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IDS Forum

Re: Listener Not Started

Posted By: Fernando Nunes
Date: Sunday, 12 October 2014, at 5:11 p.m.

In Response To: Re: Listener Not Started (WAYNE SHEARER)

That's good.
Nevertheless the online.lo should have some info about the listener... on
the other hand, it usually contains messages when some "good configuration"
has an issue comming up. You had a bad configuration... I'd have to test to
see what happens.

As for the SQLHOSTS file structure it's very simple although some options
may be a bit more complex.

- 1st column: INFORMIXSERVER.
On the server side it should contain the names found in DBSERVERNAME and

-2nd column: The protocol
Informix can work with normal "SQLI" over TCP, "SQLI" over SSL, DRDA over
TCP and DRDA over SSL... so we need to tell the server and client "the
language" used in the listener

- 3rd column: The hostname
Can be a name which needs to be resolved (files, dns...) or an IP address
or a "*" which means any interface

- 4th column: The port or service name
If it's a number it is interpreted as a TCP port number. A name will be
resolved by looking up the /etc/services file.
I normally don't use names, as the port numbers are more explicit and I'm
yet to "feel" the advantages of using a name

- 5th column: options
That's were things may get complicated... It's a comma separated list of
options, which in most cases are a letter, an equal sign and a value.
k=1, s=1
(k is for keepalive, "s" is to define if it accepts no trusted relations,
trusted relations in private files, trusted relations in global files, if
it's PAM, if it's a port exclusively for replication etc.)

So I think it's pretty simple. But the manual (administration guide) has
all the details and examples

On Sun, Oct 12, 2014 at 1:30 AM, WAYNE SHEARER <> wrote:

> Thank you...Thank you...Thank you...
> Fernando, you did it again.
> I guess I still don't really understand the format of the sqlhosts file
> (after
> 15 years...unbelievable).
> I changed the 4th column to read "sqlexec" which is the service name from
> the
> /etc/services file that was assigned by Informix for this server's TCP
> service
> (port 9088). That immediately changed the lsof info and provided me a
> listener
> with the IP address of my host...and that allowed my Test Connection in the
> ODBC manager to work...and my app on the PC now connects to the Informix
> server.
> Tomorrow, I'll figure out how to get the firewalld to allow that port, so I
> can start the firewall again, and I should be in business.
> Thanks's another one you can chalk up to "SOLVED".
> I owe you,
> Wayne
> PS. I did check the online.log (failed to mention that to you), but there
> were
> no errors logged (since the error was ME...) :-)
> W.
> *******************************************************************************
> Forum Note: Use "Reply" to post a response in the discussion forum.

Fernando Nunes
My email works... but I don't check it frequently...


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