Tcp/ip Port Change

Nov 8, 2006

I installed a new instance and changed the default tcp/ip port and configured the applications. based on request i have changed the port to default 1433. now the problem is, the instance is not coming up. Then I restored the port now its working fine. But the application user wants 1433. could you please tell me why the instances is not comming up if the port is 1433? Thanks in advance

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Change PORT

Jan 31, 2003

Is there any way that I can avoid using 1433,1434 port on the clustered servers?

I have a active/passive (SQL1-active,SQL2-passive) cluster server and another active/passive cluster (SQL2-passive,SQL1-active).

(Its a Quassi active/active server)

I want to change all the sql server ports to other than 1433 and 1434.

Should I change in the registry
Localmachine-software-microsoft-mssqlserver-client-supersocketnetlib-tcp

or
Localmachine-software-microsoft-mssqlserver-mssqlserver-supersocketnetlib-tcpport

or
anywhere else?

Any suggestions are always welcome

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Apr 22, 2004

How many people have actually change their sql port from 1433 to something else

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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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Aug 7, 2007

Hi there,
I want to change the default sql-server port number 1433 to a new one. Can i do that? If yes, how?
Also, i have noticed that there is no port number option in the sql server 2005 management studio login window. So, what if the server has changed its port number?
Any suggestions would be appreciated. thanks

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Jul 4, 2002

Hello ,

How can i define a different TCP/IP port number , other than the default 1433; to replicate the database over a firewall on the source and the destination servers ? My source servers are SQL SERVER 7.0 with SP3 on Windows NT Server 4.0 and the destination servers are SQL 2000 with SP2 on Windows 2000 .

Where do i have to make changes in SQL server and Windows NT ? And further how secured it is to use this way for security ?

Can i get some on this matter please .

Thanks in advance
Sandra .

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Jul 15, 2004

hai all,
I need to change the default port number of the SQL server from 1433 to some other port number. i know that it can be done thru SERVER NETWORK UTILITY. Can some one confirm that. It will be helpful.
Also i want to make sure that port to given is free port. how can i find that particular port is free.

Thanking in Advance, awaiting Quick response.

Signing Off
Venkatesh.V

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Mar 8, 2007

Hi,I want the change the SQL listen port of a named 2005 sql instance.Is there a way I can run an sql query against the named instance whichgives me back which registry setting I need to use.so MSSQL.1 MSSQL.2 or MSSQL.3Or is there another way I can set the listenport through script orvbscript for only a specific named instance so if there are other sqlserver instances running they don't get affected.Thanks Bob

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SQL 2012 :: SSMS Not Connect After Change Port 1433

Feb 19, 2015

Version: SQL SERVER 2012 enterprise edition and SP2.

Due to one of the security reason, I have changed default port 1433 to another port number in configuration manger tools->protocols for MSSQLSERVER->TCP/IP --> IP ALL section mention another port number.

After restarted service, SQL SSMS able to connect server itself and new port number also LISTENING.

But SQL client SSMS not connected to one of the PC side after changing default port.

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Feb 27, 2007

Hi, I hope someone can help me!   I changed the TCP port that the default instance of SQL 2005 x64 SP1 is listening on and now SQL server won't start as the port is being used - no problem I say to myself, I'll just change it again, however I can't!  

My problem is that I can not change the TCP Port back again using Configuration Manager - no matter what values I put in, after a restart of the instance it comes up with this in the IP Addresses tab for TCP/IP Properties and SQL Server won't start:

IP1
Active   Yes
Enabled   No
IP Address  aaa.bbb.ccc.111
TCP Dynamic Ports
TCP Port  0

IP2
Active   Yes
Enabled   No
IP Address  aaa.bbb.ccc.222
TCP Dynamic Ports
TCP Port  0

IP3
Active   Yes
Enabled   No
IP Address  aaa.bbb.ccc.333
TCP Dynamic Ports
TCP Port  0

IP4
Active   Yes
Enabled   No
IP Address  10.1.1.1
TCP Dynamic Ports
TCP Port  0

IP5
Active   Yes
Enabled   No
IP Address  127.0.0.1
TCP Dynamic Ports
TCP Port  0

IPALL
TCP Dynamic Ports 2020
TCP Port  2020

Interestingly, the ip address that the server is listening on aaa.bbb.ccc.444 is not reported in the list of IP addresses in the configuration manager for this instance, yet it is when I view the available IP addresses for the other two instances - is this significant?

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.

I used the same method to change this default instance as I did for a named instance on a similarly configured cluster and it worked fine.   How to fix this?

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.
2007-02-27 12:03:17.75 Server      Error: 17182, Severity: 16, State: 1.
2007-02-27 12:03:17.75 Server      TDSSNIClient initialization failed with error 0x2740, status code 0xa.
2007-02-27 12:03:17.75 Server      Error: 17182, Severity: 16, State: 1.
2007-02-27 12:03:17.75 Server      TDSSNIClient initialization failed with error 0x2740, status code 0x1.
2007-02-27 12:03:17.75 Server      Error: 17826, Severity: 18, State: 3.
2007-02-27 12:03:17.75 Server      Could not start the network library because of an internal error in the network library. To determine the cause, review the errors immediately preceding this one in the error log.
2007-02-27 12:03:17.77 Server      Error: 17120, Severity: 16, State: 1.
2007-02-27 12:03:17.77 Server      SQL Server could not spawn FRunCM thread. Check the SQL Server error log and the Windows event logs for information about possible related problems.

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Ok,

The Scenario is as follows:

24/7 Production Call Centre server running NT4.0 and SQL 6.5 with all the latest service packs.

SQL mail fails(with dull regularity) and the SQL server services stop.

When the SQL server Services are restarted an error message appears stating that Port 1433 is in use after which nobody can connect via TCP/IP. Obviously the port believes the previous SQL session is still running, and won't release the port to the "New Application requesting it".

On a unix system you can force a port reset so you don't need to shutdown and restart the box. Can you do this from either SQL or NT?

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Shared memory and Named Pipes do though.

I checked the Server Network Utility and I see TCP/IP listed right under Named Pipes and I see that the default port is 1433.

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----------------------------------
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===================================

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