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How to connect to SQL server without using ODBC?

Posted on 2016-09-14
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Last Modified: 2016-09-16
Hi,

I have an application running in Linux server which use ODBC to connect on Windows 2008 SQL server but I got an SSL error.

To eliminate any possibilty that error is from ODBC is it possible to test the connection without ODBC? Sorry I'm not too familiar with SQL that's why I need your help.

Thanks
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Question by:SAM2009
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Expert Comment

by:Dave Baldwin
ID: 41799150
I don't know why you would get an SSL error.  What programming language are you using?
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Assisted Solution

by:DPatel
DPatel earned 200 total points
ID: 41799151
Use the below connection string:

@db->setDatabaseName("Driver={SQL Server Native Client 11.0};Server=<ip/host>;Database=<database>;Uid=<userid>;Pwd=<password>;")@
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Author Comment

by:SAM2009
ID: 41799154
Honestly which program language it's used I don't know. The only thing that interest me for now is how to test the connection without ODBC?

Thanks Dhara but beside that cmd is there any tool that I can use to test myself on Windows?
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Expert Comment

by:DPatel
ID: 41799156
It's ASP.NET
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Author Comment

by:SAM2009
ID: 41799159
When it uses SSL to connect on SQL server does it mean that SSL certificate should be installed on SQL server?
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Expert Comment

by:DPatel
ID: 41799164
In C++ You can connect using ODBC without a DSN using SQLDriverConnect. Specify the name of an installed driver in the connection string. A SQL Server Native client 11 example:

Driver={SQL Server Native Client 11.0};Server=SqlHostName;Database=SomeSqlDatabase;UID=YourUserName;PWD=YourPassword

Code snippet:

retcode = SQLDriverConnect(hdbc
    , NULL
    , (SQLCHAR*)InConnectionString
    , (SQLSMALLINT)sizeof(InConnectionString)
    , (SQLCHAR*)OutConnectionString
    , (SQLSMALLINT)sizeof(OutConnectionString)
    , (SQLSMALLINT*)StringLength2Ptr
    , (SQLUSMALLINT)DriverCompletion
    );
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Expert Comment

by:arnold
ID: 41799173
If encryption of the connection required, you can set the OpenSSL.conf not to validate the certificate which is likely what the issue is the certificate presented in the one ton can not be validated no thus the connection drops.

To test you have to have info on what you are using. Likely freetds.

The example provided is for a Windows system.

Adding the SQL server cert is trusted would eliminate the error......

Double check whether your setup is actually using web based XML queries to the DB.
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Author Comment

by:SAM2009
ID: 41799176
Correct me if I'm wrong but to be able to use an SSL connection on SQL server a certificate is required right on SQL server? Because I don't see any certificate.
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Expert Comment

by:arnold
ID: 41799204
Look within the data for, there should certs there. Check the TCP/ip in the SQL server configuration dealing with encryption...

Did it work before and only stopped recently or is it the first setup...
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Author Comment

by:SAM2009
ID: 41799568
When you said look withing the data, what you meant?
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Expert Comment

by:arnold
ID: 41799766
Your existing application, how is it interacting/connecting to the DB.
On linux, what programing language is being used is this a PHP page, python, tcl, etc.

When do you see an SSL error and from what application/interface?
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Author Comment

by:SAM2009
ID: 41800321
It's a third party application.

But what I really need is that someone could confirm if ssl connection on sql server needs a cert installed on that server.

Could you just confirm that please?
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Expert Comment

by:arnold
ID: 41800346
There is no way to confirm that other than looking on the SQL server to see whether it requires an encrypted connection.
Where and when do you see the SSL connection error?
The third party application might as part of its process have to validate the licensing meaning it has to connect to the vendor's secure site and that is where you are getting the SSL connection error, i.e. the URL for license validation has issues.
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Accepted Solution

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arnold earned 300 total points
ID: 41800349
Here is the technet article that you can follow to check whether your SQL server connection requires encryption...

https://technet.microsoft.com/en-us/library/ms189067(v=sql.105).aspx

Sql2008R2
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Author Comment

by:SAM2009
ID: 41800908
SSL connection port to Windows SQL server is it tcp/1433 or this port is used also for non ssl connection?
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Expert Comment

by:arnold
ID: 41800945
I think it will remain 1433 the client and server negotiate if to encrypt or not. Or server can require encryption.
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Author Closing Comment

by:SAM2009
ID: 41802453
Thanks for your hep!
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