DB Engine :: Linked Servers Cannot Be Used Under Impersonation Without Mapping
Nov 11, 2015
I have a user who is trying to run a job (call an Stored Procedure) which connects to a Linked Server. He can run it OK using EXEC SP_Name but when he runs from the SQL Jobs it gives him the error: Linked servers cannot be used under impersonation without a mapping for the impersonated login.[SQLSTATE 42000] (Error 7437). The step failed.The Linked Server was setup using another account. Would this be fixed if I add the new user to the Security section of Linked Server without breaking the current configuration?
I use linked serve with (Security :be made with specific security conterxt) to connect to my production server from a Data Archive server.
Stored Procedures loop throught the prodcution data to insert records into Archive tables...Howerver after few hundreds of iteration I get the following error...
"Access to the remote server is denied because no login-mapping exists."
I am confused with the error message as it happens only after some successful insertions....
Hi Folks SQL2k on NT4 Domain I have a UserDB on SvrA - Access to UserDB is Via a DomainGroup and is assigned db_owner role UserDB Executes a local SP which in turn Executes a remote SP on SvrB via a Linked Server The Linked Server Login Security is via mapping to a remote account which has db_owner on the remote DB. I would like to. a) stop ALL users on SvrA from being able to use this linked serverb) tightly restrict permissions of the remote account to the remote db Is it possible to MAP above local server login to remote server login as the local login is via a domain group. I cannot significantly alter UserDB current Login Security I'm also worried that another system/db is utilizing this Link (legally) but I'm not allowed on the production box to monitor it (Hhrummphh - but unfortunately I have the job of providing scripts to tighten security :rolleyes: - hence the prefference for mapping local to remote users I'm sorry I'm not well versed in SQL Security & this is only a central part of my bigger security job(involving horrible RPC's, dynamic SQL, heteregeounous joins, double hops, delegation etc) Any help appreciated GW
Last night we had a problem caused by a stored proc being deployed to only one server rather than two. I want a way to ensure that we can automatically run on a schedule a check to ensure that the 2 procs on 2 servers are the same.
I need a less robust solution that I implement tomorrow that doesn't involve buying third party tools and a more robust long term strategy that could if need make use of third party tools.
I have 4 servers, 2 each for application (Dev & Prod)
DEV 1 & DEV 2 are standalone servers
Prod 1 & Prod 2 are Windows Clustered Servers.
From one application to other we do Distributed transactions. Dev 1 - Dev 2 or Dev 2 - Dev 1 can start DTC and working fine,but issue comes when Prod 1 - Prod 2 or Prod 2 - Prod 1. I get error message OLE DB provider "SQLNCLI" for linked server "xyz" returned message "No transaction is active.".
Msg 7391, Level 16, State 2, Line 3
The operation could not be performed because OLE DB provider "SQLNCLI" for linked server "xyz" was unable to begin a distributed transaction.
I have tested Dev 1 - Prod 1, Dev 1 - Prod 2, Dev 2 - Prod 1, Dev 2 - Prod 2 everything is working fine only Production servers are causing issue.
I enabled all settings needed for DTC on Cluster MSDTC service but no luck.
can anybody tell me about Linked Servers and their uses and how to add a linked server to my Sql Server 2005. any help on this would be highly appreciated.
I have been trying to Link two sql servers on two different machines over the Internet without any luck. Can someone point me to information about doing this with good examples?
I currently have a main SQL Server which had a column on the majority of the tables. This column also had a check contraint on it. I dropped the column and the constraint and I now get the following message when trying to query the tables through a linked server 'OLE DB provider 'SQLOLEDB' supplied inconsistent metadata. An extra column was supplied during execution that was not found at compile time.'.
Hi All, I have successfully linked a server and had SQL queries running OK for a few weeks, but today I get the following message....
"OLE DB provider 'SQLOLEDB' supplied inconsistent metadata. An extra column was supplied during execution that was not found at compile time." (Server: Msg 7353, Level 16, State 1, Line 1)
I've dropped the link and recreated it but I still get the same error message. Can anyone help???
I have a DTS package that requires me to link 2 servers and query both in order to get my set of records that I want to Transform. My query runs fine in QA. I copy and paste it into the SQL Query window of the transformation. I click Preview and all that happens is a quick flicker of the DTS window. When I go to Transformations, there are no source columns.
Here is a copy of my code that I'm trying to use: ------------------------------------------------------- declare@start_dteas datetime, @end_dteas datetime
SELECTT70.* FROM CRMDEV02.MDCORE.DBO.T70_MD_UNIVERSE_RELATIONSHIP_M A NGT AS T70 JOIN #RUNS ONT70.RUN_ID = #RUNS.RUN_ID
DROP TABLE #RUNS ------------------------------------------------------ Is there an issue with Linked Servers and DTS? Any help would be greatly appreciated.
Hi Gurus, I am looking for literature to find out Pros and Cons of Using DTS Verses Linked Servers in SQL 7.0.
My requirement can be done by either DTS or Linked servers. But I would like to know more about resorce utilisation of these tecniques before making a decission.
When I create linked server using integrated security and <they will be impersonated> option I get this: Server: Msg 18456, Level 14, State 1, Line 1 Login failed for user '' MS Technet says that SQL Server 7 doesn't allow double hops and to use mappings to standard security login to work around. @#%%~~@@#@#&^%@# Impersonating to version 6.5 works fine. Is there any way to link servers using ONLY integrated security? Any help would be much appreciated. Thanks
I have setup a linked Informix server in SQL7.0 and I am trying to create a simple View with the following SQL statement
SELECT doc_code FROM FOURSITE.foursite.informix.watdoc WHERE (order_no = [PV01963B ])
I am getting the following error:
--------------------------- SQL Server Enterprise Manager --------------------------- [Microsoft][ODBC SQL Server Driver][SQL Server]Invalid use of schema and/or catalog for OLE DB provider 'MSDASQL'. A four-part name was supplied, but the provider does not expose the necessary interfaces to use a catalog and/or schema. --------------------------- OK Help ---------------------------
Hi. I'm working with SQL Server 7.0 and I've been reading about the linked server option. My question is, if it's possible to link a server with a SQLBase database 7.01.
I have download some drivers to my computer, the odbc driver for sqlbase and the sqlbase ole db driver as well, but when I try to add a new linked server in the enterprise, in the provider name option I can not see any provider name addressing to Centura or Sql base driver.
Has anybody an idea how to make this connection then? or the right way for doing it??
Thanks for any help can be offered. Regards, Elvia. :)
I have two 7.0 servers and I want to run a distributed query.
I did sp_addlinkedserver to link server B to server A and I did sp_addlinkedsrvlogin for a specific login. After adding login when I try to access a table on server B it says login failed
All the logins are NT authenticated (in both the servers, So both servers have same logins.)
Hi all I try to configure Linked Servers from the query analyze , and have some troubles. My steps are : 1. from the enterprise mennenger , add 2 new servers : srv1 , srv2 (both SQL7) 2. from the query analyzer of srv1.master: "sp_addlinkedserver 'srv2'" 3. from the query analyzer of srv1.master: "sp_addlinkedsrvlogin 'srv2',false,null,'sa','myPass'" 4. select * from srv2.pubs.srv2Table 5. I get the next error :"error 6 : Specified SQL srever not found."
This is my problem I have a Server A and Server B. There is a master table in Table A. I link Server A and Server B. When I look in Under Linked Server tables of B I can only C tables in Server A not the Server B 's Tables. Dpn't know what is happening. Could SOmebody help
I have two servers and they are linked servers. When I query a table on ON Box2 from Box1 The distributed query works fine but when I tried the oppisite it says 'SQL Server does not exist or access denied.' What could be the reason.
Recently, I had Microsoft review why our SQL Db was unexpectedly terminating. They pointed to our Oracle Linked servers. They recommended that we try to uncheck the enable allow in process option on the ODBC driver. We are currently using the Microsoft OLE Db provider for our Oracle connnections as we were unable to get the Oracle ones to work with a linked server. When we unchecked this allow in process option near the end of the day our website began getting out memory errors from ODBC. It appeared to have been because of this change. Does anyone have any insight as to why changing this option could have caused this?
Is there any limit to the number of linked servers i can add via EM?. where can i find more info on adding/configuring linked servers in MSSQL2k and the limitations/drawbacks if any?
We have a new 2005 server, and I am trying to link our old 2000 server so I can use the old databases in new server.
This is what I done: In 2005: EXEC sp_addlinkedserver oldServer --completed fine then: EXEC sp_addlinkedsrvlogin oldServer, 'false', NULL, 'Administrator', password --completed fine But whenI run the query I get the error:
OLE DB provider "SQLNCLI" for linked server "oldServer" 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 'Administrator'.
