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 Problem connecting to SQL Server over firewall

Author  Topic 

imarchenko
Yak Posting Veteran

57 Posts

Posted - 2010-08-13 : 14:32:06
Hello!

I am troubleshooting connectivity from client computer to SQL Server 2008 named instance. We have opened 1433 and 1434 ports to allow connectivity. I am able to connect using <SQLServerName>\<InstanceName>,<PortNumber> syntax. But I would like to connect without specifying port number. SQL Server Browser service is running on SQL Server. Also, IPall settings in TCP/IP protocol is configured to use dynamic port in question.
I am not sure if there any other ports that I have to open to allow connection without specifying port nunber. I am able to connect using <SQLServerName>\<InstanceName> from clients that don't go through firewall (for exmaple, inside SQL Server network). That makes me think this is firewall restrictions.
Any help is greatly appreciated.

Igor

russell
Pyro-ma-ni-yak

5072 Posts

Posted - 2010-08-13 : 15:00:37
Created alias in SQL Configuration manager?
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tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2010-08-13 : 15:01:02
If it works with specifying the port, then you can simply add an alias.

To do that, you can use SQL Server Configuration Manager or regedit. I prefer regedit:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSSQLServer\Client\ConnectTo
New string value
Value name = the name you want to use when connecting, perhaps ServerName\InstanceName, but it can be anything really
Value data = DBMSSOCN,ServerName,PortNumber

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

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