SQL Server Port Change

Jan 30, 2008

Hello All,

We have default instance "MSSQLSERVER" with Port number 1433. We Installed another Instance "MGMT" on the same windows server, it came as same Port number "1433".

We decided to Change the Port number for Instance "MGMT".

1. We changed the port number for "MGMT" to like "1234"

2. After the change we did telnet to "MGMT" Instance with "1433", it worked.

3. Then we changed the Port number for Instance "MSSQLSERVER" also to like "4321".

4. After change of these setting and followed with rules framed in link as said: http://www.databasejournal.com/features/mssql/article.php/3689846

5. Now we did telnet with changed port number, it works fine.

6. We can not do telnet with Port number 1433 for both Instances "MSSQLSERVER" and "MGMT".. This is fine, what we want, and what we intent to do...

Question to MVP OR SQL Gurus:

A) If you want to change port number to Second Instance, shall we need to change for Default Instance?

B) How the port numbers will be configured? please advice.

Thanks, Jay

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Hi there,
I want to change the default sql-server port number 1433 to a new one. Can i do that? If yes, how?
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Is there any way that I can avoid using 1433,1434 port on the clustered servers?

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Signing Off
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IPALL
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I have tried failing to the other node, changing it there, changing it at the console and also while logged onto the the virtual machine remote desktop, rebooting both nodes, etc, etc.   There are two other instances on this cluster that are still working fine but I hvae not attempted to change the TCP ports they listen on.

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Regards, Mike

2007-02-27 12:03:17.69 Server      Server is listening on [ aaa.bbb.ccc.444<ipv4> 2020].
2007-02-27 12:03:17.71 spid9s      Starting up database 'tempdb'.
2007-02-27 12:03:17.72 Server      Error: 26023, Severity: 16, State: 1.
2007-02-27 12:03:17.72 Server      Server TCP provider failed to listen on [ aaa.bbb.ccc.444<ipv4> 2020]. Tcp port is already in use.
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2007-02-27 12:03:17.77 Server      Error: 17120, Severity: 16, State: 1.
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