connections.

I used the following command to do this and am using port 8888 to avoid lock
with port 5432. 
Not sure if I have to do this but I show a message saying 5432 was locked.  

pg_ctl -D /home/jeff/test -o '-i -p 8888'  restart

I edited the pg_hba.conf to allow any host from this subnet to connect i.e.
host	all	10.240.22.0 	255.255.255.0 	trust

The way I tried to connect as the client to the server was
telnet 10.240.22.203 8888

The response I get is 
Connected 10.240.22.203
Escape character is '^]'.

When I hit the return key I get
Invalid packet length Connection closed by foreign host.

What am I doing wrong or what else do I need to do?
Pardon my asking, but do you telnet www.postgresql.org 80 or do you use a web browser ?
What you're doing wrong is that you're trying to act as a postgresql client, instead of the default one (psql) or any other (say JDBC-based).
The postgresql protocol is propetary and you cannot simply telnet on it's port and expect to get right on with whatever is it you want to do. USE
A CLIENT instead.
You can however quickly verify that it accepts inbound TCP/IP connections.

Thanks,
Jeff


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Regards,

--
Radu-A. Popescu
CSA, DBA, Developer
www.aldratech.com

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