Linked Server From SQL 2000 To 2005 Through A Firewall
Oct 16, 2007
Can anyone tell me if there's a recommended way to link from a SQL 2000 SP4 DB through a firewall to SQL 2005? I have tried with SQLOLEDB but this uses NETBios which is not secure. Or is there a way to tell it not to use NETBios?
SET @provdetail = 'DRIVER={SQL SERVER};SERVER=<IP address>;Trusted_connection=Yes'
EXEC Master..sp_addlinkedserver
@server = ,'<IP address>',
@srvproduct = '',
@provider = 'SQLOLEDB',
@provstr = @provdetail ,
@catalog = 'TestDB',
@datasrc ='<IP address>DB1'
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May 7, 2007
I have database in 2000 which needs to be access from SQL 2005 via linked server ? and vice - versa ?
How do we do that ?
we run select statement we get following error message.
Error 4064 : cannot open user defulat database : login failed.
We are using SQL 2000/sp4
SQL 2005/sp2
Please advice.
Thank you
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Jan 15, 2007
I'm having issue in connecting to sql 2005 from sql 2000 via linked server.
Please advice what I should do to overcome the problem.
Thanks.
-EC
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Aug 25, 2006
Hello,
My question is about allowing and securing connections to SQL Server 2000 over the internet. The company that I work for has an application server that several of our clients connect to via the internet using secure .NET remoting. Basically, the clients have a desktop application that they run that creates a remoting connection to our server software and we handle the server/database part. Anyway, one of our clients now wants to use Crystal Reports to run ad hoc queries on their data that is hosted on our SQL 2000 database server behind our firewall. Obviously, opening up a port in our firewall and allowing someone to run ad hoc queries on the database makes us all more than a little nervous about security.
Has anyone else here had to deal with this sort of situation before? We'd like to set up a secure, encrypted connection for this one client, but still keep it locked down for everyone else. Is it as simple as enabling encryption and generating SSL certificates for the client machine and our server? I've only been able to find a few resources that help with bits and pieces of the problem, never anything tackling the issue as a whole. If anyone has any thoughts, experiences, links, etc. to share it would be greatly appreciated. We are a small company and no one here has experience with this sort of thing.
Cheers!
Justin
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Mar 7, 2008
Hi Guys,
I am trying to Query text file into SQL Server 2005 using linked server.
In SQL Server 2000 here is what I have.
Linked server configured to use following parameters
Product Name : Customer_file
Provider Name: Customer_File ( System DSN)
Here is basic file
0000003700 0000XXXXXX XX14 61J 1154-06-249
0000008600 0000XXXX11 YY17 41F 1144-12-309
0000010700 00023232323233 XX48 9DY 1145-10-299
0000015700 00001212121212 OX1 5RW 1163-08-079
0000026600 00001233333 YY1 31S 1150-12-111
0000027600 00001212121 YY15 8HU 1176-04-0891
0000038700 0000H13344 B120 8RF 1157-05-211
Now when I EXECUTE following command.
select * from openquery (TEST, 'select f1,f2,f3,f4,f5 from t#txt');
I normally get formatted output in columns..
As soon as I setup the same Linked server in SQL Server 2005, and follow same process I get all data in one column with first line as header.
I am basically concerting old import process into new one..so trying to figure out what i am missing?
Anay help?
THanks
SKR
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Aug 31, 2007
Hello,
I have been searching the archives for information on problems that occur with creating a linked server to SQL Server 2000 from SQL Server 2005 x64, but the problem I am having seems to be slightly different.
I was able to create the linked server from the 2005 server this way;
Exec sp_addlinkedserver
@Server = '2kServer',
@srvproduct = 'SQL Server'
I was able to add the login this way;
Exec sp_addlinkedsrvlogin
@rmtsrvname = '2kServer',
@useself='False',
@locallogin='domaincdun2',
@rmtuser='domaincdun2',
@rmtpassword='pswd'
I receive 'Command(s) completed successfully' for both. When I attempt to run either of the following queries from a connection to the 2005 server in Management Studio;
select top 100 * from 2kServer.database.dbo.table
select * from Openquery(2kServer,'select top 10 * from database.dbo.table')
I get the following error
OLE DB provider "SQLNCLI" for linked server "2kServer" returned message "Communication link failure".
Msg 10054, Level 16, State 1, Line 0
TCP Provider: An existing connection was forcibly closed by the remote host.
Msg 18456, Level 14, State 1, Line 0
Login failed for user 'domaincdun2'.
I've seen a couple of ideas on this. One states the following;
***************************************
When running 4 part reference query like this:
select * from sql2000.mybase.dbo.mytable
SQL Server 2005 x64 runs the following query on remote SQL2000 server:
exec [mybase]..sp_tables_info_rowset_64 N'mytable', N'dbo', NULL
Unfortunately there is no such a proc on SQL2k. However, sp_tables_info_rowset exists and does the same thing. The solution is to create wrapper on master database like this:
create procedure sp_tables_info_rowset_64
@table_name sysname,
@table_schema sysname = null,
@table_type nvarchar(255) = null
as
declare @Result int set @Result = 0
exec @Result = sp_tables_info_rowset @table_name, @table_schema, @table_type
And then everything works fine. If you don't want to create "Microsoft like" objects on master database, use openquery instead of 4 part reference.
**************************************
I put this proc on the 2kServer and tried again, but I got the same error. I've also seen this:
I went into the Sql Server Configuration Manager, Sql Native Client
Configuration -> Protocols and disabled Shared Memory and made the TCP/IP
protocol #1 in order. Then just restarted the Sql Service and it all started
working!
I don't have access to the server to do this, but I wonder if it would solve the problem. I am a sys admin on both servers. The servers are in two different domains. Could this be a firewall issue?
Thank you for your help!
cdun2
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Dec 29, 2006
Interesting issue.. I think
I have 2 linked servers on my dev 2005 instance (sp1-win 2003). My 2005 instance shares the physical server with a 2000 instance. This linked server works fine. The second linked server is on a separate server running sql 2000 sp3. I cannot connect to this server at all. I can connect the other way -- from the 2000 to the 2005. I have tried all kinds of combinations of security and options but nothing works. The only resolutions I have found referenced installing Management Studio on the 2000 server or creating an ODBC connection from the 2005 instance. Any ideas???
Here is the error I get:
OLE DB provider "SQLNCLI" for linked server "ALLFLDB6" returned message "Login timeout expired".
OLE DB provider "SQLNCLI" for linked server "ALLFLDB6" returned message "An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections.".
Msg 10061, Level 16, State 1, Line 0
TCP Provider: No connection could be made because the target machine actively refused it.
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Feb 9, 2007
I'm trying to connect to another slq server db through a linked server (and synonyms) but I get the following error.
Exception has been thrown by the target of an invocation. ---> System.Data.SqlClient.SqlException: The current transaction cannot be committed and cannot support operations that write to the log file. Roll back the transaction. ,Unable to start a nested transaction for OLE DB provider "SQLNCLI" for linked server "BURT". A nested transaction was required because the XACT_ABORT option was set to OFF. , at Westfalia.TDMN.TxObjects.TxBurtOCIInterface.BurtOCIPalletChangedRecords_Get() , --- End of inner exception stack
I've set up MSDTC and executed the procedures noted in MS's article ID 873160. I am using 2005, but the Burt server is 2000. I can run the stored procedure from my server, which queries theirs. But when I execute the sp from a service, I get the error. Any help would be greatly appreciated.
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Mar 14, 2007
I plan to migrate a SQL 2000 instance with everything in it to another SQL2000 server, and eventually in the future to SQL 2005.
I've pretty much figured out how to migrate everything execept the linked server configuration (there're many linked servers configured in the old server with different security credentials). I'm wondering if there's way I can save the linked server configuration and restore it to the other server.
Thanks much.
Ed
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May 8, 2006
I have been unable to get my linked server to work when running queries against it in SQL Server 2005.
Example SQL Statement on my SQL 2005 server that I'm trying to run:
select top 100 * from [linkedservername].databsename.dbo.tablename
Error Message:
Msg 7416, Level 16, State 1, Line 1
Access to the remote server is denied because no login-mapping exists.
Print screen of the security properties of my SQL 2005 Linked Server:
http://www.webfound.net/linkedserver.jpg
The user sqladmin definitely has the right permissions to the right databases on the target linked server.
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Aug 30, 2006
I'm trying to link SQL Server 2000 sp3 to SQL 2005 64 bit. I keep getting Error 17 sql server does not exist or access denined. I tried adding remote user mapping and chaning the linked server properties to "Be made using this security context" without any success.
Any help is appreciated.
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Jan 16, 2008
Hello
SQL 2000: 8.00.2187 x86, 8 way 700mhz, 6GB Ram
SQL 2005: 9.00.3042 IA64 2 Way Dual-Core 1.66Mhz 16 GB ram
Symptoms
Querys to the SQL 2005 box from SQL 2000 work but when the query is parameterised with non-literals (@variables) then the query run on the SQL 2005 box excludes any where clause causing the entire table to be returned to the SQL 200 box. When the query is parameterised using literal values the query is executed on SQL 2005 including the where clause.
At first I thought that the "Collation Compatible" setting was the culprit but setting this to 1 made no difference. Other SQL 2000 boxes work as expected and any queries from these using literal and non-literal parameters.
Please, any ideas?
Working
SELECT A.Column FROM linkedServer.IA.dbo.Table Where A.Column = 'value'
Not Working (correctly anyway!)
DECALRE @Value tinyint
SET @Value = 22
SELECT A.Column FROM linkedServer.IA.dbo.Table Where A.Column = @value
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May 4, 2007
Hi
I have created a linked server from SQL Server 2005 (SP 1) to SQL Service 2000 (SP 4) with a sql server login that is available on both servers but with different passwords and permissions.
I am getting the following error while accessing the linked server in management studio based on the scenario given below ;
------ Error Message Starts
OLE DB provider "SQLNCLI" for linked server "(SQL Server 2000 instance name)" returned message "Communication link failure".
Msg 10054, Level 16, State 1, Line 0
TCP Provider: An existing connection was forcibly closed by the remote host.
Msg 18456, Level 14, State 1, Line 0
Login failed for user 'abc'.
------ Error Message Ends
Consider login name is abc.
Now this login abc has sysadmin rights on sql server 2005.
The same login abc has only db_datareader rights on sql server 2000 on just one database and is not associated with any fixed server role.
I have configured the linked server using the following options;
1. I have tried impersonating login from SQL Server 2005 to SQL Server 2000 .
2. I have also tried specifying remote login / password option.
Anyone having any idea, would be of great help.
Regards,
Salman Shehbaz.
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Apr 18, 2007
Can I connect from a SQL Server 2005 database to a SQL Server 2000 database, without establishing a linked server connection.
I need to fire a SELECT query on a SQL Server 2000 database, but don't want to add it as a linked server. Is there any way I can do this or its not possible??
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Aug 24, 2006
I am trying to write some admin only procedures which will collect information to one of my development server from other production and development servers.
I have created linked servers to access these other servers on the development server. This development server is SQL Server 2000 EE. Other servers which I want to access are 2000 and 2005 (vaious editions)
E.g I have another development server called PRODTEST which is SQL Server 2005 and on the development server I have created a linked server pointing to PRODTEST called TESTLINKSRV. I want to access new object catalog view (as I do not want to use sysobjects)
When I run the following query
SELECT * FROM [TESTLINKSRV].[DBNAME].[sys].[objects]
I get following error,
OLE DB error trace [Non-interface error: OLE DB provider does not contain the table: ProviderName=' TESTLINKSRV ', TableName='" DBNAME "."sys"."objects"'].
Msg 7314, Level 16, State 1, Line 1
OLE DB provider ' TESTLINKSRV ' does not contain table '"DBNAME"."sys"."objects"'. The table either does not exist or the current user does not have permissions on that table.
So I try this query
SELECT * FROM [TESTLINKSRV].[DBNAME].[sys.objects]
and I get following error
Msg 208, Level 16, State 1, Line 1
Invalid object name TESTLINKSRV.DBNAME.sys.objects'.
So bottom line is how do I access catalog views on a 2005 server from a 2000 server using linked server?
I hope someone understands what I am trying to achieve. Please let me know what is it that I am doing wrong.
Thank you
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Mar 6, 2006
Hi,
I'm experiencing problems connecting remotely (through the Management Studio) to a named instance of SQL Server Express 2005.
After investigation I determined it was a firewall issue - turn off windows firewall and I can connect fine. I initially added ports 1433 and 1434 to windows firewall - still no joy. Then I added the binaries explicitly (sqlservr.exe and sqlbrowsr.exe - or whatever they are) - still no joy. So, I looked into the firewall log to see what was being dropped. I found that my IP was trying to connect via port 1047 (TCP)... I've searched for anything about this on google and cannot find any indication that the management studio should be using this port to connect.
If I add this port, the connection works fine. Has anyone else experienced this ? As there seems to be no way of modifying the management studio to connect via a specific port, I'm a bit concerned that something is just not right.
I would appreciate any advice you can give.
Thanks.
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Nov 1, 2006
Hello,I am trying to connect with sql by using following connection string"server='serverIP'; user id='username'; password='xxxxxxx'; database='databasename';"If SQL Server 2000 server that is behind a firewall , I need to change it.Can anyone let me know what should I change in my Connection String.I am using Asp.net 1.x Thanks in Advance
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Jul 26, 2005
I can't define a linked server in SQL Server 2005 x64 edition (to a SQLServer 2000 instance).
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Jun 2, 2007
Dear all
I have created linked server object between a sql 2000 and sql 2005 database. i have the latest mdacs installed and all the services enabled on both sides.
But when i try and run a sql statement on the sql 2000 side i get this error:
[DBNETLIB][ConnectionOpen (PreLoginHandshake()).]General network error. Check your network documentation.
If i try and run a swl statment on the sql server 2005 side the procedure works.
Has anyone experienced the same problem?Any advice?
Thank you so much for the help.
Dan
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Jul 25, 2006
We have two sql servers using Windows authentication. One is sql 2000 the other sql 2005. When logged in as "sa", I can link these servers and run a SELECT distributed query without any problem.
But when one of our developers runs the same query (he is "dbo" of each database on each of the servers) he gets the error:
"OLE DB Provider "SQLNCLI" for linked server <Servername> returned message "Communication Link Failure"
...
Login failed for user '(null'). reason: Not associated with a trusted SQL Server connection"
Despite that, I, as "sa" equivalent, have no problem so it appears to be a permisisons issue. Any ideas what is going on here?
TIA,
Barkingdog
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Jun 3, 2007
Dear all
I have created linked server object between a sql 2000 and sql 2005 database. i have the latest mdacs installed and all the services enabled on both sides.
But when i try and run a sql statement on the sql 2000 side i get this error:
[DBNETLIB][ConnectionOpen (PreLoginHandshake()).]General network error. Check your network documentation.
If i try and run a sql statment on the sql server 2005 side the procedure works.
Has anyone experienced the same problem?Any advice?
Thank you so much for the help.
Dan
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Jul 20, 2005
We are experiencing a problem with Sql Server 2000 linking to anAccess 97 file. We have two machines that link to this .mdb file, andwe recently upgraded one to newer hardware, SP3a, MDAC 2.8, etc. Thelink on this upgraded machine no longer works, giving this message:Server: Msg 7399, Level 16, State 1, Line 1OLE DB provider 'Microsoft.Jet.OLEDB.4.0' reported an error.[OLE/DB provider returned message: Cannot open a database created witha previous version of your application.]OLE DB error trace [OLE/DB Provider 'Microsoft.Jet.OLEDB.4.0'IDBInitialize::Initialize returned 0x80004005: ].The link on the older machine still works. We decided to tryconverting a copy of the file to Access 2000 to see if the newerpatches/drivers/whatever no longer supported 97. We set up a link onboth machines to this file, and they both work. However, on theupgraded machine, the following error is receievedServer: Msg 7399, Level 16, State 1, Line 1OLE DB provider 'Microsoft.Jet.OLEDB.4.0' reported an error.[OLE/DB provider returned message: System resource exceeded.]OLE DB error trace [OLE/DB Provider 'Microsoft.Jet.OLEDB.4.0'ICommandText::Execute returned 0x80004005: ].when making 1-3 connections to the the linked server, while the oldermachine supports at least 7 simultaneous queries connecting to thelinked server and still hasn't produced that error.Does anyone have any idea if there is a known issue with linking toAccess 97/2000 files under MDAC 2.8, Jet 4.0, etc? Any light anyonecan shine on this subject would be greatly appreciated.
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Dec 26, 2006
What ports do i need to open on my Cisco Firewall in order to allow someone outside my firewall access to SQL? They want to connect using MGT Studio.
Thanks
Bosco
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Jan 27, 2008
We have an internal sql 2000 server that acts as the database backend for our
Internet presence. I believe that the sql server can be accessed because of a
firewall "exception" (?) that allows the external web server to talk to the
sql server using a specific IP address and port (namely that of the sql server.)
Now we need to install a sql 2005 instance on the same box which needs to act
as an Internet backend. The sql browser service will resolve all client
requests to the default or named instance. But I read that the sql browser service
assigns a "dynamic" port to the Instance! If that is the case, it's unlikely that,
unless the firewall has all ports open for outgoing traffic, that the sql instance will be
able to communicate with the web server.
My conclusion:
Leave the default instance (sql 2000) port at its current value;
assign the named instance an unused port;
Make sure the sql browser is running on the box!
Tell the firewall guys to make an exception for the new port.
Does this seems reasonable to you?
TIA,
barkingdog
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Jan 4, 2007
Leon writes "I am trying to connect to a W2K3 Server's 2005 Reporting Server through my laptop's (WXP Pro SP2) SQL Server Management Studio.
I turned Port 1433 on in the server's Windows Firewall and was able to connect to the server's database engine from my laptop, but I have to turn Windows Firewall on the server off completely to be able to connect to the Reporting Server.
I have tried all the ports listed for SQL Server in the Microsoft documentation (TCP and UDP), but they seem to have no effect.
Can anyone tell me which port or ports I need to turn on in the server's firewall so that I can access Reporting Services through my laptop's SSMS?
Thanks in advance.
LGR"
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Jan 4, 2004
Hi,
I am trying to setup up a linked server using 'sp_addlinkedserver'. The host server is a SQL 2000 and the remote server is SQL 6.5. Both the servers are on the same domain.
When the system stored procedure is run, enterprise manager shows the name of the linked server but there are no tables.
I get error 'SQL Server does not exist or access denied' when trying to run query against a database on the remote server.
Does SQL server 6.5 support linked servers?
Please help,
DPKA
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Aug 18, 2006
Hi
We would like to install Sql 2005 Enterprise Edition (including database engine, reporting service, integration service and analysis service) as a sepearte instance on a server which already has Sql 2000 with reporting services and analysis services. We do not want to disturb the existing sql 2000 setup.
If we do that then what will happen to my earlier sql 2000 reporting service? Will it be upgraded to sql 2005 reporting service? I heard that reporting services are instance unaware application. Where will be the default reporting service database available?
Please help us.
Regards,
Sankar N
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Jan 23, 2001
I'm working with SQL Server 2000 installed in Windows 2000. When i tried to add the 'servername' as a linked server , i got the following message:
" Error: 15038. The Server 'servername' already exists."
When i execute "sp_linkedservers" , i could see the name "servername" in the list. But before doing this i had Restored the "MSDB" database on this server. Should i use "sp_droplinkedservers" and add them again.
Any comments are most welcome.
Thanks, Santha.
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Jul 23, 2005
Hi -We have two SQL 2000 Servers. We have the linked server setup and wecan perform updates and inserts between the databases. But when we adda trigger and insert something into a table, the database hangs. Thereare NO processes blocking or being block in either database. This ONLYoccurs when we have one OS as Windows 2000 Server and the other OS asWindows 2003 Server. This problem does not occur when both servers areWindows 2000. Has anyone ran into anything similar to this???*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
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Feb 27, 2007
I€™m trying to resolve an issue and wonder if anybody has ever run into and possibly had a resolution for.
I wrote a custom conflict resolvers to manage data at the column level. What I needed to do to achieve this was to use a remote query to the mobile subscriber that raised the conflict. I€™m trying to put in a rule that if there are any issues connecting to the subscriber I want to use the default conflict resolver and move forward. Here is my issue, it seems there is no way I can test a connection without getting a critical error that I can€™t seem to trap. Example
I was trying to do
Select * from [linkedserver].[database].[dbo].[incident]
If @@error <> 0
use default conflict resolver
What I did to test this was I changed the linked server authentication to an incorrect password to get the following error that there is no way to trap.
Server: Msg 18456, Level 14, State 1, Line 1
Login failed for user 'sa'.
Does anybody have an idea how to trap this? In SQL 2005 there is a stored procedure
sp_testlinkedserver to handle this but I need this to work in SQL 2000 also, it seems many people have ran into this issue on the web and I tried to get the one where sqldmo is used to test connection but that will not work since I wont always know the password. I would like to just check the @@error value after trying to run a remote query.
Thank you,
Pauly C
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Feb 18, 2008
I'm trying to create a linked server to generalize the query for pointing to different versions/instances of the same schema. For instance, we are testing against a test db named Name_Config, but we also need to execute the same tests against Name_ConfigQA. By building the linked server (named "LS_Test"), we are attempting to leave the sql as is in another catalog on the same server by pointing through LS_Test so the following sql won't need modifying, just the linked server properties:
select * from LS_Test...table1
This produces the following error:
OLE DB error trace [Non-interface error: OLE DB provider does not contain the table: ProviderName='LS_Test', TableName='table1'].
Msg 7314, Level 16, State 1, Line 1
OLE DB provider 'LS_Test' does not contain table 'table1'. The table either does not exist or the current user does not have permissions on that table.
I've been able to do this through synonyms in SQL Server 2005, but I'm having no luck setting the propertes in 2000 such that the linked server maintains the catalog name. Any help would be greatly appreciated.
Ed
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Mar 13, 2007
I am using two almost idential laptops, one with XP and one with Vista, the only differences is that the XP laptop has 1G of RAM and running Office XP and the Vista has 2G RAM and is running Office 2007.
I have a MS Access database that has linked tables to a SQL Server 2000 database. The performance of the Access database on Vista is 5-10 times slower on the Vista machine. Just flipping through records or opening forms can take 5 - 15 seconds on the Vista machine while the XP machine takes 1 sec or less.
What gives? I looked at the CPU performance and the network performance while the Access database was busy flipping through records, the network traffic was < 2% and the CPU would spike to 40% on one of the CPUs (dual core) but would remain under 5% most of the time.
I also previously had Office XP installed on the Vista machine and it had the same performance issue so bought and install Office 2007 on the Vista machine and it did not solve the problem.
It seems that Vista is doing something that is slowing down Access with linked tables. Is this a issue between Vista and using an ODBC connection to SQL Server?
Thanks in advance for any help on this
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Jul 20, 2005
My ISP recently had me reset my TCP/IP stack. After that, Norton PersonalFirewall prompted me twice that SQL Server was trying to access theInternet. Both times I responded to allow it to and to always use thataction. Now I am not able to use SQL Server with NPF enabled. If I disableNPF, SQL Server works fine.I am using the desktop edition of SQL Server 7, on a standalone PC, notconnected to a server. I have been using SQL Server and NPF together forover a year. Now, since my TCP/IP stack was reset, NPF interferes with SQLServer.Anyone have any experience with this?Thanks,Neil
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