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Posted to derby-dev@db.apache.org by Kathey Marsden <km...@Sourcery.Org> on 2004/09/16 18:58:20 UTC
Issue with Network Server port number
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Hello All,
An issue with the Network Server default port number has recently come
to my attention. The default port number for Network Server is 1527. I
was told at one point that it was the well known port for DRDA, but that
is in fact does not seem to be the case. The standard says the default
is 446. The history of where 1527 came from is now lost but 1527 is
registered to Oracle.
So the options as I see it are:
A) Change Network Server to default to 446. This will affect existing apps.
B) Register a new port for Derby and make that the default. Again we
affect existing apps.
C) Leave it at 1527 and print some sort of warning to the log/console,
and document that users should change it. I don't know if this is
acceptable or not.
D) Something else?
Please post your thoughts on this issue.
Reference:
http://www.iana.org/assignments/port-numbers
http://www.opengroup.org/dbiop (DRDA Standard)
http://osi.oracle.com/CollaborationSuite9041/doc/install/ports.htm
http://www.chebucto.ns.ca/~rakerman/oracle-port-table.html
Excerpts from the DRDA Version 3 Technical Standard
Section 13.6.2.6
Usage of PORT for DRDA Service Rules
TPN1 Usage The PORT identifying DRDA application servers and database
servers must support the registered TCP/IP well known port for a
DRDAapplication server or any non-registered TCP/IP port.
and then in
13.6.3 Service Names
The default DRDA well known port for an application server is 446. The
default well known port must be supported at each IP address that has an
application server providing DRDA capabilities.
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Re: Issue with Network Server port number
Posted by Jan Hlavatý <hl...@code.cz>.
Kathey Marsden wrote:
> database server listening on port 1527". Can't seem to find it now but
> the other day I saw some Oracle document that said something like "Use
> an Oracle registered port such as 1527."
A quick look at the IANA assigned ports registry show that port 1527 is really assigned to oracle:
http://www.iana.org/assignments/port-numbers
tlisrv 1527/tcp oracle
tlisrv 1527/udp oracle
But that can't stop anyone from using that port number for something else,
it is not legally binding or something ;-)
Jan
Re: Issue with Network Server port number
Posted by Kathey Marsden <km...@Sourcery.Org>.
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Edward Rayl wrote:
> I have never once hear of 1527 being used by Oracle or any of its
customers.
>
> Your use of port 1527 should be a non-issue to Oracle users.
Well that certainly is encouraging news, so perhaps Dan's suggestion
that Oracle might be willing to reassign the port is not as unlikely as
I had thought. I of course, wouldn't know where to begin with a request
like that.
Thanks
Kathey
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Re: Issue with Network Server port number
Posted by Edward Rayl <er...@bellsouth.net>.
Kathey Marsden wrote:
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>
>
>>>>From a quick look at Oracle's pages it seems that Oracle doesn't use
>>this port anymore? Anyone on the list from Oracle or have Oracle
>>contacts? Maybe Oracle would re-assign the port to ASF for Derby?
>>
>>Dan.
>>
>>
>In a quick search, I did tend to see it in configuration examples e.g.
>http://www.oracle.com/technology/products/discoverer/pdf/4i_generic_connectivity.pdf
>and there seem to be a lot of oracle forum questions like "I have a
>database server listening on port 1527". Can't seem to find it now but
>the other day I saw some Oracle document that said something like "Use
>an Oracle registered port such as 1527."
>
>It would be nice if they would give it up, but I think probably not.
>
>
I worked for Oracle for 7 years. Port 1521 is the only one you should
be really concerned about. Port 1526 is considered the secondary backup
port for the listener. I really believe the reference to port 1527 in
the document above is a typographical error, and should have been 1521.
I have never once hear of 1527 being used by Oracle or any of its customers.
Your use of port 1527 should be a non-issue to Oracle users.
Ed
Re: Issue with Network Server port number
Posted by Kathey Marsden <km...@Sourcery.Org>.
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>
>>>From a quick look at Oracle's pages it seems that Oracle doesn't use
> this port anymore? Anyone on the list from Oracle or have Oracle
> contacts? Maybe Oracle would re-assign the port to ASF for Derby?
>
> Dan.
In a quick search, I did tend to see it in configuration examples e.g.
http://www.oracle.com/technology/products/discoverer/pdf/4i_generic_connectivity.pdf
and there seem to be a lot of oracle forum questions like "I have a
database server listening on port 1527". Can't seem to find it now but
the other day I saw some Oracle document that said something like "Use
an Oracle registered port such as 1527."
It would be nice if they would give it up, but I think probably not.
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Re: Issue with Network Server port number
Posted by Daniel John Debrunner <dj...@debrunners.com>.
Kathey Marsden wrote:
> Hello All,
>
> An issue with the Network Server default port number has recently come
> to my attention. The default port number for Network Server is 1527. I
> was told at one point that it was the well known port for DRDA, but that
> is in fact does not seem to be the case. The standard says the default
> is 446. The history of where 1527 came from is now lost but 1527 is
> registered to Oracle.
>>From a quick look at Oracle's pages it seems that Oracle doesn't use
this port anymore? Anyone on the list from Oracle or have Oracle
contacts? Maybe Oracle would re-assign the port to ASF for Derby?
Dan.