Service Broker Security Question

May 22, 2006

If I have a stored procedure that is reading data in one database and writing it to another database (same instance) are there any extra grants that I must do. I do have a user created in both databases with the same certificate (backup and create certificate from the file system) and I've done the
GRANT AUTHENTICATE TO [SessionsServiceProcedureAudit];
GRANT EXECUTE ON <the cross database stored procedure>

Gary

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SQL Service Broker - Transport Security

Feb 20, 2007

If all my SQL Server instances are mutually trusted, am planning to implement transport layer security with Windows authentication. My query is that if I'm using Windows authentication do I need certificates to be created? Though I am using Transport security, I can achieve encryption by ENCRYPTION - ON in the Begin Dialogue conversation. I assume Message integrity using MD5 signatures are by default provided by Service broker irrespective of whichever service options we choose?

Can I have some article references on how these security mechanisms will impact the performace of Service broker communications?



Thanks a lot,

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Aug 24, 2007

Just tried to deploy my service broker solution to a test environment but got the following error:


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Any idea as to what this error message actually means and what I would have to do to get it to work?

Thanks

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Jan 10, 2008

I am using windows authentication to send messages from one server to another.

The user is a domain user that is sysadmin on both servers and db owner of each database.

The errors I see in porfiler are as follows


At target,
An error occurred while receiving data: '10054(error not found)'.

and the following at the initiator:
Connection handshake failed. An OS call failed: (8009030c) 0x8009030c(The logon attempt failed). State 67.


For what its worth, the script for my target endpoint is below, and access has been granted to public:


CREATE ENDPOINT [BROKER]
AUTHORIZATION [MYDOMAINmssqlssb]
STATE=STARTED
AS TCP (LISTENER_PORT = 4022, LISTENER_IP = ALL)
FOR SERVICE_BROKER (MESSAGE_FORWARDING = DISABLED
, MESSAGE_FORWARD_SIZE = 10
, AUTHENTICATION = WINDOWS NEGOTIATE
, ENCRYPTION = REQUIRED ALGORITHM RC4)



I've actually used these users/objects successfully dozens of times on a seperate server with many clients...I am just re-scripting the objects here on this new server. The new remote machine is an image of one of the original machines that was working fine (with new broker GUIDs).



Thanks for any insight.
John

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May 25, 2006

what is the difference between the Dialog security and the transport security?

If I disable the dialog security can the messages be sent to the a different SQL server instance. As the transport security will encrypt the messages.

If I don't create a certificate to be used by the transport security can the messages be sent to another SQL server instance?

Can a message be sent to another SQL Server instance without creating a REMOTE Service Binding?

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In Service Broker Message Dialog Security Is Not Available For This Conversation...

Jul 23, 2007

when ever I send my message thru Service Broker I am getting an error message like this "



"Dialog security is not available for this conversation because there is no remote service binding for the target service. Create a remote service binding, or specify ENCRYPTION = OFF in the BEGIN DIALOG statement."



This I found in sys.transmission_queue

Please reply with your comments

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May 22, 2007

hi all,

i m trying to send message between different server instance using service broker.

and for security purpose i am trying to create certificate. for that i have used makecert.exe and get a certificate and a private key. but when i am creating certificate using that file it is showing error

the code is --

CREATE CERTIFICATE ctfSourceServerMaster

FROM FILE = 'C:SourceServer.cer'

WITH PRIVATE KEY ( FILE = 'C:SourceServer.pvk', DECRYPTION BY PASSWORD = 'PrivateKeyPassword' )

ACTIVE FOR BEGIN_DIALOG = ON

GO

i have created the file SourceServer.cer' and SourceServer.pvk' by using makecert.exe tool.

the idea behind creating the certificate ctfSourceServerMaster is to give transport security.

I am running the particular script in the master database.

but still i am getting error

ERROR:----

The certificate, asymmetric key, or private key file does not exist or has invalid format.



If any body has any idea please help!!!!!!!!!!!

Thanks a lot in advance

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Sep 10, 2007

How to prevent the hang on the initator service broker if the target service broker is not started?

Our case has two service brokers (two databases), sometime, the target is need to turn off. But the sitation is the initator service broker (in fact, the message is sent from triggers) become hang, I want to prevent this case and continue to operation, and the messages should queue and will continue to send to target service broker when it startup. How should I do?

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Feb 16, 2008

Hello,          I receive this error  "The SQL Server Service Broker for the current database is not enabled, and as a result query notifications are not supported.  Please enable the Service Broker for this database if you wish to use notifications." I attach the database in Management Studio to query and enable the broker using the scrip below but to no avail. ALTER DATABASE DataName SET ENABLE_BROKER ‘''<<------successfulandSELECT is_broker_enabled FROM sys.databases WHERE name = 'Database name' ‘'''<<-------value is 1 Global.asax ...    Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)        System.Data.SqlClient.SqlDependency.Start(ConfigurationManager.ConnectionStrings("dataConnectionString1").ConnectionString)    End Sub...Web.config ...    <connectionStrings>        <add name="dataConnectionString1" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|jbp_data.mdf;Integrated Security=True;User Instance=True"         providerName="System.Data.SqlClient" />        <add name="ASPNETDBConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.MDF;Integrated Security=True;User Instance=True"         providerName="System.Data.SqlClient" />    </connectionStrings>... Hope you could help.  cheers,imperialx 

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Apr 5, 2007

Hi,



I am struggling with the position SSB could take in an SOA. If I would want a broker in the general sense, meaning an intermediary sitting between applications which exchange information through messaging, would SSB be a good candidate? I know Biztalk is probably the primary candidate, but in my scenario I would end up with Biztalk apps with empty orchestrations. Also, I think Biztalk is more expensive to manage. So I am looking for a lightweight broker for a simple SOA targeted at application interoperability, no fancy business processes in sight.



I look forward to some responses.



Kind regards,

Neeva

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Mar 30, 2007

I am trying to send a message between to SQL Server 2005 instances on two different machines. I have checked all my routes and all my objects appear to be setup correctly. However, when running Profiler on the target machine, I receive the "This message has been dropped because the TO service could not be found. Service name: "[tcp://mydomain.com/TARGET/MyService]". Message origin: "Transport". This is my activated stored procedure that is sending the message to the target service. I am using certificate security. Any help appreciated....



CREATE PROCEDURE [usp_ProcessMessage]

AS

BEGIN

SET NOCOUNT ON;

DECLARE @conversation_handle uniqueidentifier

DECLARE @message_body AS VARBINARY(MAX)

WHILE (1=1)

BEGIN

BEGIN TRANSACTION;

WAITFOR(RECEIVE TOP (1)

@conversation_handle = conversation_handle,

@message_body = message_body

FROM [tcp://mydomain.com/INITIATE/MyQueue]

), TIMEOUT 1000;

IF (@@ROWCOUNT = 0)

BEGIN

COMMIT;

BREAK;

END

END CONVERSATION @conversation_handle

IF @message_body IS NOT NULL

BEGIN



BEGIN DIALOG CONVERSATION @conversation_handle

FROM SERVICE [tcp://mydomain.com/INITIATE/MyService]

TO SERVICE '[tcp://mydomain.com/TARGET/MyService]'

ON CONTRACT [tcp://mydomain.com/INITIATE/MyMessage/v1.0]

WITH ENCRYPTION = ON, LIFETIME = 600;

SEND ON CONVERSATION @conversation_handle

MESSAGE TYPE [tcp://mydomain.com/TARGET/VisitMessage]

(@message_body);

END

COMMIT;

END

END

GO



My endpoints are created like so:



CREATE ENDPOINT MyEndpoint

STATE = STARTED

AS TCP

(

LISTENER_PORT = 4022

)

FOR SERVICE_BROKER (AUTHENTICATION = CERTIFICATE MasterCertificate)

GO



GRANT CONNECT TO CertOwner

GRANT CONNECT ON ENDPOINT::MyEndpoint TO CertOwner

GO



And my routes like so:



GRANT SEND ON SERVICE::[tcp://mydomain.com/INITIATE/MyService] TO CertOwner

GO

CREATE REMOTE SERVICE BINDING [MyCertificateBinding]

TO SERVICE '[tcp://mydomain.com/TARGET/MyService]'

WITH USER = CertOwner,

ANONYMOUS=OFF

CREATE ROUTE [tcp://mydomain.com/INITIATE/MyRoute]

WITH SERVICE_NAME = '[tcp://mydomain.com/TARGET/MyService]',

BROKER_INSTANCE = N'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx',

ADDRESS = N'TCP://xxx.xx.xx.xx:4022'

GO

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Sep 26, 2007

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I like the concept of Activation that Service Broker provides. But, from what I am reading most of the documentation describes activation as a way to call another stored proc. I definitely dont' want to do any process intensive work on the SQL server. So here comes my question...

How would I use a windows service to listen to the activation event from the Service Broker. I could have multiple windows services watching the same queue (scalable). Would I have to handle collisions myself? If so, I think I would rather keep it simple, and just use a simple table as my queue.

Thanks for your comments in advance...
Vijay.

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Apr 5, 2008

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Aug 29, 2006

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Thanks.

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Sep 8, 2006

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May 16, 2006

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ALTER AUTHORIZATION ON DATABASE::[SPYDERONTHEWEB] TO [SA];

The error i'm getting is



Service Broker needs to access the master key in the database 'SpyderOnTheWeb'. Error code 25. The master key has to exist and th service master key encryption is required.

Error: 28054, Severity 11, State: 1.

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Sep 26, 2006

Hi

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Sep 11, 2006

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ALL my front end application are made in dot net

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Jan 8, 2008

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Thanks,

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Jul 3, 2007

Hi all



if any one have any white paper or artical cover this issue kindly i need it



thanks , regards

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May 16, 2007

Hi,



I am looking at the Service Broker as a way to notify multiple clients that there has been data changed on a table in the shared database. These clients may or may not be online. When there is a change, the notification should fire off a query to refresh the clients local cache. Is this a situation where Service Broker would help me? Can multiple clients recieve the notification at different times ( some recieve while online, some recieve when they come back online)? Any help on this would be appreciated. It seems from what I read that the messages are pulled off the queue when a notification has taken place. Is this correct? If so, can I set it to behave differently?



Thanks,

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Apr 26, 2008

I have tried the following, each runs successfully with no error, but nothing is in the queues, what can be the issue?
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VALIDATION = WELL_FORMED_XML;

CREATE CONTRACT MQContract
(SentMsgType SENT BY ANY );

CREATE QUEUE SentQueue
WITH
STATUS=ON, RETENTION=OFF;


CREATE QUEUE ReceivedQueue
WITH
STATUS=ON, RETENTION=OFF;

CREATE SERVICE SentService ON QUEUE SentQueue
(MQContract);

CREATE SERVICE ReceivedService ON QUEUE ReceivedQueue
(MQContract);


SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TRIGGER [dbo].[insertTrigger]
ON [dbo].[tblBBB] FOR INSERT AS
BEGIN
SET NOCOUNT ON;
DECLARE @handle uniqueidentifier
DECLARE @msgBody nvarchar(500)

select @msgBody = someString from inserted

BEGIN DIALOG CONVERSATION @handle
FROM SERVICE SentService
TO SERVICE 'ReceivedService', 'CURRENT DATABASE'
ON CONTRACT MQContract;

--Sends a message
SEND ON CONVERSATION @handle
MESSAGE TYPE SentMsgType
('<message>' + @msgBody + '</message>')
END CONVERSATION @handle WITH CLEANUP;
END


SELECT * FROM SentQueue
SELECT * FROM ReceivedQueue;

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Oct 16, 2006



How to create service broker and whic version is supported to create serveice broker.



can you plz exlain to create servece broker from the scratch



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Mar 22, 2007

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Apr 25, 2006

Hi,

We have a customer whos database just grows and grows. Not the customers own tables, but the:

sys.sysconvgroup
sys.sysdesend
sys.sysdercv

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Now to my questions =)

HOW do I delete rows from these tables? How come these tables hust grows and grows, could it be any setting in the SQL 2005 Server or is it the customer who has programmed his application wrong?

Please respond as soon as possible.

Best regards

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Aug 23, 2006

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My initial
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in C#, to process the messages in these queues. There will be incoming
and outgoing queues, queues to store unroutable messages, etc.

My
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millions) of messages per day. These message are very small (< 200
bytes each) and must be routed very quickly. (<1 second processing overhead per message for high priority messages.)

Using the term
"routing" may be a bit misleading. The messages arrive via TCP socket
connections. I will just need to take in a message, examine its
intended destination, and send it to one of several outgoing socket
connections, likely on different machines. Some messages require higher priority routing than others,
but I don't need multi-hop routing or anything like that.

Of
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Can the Service Broker provide me with this kind of functionality? If so, how well does it perform and scale? Is it a better choice for messaging applications that require high transactional throughput than MSMQ?

I'm just trying to get an idea of what products/services I should look into further.

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Feb 27, 2007

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Jan 17, 2007

Hello people

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Many thanks in advance, Michael



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Jul 3, 2007



Hi, in the development env. I created the 2 dbs used by service brokers, the service brokers objects (messages, queues etc...).

The schema applied to tables and Activation SP is [dbo] and also the queues are executed as [dbo].



Everything works fine!Cool!



Now that we have to deploy evertything on production I would like that the service broker conversation runs using a specif user ( in this way when I log the Service Broker's errot in the event log I see this specific user and not my name)



Which kind of permission I have to give to this the user .. it is enought that I assign to it the schema DBO or I have to change the definition of my queues( execute as '[dbo]') or to create a new schema?



Thankx everybody fo any help!

Marina B.

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Mar 19, 2007

Hi,

I'm not able to get Service Broker to work. I've created the following sample and would excpect to get some data from "PreisanfrageQueue" or "PreisanfrageRequestorQueue". But both they are emtpy.

What do I do wrong?

Regards,

Manfred



create message type Preisanfrage
validation = well_formed_xml;

create message type PreisanfrageAntwort
validation = well_formed_xml;

create contract PreisanfrageContract
(
Preisanfrage sent by initiator,
PreisanfrageAntwort sent by target
);



create queue PreisanfrageRequestorQueue with
status=on;

create queue PreisanfrageQueue;



create service PreisanfrageRequestorService
on queue PreisanfrageRequestorQueue ( PreisanfrageContract );


create service PreisanfrageService
on queue PreisanfrageQueue (PreisanfrageContract );

create table debug_table;
create table debug_table (id int primary key identity(1,1), msg varchar(100));

create procedure PreisanfrageAction
as
declare @conversation uniqueidentifier
declare @msg nvarchar(max)
declare @msgType nvarchar(256)
declare @answer xml;

insert into debug_table(msg) values('1');

;receive top(1)
@conversation = conversation_handle,
@msg = message_body,
@msgType = message_type_name
from PreisanfrageQueue;

insert into debug_table(msg) values('2');

-- Preisanfrage bearbeiten


set @answer = '<preis>1</preis>';
;send on conversation @conversation
message type PreisanfrageAntwort (@answer);

end conversation @conversation;

insert into debug_table(msg) values('3');

alter queue PreisanfrageQueue
with
status=on,
activation (
status=on,
PROCEDURE_NAME = PreisanfrageAction,
max_queue_readers = 100,
EXECUTE AS OWNER
);




-- Dialog starten

declare @conversation uniqueidentifier;

begin dialog conversation @conversation
from service [PreisanfrageRequestorService]
to service 'PreisanfrageService'
on contract [PreisanfrageContract];

declare @request xml;

set @request = '<?xml version="1.0" encoding="UTF-8"?><Preisanfrage xmlns="4711101'">http://www.xyz.at/samples/Preisanfrage"><KundenId>4711</KundenId><ProduktId>10</ProduktId><Anzahl>1</Anzahl></Preisanfrage>';

;send on conversation @conversation
message type Preisanfrage ( @request );

receive * from PreisanfrageQueue;

receive * from PreisanfrageRequestorQueue;


select * from debug_table


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