Anonymous Logins By SC_MSSQL Application
Apr 9, 2008
We're getting a barrage of Windows Authenticated login attempts that are using the Anonymous login on one of our client's production servers. This smells to me of a service gone awry.
The login attempts originate from a server that is hosting some Quest Software applications, specifically their Performance Analysis tool. This machine has been well behaved until this morning, but it has been issuing around ten failed login attempts an hour.
The problem that it causing me pain at the moment is that the client has not renewed their Quest support yet because of a merger, so their contract recently expired. Does anyone have any insight into what might cause a normally well behaved app/server to go mildly berzerk exactly ten days after the support contract expires?
-PatP
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Jan 21, 2007
ok, first, I know... I forgot to run a backup of the master database, and I forgot to run a script to caputure logins. Not that that is out of the way... I need to recreate the logins under the Securities tab below the databases. All the company databases have the user names and passwords assigned to them, but they are not able to login, because they are not able to authenticate to the SQL server first.
Is there a script that someone has that will copy the company database security info for the users and recreate them in the SQL security tab?
I know that I can rebuild them manually, but I need to delete them first in the application software, then delete them from the databases, and then recreate them in the application software... and as simple as that sounds... it is a slow moving process.
Any assistance would be greatly appreciated.
Thanks,
John
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Mar 5, 2006
Hello,
I am new user of SQL Server. I have some problems with these words. I want to make my database works in my specified permissions. I will specify permissions with schemas and these schema wants an owner. I want this owner should be my user. When creating a user it needs a valid login. I am selecting my login and it occurs and error says this login has an different user. I am specifying permissions with roles. But i can't make association all of them. I hope i told my problem to you as well. If you explain these words to me and tell me how can i do my database's works with my own schemas, users and roles i'll be grateful. Thanks for advices.
Happy coding...
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Jul 17, 2001
Hello,
I would move a Database to another server. I try to use DTS but I have problems with this process because DB have big tables, I think. I try to use DETACH and ATTACH procedures but logins doesn't export. And more, in new server there are already logins from another DBs.
What's the best way to solve this problem?
Please, help
Thanks
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Apr 3, 2007
I am a systems analyst and work with an app that runs against 2 SQL Server DBs. Though I have some familiarity with SQL Server and SQL, I am not a DBA.
The app executable is tied to a Windows service.
When we install the app, we run a process that builds 2 dbs to include:
Tables, indexes, stored procedures, views and user accounts.
SQL Server is set up for mixed mode authentication.
Normally, the dbs run off the local db user accounts which are tied to local logins with the same names.
We have a client that wants to remove our standard logins so that they can run on only a Windows login.
I know I should be able to tie the db users to a Windows login.
And I can do the same for the service.
But I am at a loss as to how to get this done.
How do you associate db users with a Windows login?
When I have tried sp_change_users_login I get an error that the Windows login does not exist. (Though I have added the Windows account to the DB.)
Hope this all makes sense.
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Jun 16, 2004
I was reading though my logs and noticed I had three instances of an anonymous logon last night. The last anonymous logon was at approx midnight. This is prime hacking time.
Can anyone give me direction on issues or concerns with anonymous logons.
Much thanks in advance ....
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Feb 27, 2007
Hi all
I've got the following situation:
setup up an merge publication (distributor and publisher at the same server)
setup an anonymous subscription
deleted the subscription
In the replication monitor, I still see the deleted subscription.
Why?
And how do I get rid of it?
Thanks a lot for any informations and greetz
Aline
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Feb 15, 2001
How do you set up a SQL server to allow anonymous access from a website? I am using asp for a web site and keep getting this error:
Error Type:
Microsoft OLE DB Provider for ODBC Drivers (0x80040E4D)
[Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user 'NT AUTHORITYANONYMOUS LOGON'
I am new to SQL server so any help no matter how obvious would be appreciated
Thanks
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Oct 24, 2006
Hi
I have a web sync merge publication with multiple anonymous subscribers. Unfortunately two of the subscribers have experienced errors as follows.
###############################################
The Merge Agent failed after detecting that retention-based metadata cleanup has deleted metadata at the Subscriber for changes not yet sent to the Publisher. You must reinitialize the subscription (without upload). (Source: MSSQL_REPL, Error number: MSSQL_REPL-2147199401)
###############################################
Now they successfully sync'd within the retention period so I am baffled as to why the cleanup has occured. Unfortunately I can't seem to find a way to reinitialize just a single subscriber. It seems that the only reinitialize option is across all subscribers, which I do not wish to do as they would loose any changes since last sync.
Can anyone shed any light on this.
Cheers
Rab
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Sep 15, 2006
Hi all,
The problem is: when you're trying to call in method MyMethod anonymous method that doesn't use local variables, deployment of the assembly will fail referring that MyMethod tries to store smth. in the static variable. Indeed, looking at the compiled CLR code, you can see that anonymous delegate is cached in the private static delegate and the call looks like:
If(ClassName.privateStaticDelegate == null)
ClassName.privateStaticDelegate = new MyDelegate(HiddenMethodName);
CallAnonymousMethod(ClassName.privateStaticDelegate);
Is there any workaround to fix this problem.
P.S. I googled about this problem and found only one article on it:
http://www.ayende.com/Blog/default,date,2005-12-26.aspx
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Mar 23, 2007
Hello,
I tried to use REPLMERG utility for Web synchronization and got the following error message in log file:
2007-03-23 14:35:10.484 The subscription to publication 'X' could not be verified. Ensure that all Merge Agent command line parameters are specified correctly and that the subscription is correctly configured. If the Publisher no longer has information about this subscription, drop and recreate the subscription.
The case description is as the following:
REPLMERG utility command line:
"C:Program FilesMicrosoft SQL Server90COMREPLMERG.EXE" -ExchangeType 3 -Publication X -
Publisher B01 -Subscriber 127.0.0.1SQLEXPRESS -Distributor B01 -PublisherDB DBS -
SubscriberDB DBS -PublisherSecurityMode 1 -Output C:TempDBS.log -OutputVerboseLevel 2 -
SubscriberSecurityMode 0 -SubscriberLogin Operator -SubscriberPassword XXX -
SubscriptionType 2 -DistributorSecurityMode 1 -Validate 3 -InternetURL
https://www.company.com/Synch/replisapi.dll -InternetSecurityMode 0 -InternetLogin USER1 -
InternetPassword PWD1 -SubscriberType 0
The subscription to the publication X has been created with the following T-SQL script:
USE DBS
EXEC sp_addmergepullsubscription
@publisher = N'B01',
@publication = N'X',
@publisher_db = N'DBS',
@subscriber_type = N'anonymous',
@sync_type = N'automatic',
@subscription_priority = 0.0;
I've also tried to check subscription information on the server 127.0.0.1SQLEXPRESS using the following:
sp_helpsubscription_properties N'B01', N'DBS', N'X'
but the result set is empty. When I run sp_helpsubscription_properties
I get the same empty result. But the subcription is anonymous and when I synchronize it using RMO - it works.
Could you please advice what could cause the problem?
Thank you.
Alexander.
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May 6, 2008
In remote processing mode, I am receiving the following error when I view a report in the browser: HTTP status 401: Unauthorized.
I have SQL server 2005, Microsoft Internet Information Services (IIS) 6.0 , Windows Server 2003 running on a virtual PC.
I am using Visual Studio 2008 to create a webpage with a reportviewer.
We are using Windows Integrated Security. How do I provide anonymous access to the report viewer?
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Aug 15, 2007
Hi,
I'm trying to force an anonymous subscription to re-intialize on it's next sync attempt. I can do this from the subscriber no problems, and from the publisher using 'Re-initalize All Subscriptions', but I can't seem to re-intialize only a single subscription from the publisher.
To do this I'm trying to execute sp_reinitmergesubscription using the subscriber details found in the sysmergesubscriptions table. This executes ok and when the subscriber starts to sync it does try to re-initialize starting with generating a new snapshot, but after processing for a while it throws the following error messages:
Error messages:
The merge process could not allocate memory for an operation; your system may be running low on virtual memory. Restart the Merge Agent. (Source: MSSQL_REPL, Error number: MSSQL_REPL-2147198720)
Get help: http://help/MSSQL_REPL-2147198720
An error occurred while reading the .bcp data file for the 'CDP_TableDates' article. If the .bcp file is corrupt, you must regenerate the snapshot before initializing the Subscriber. (Source: MSSQL_REPL, Error number: MSSQL_REPL-2147199428)
Get help: http://help/MSSQL_REPL-2147199428
The merge process was unable to deliver the snapshot to the Subscriber. If using Web synchronization, the merge process may have been unable to create or write to the message file. When troubleshooting, restart the synchronization with verbose history logging and specify an output file to which to write. (Source: MSSQL_REPL, Error number: MSSQL_REPL-2147201001)
There doesn't appear to be any shortage of memory on the server. There is no problem regenerating the snapshot from the publisher, and there's no problem with syncing through the web using delta syncs or re-initializing from the subscriber, so I can't see any obvious cause from those error messages.
I'm using SQL Server 2005 SP2 on the publisher, and SQL ServerCE 3.1 on the subscriber.
Any ideas or alternatives?
Cheers
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Aug 3, 2007
Hi there,
I created reports and deployed successfully. but one problem i am facing is when i am opening the browser to see reports, it is asking for credentials..
But i want to show these reports for anonymous users
Is there any way to show reports for anonymous users? If yes, what is the process. please refer me any articles.
please help me out.
thanks
praveen.
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Nov 12, 2007
Greetings,
I have a set of reports that should be accessible to any user on our network. Those reports are located in a single folder in SSRS. I would like to configure security to allow anyone to see the reports in that folder. Is there a way to do this?
I do have other folders where I am using security so I do not want to open up system-wide access to all reports.
Thank you for your ideas.
Rob
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Dec 21, 2005
Hi,
I read the BOL on how the publisher will had out identity ranges to subscribers, but it was not clear if this was also the case for anonymous subscribers. Will merge replication with identity columns work with anonymous subscribers that sync via HTTPS?
Thanks,
Darrell Young
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Oct 30, 2015
I am trying to execute oracle procedure (anonymous block) with input and output parameters from ms sql code and return 2 values back:a number and a string.I am using **EXEC() AT** to execute oracle code and return a string back to ms sql. It works fine when returning numbers, but if I add a string output parameter, I am receiving an error:Msg 0, Level 11, State 0, Line 0...A severe error occurred on the current command. The results, if any, should be discarded.
The server log has the following entry in exception.txt:
Exception 0xc0000005 EXCEPTION_ACCESS_VIOLATION reading address 00000005031C07E0 at 0x0000000070F9C183
There is also a SQLDump file generated:
* BEGIN STACK DUMP:
* 10/28/15 12:45:38 spid 63
* Exception Address = 000000005040C183 Module(MSVCR100+000000000003C183)
[code]....
It looks like the problem is in passing varchar2 from oracle into ms sql. I had logging code in oracle block, and it works fine. I have found a few examples of using **exec() at** but there is always only integer output passed back.
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Aug 8, 2006
Hi
We are using HTTPS merge replication
Our setup is as follows:
subscription.CreateSyncAgentByDefault = False -- I wrote a windows service to synchronise
subscription.UseWebSynchronization = True
subscription.InternetSecurityMode = AuthenticationMethod.BasicAuthentication
subscription.SubscriberType = MergeSubscriberType.Anonymous
Some of our subscribers have low-quality internet connections - how do I get the agent at the publisher/distributer use a slower profile - I've read How to: Work with Replication Agent Profiles (Replication Transact-SQL Programming)
but can't see where you specifiy an alternate agent profile
On the distributer / publisher (same machine) I go to replication monitor -> Warnings and Agents - I can only set the profile for the snapshot agent....
thanks
Bruce
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Jul 26, 2006
Dear all,
Basically I want to set chain up the rights so that the anonymous web user IUSR_ .. can execute the new .NET subs, functions etc in the assembly, just as the anonymous web user can execute Stored Procedures when granted. In this way, it should be possible to call the .NET assembly just as classic stored procedures from ASP/ASP.NET.
I have written a .NET function which I can successfully execute if I log on to the database as an administrator by sending this T-SQL query; it returns the result of a given string:
select dbo.CLRHTMLString('abc')
The scenario is now to try to grant access to this assembly for a different role (webuser), which the classic IUSR_MYSERVERNAME is a login of, so that I can call the .NET Assembly when I am authenticated as the anonymous web user (e.g. via ASP, etc.).
To test access, I created a login (webusertest) for a user (webusertest) in the same role (webuser) on the database. But when I use this login, which supposedly has the same rights as the IUSR_, execution right is denied:
EXECUTE permission denied on object 'CLRHTMLString', database 'adt_db', schema 'dbo'.
Note: The 'webuser' database role has Execute permission on the Assembly.
I have also tested this from my actual web page, with the following results:
(1) IUSR_MYSERVER member of db_owner role: Web page has right to call assembly.
(2) IUSR_MYSERVER not member of db_owner role: Web page does not have right to call assembly.
Further test results:
(3) Function can be called when making the user "webusertest" member of the "db_owner" role, which is too much rights to grant for the anonymous web user.
(4) When adding the user 'webusertest' to get 'Execute' permissions on the assembly, it does not get added. After clicking OK, there is no warning message, but when opening the Assembly Properties -> Permission dialog box the same time, the 'webusertest' user does not appear in the list.
Thankful for any advice on this matter.
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May 14, 2007
Dear SQL Server Reporting Services gurus,
Before I begin describing our problem, let me first start off with a description of our environment and current configuration.
Background/Configuration Specs
We have SQL Server Reporting Services running on a Microsoft Windows Server 2003, Standard Edition, Service Pack 1 server. It is configured so that the Reports and ReportServer virtual directories run under a sql server domain account.
The datasets for our reports are xml datasets returned from calling a web service on a second IIS server, Microsoft Windows Server 2003, Standard Edition, Service Pack 1. The web service runs under a service account and is not set to impersonate the user. The web service contacts a database located on the same server as reporting services to retrieve the data. So, it should receive the request, login to the database it is trying to access using the service account, and return the dataset.
We are programatically accessing reports via a client application, specifying the virtual directory via the reportserver url (e.g. http:\hostname\reportserver\virtual directory path\report name).
Kerberos is enabled on both the sql box and the iis box with constrained delegation allow the sql account access to the iis box.
Problem
When I try to browse to the report from Report Manager in IE, (http:\hostname\Reports\...etc) I am able to successfully view the report.
When I try to view the report in the client app, (http:\hostname\reportserver\...etc.) the report fails.
Looking at the iis logs, it appears that in the first case, the web service is receiving the request from the sql server domain account. In the second case, it appears that the web service is receiving the request from an anonymous login.
Questions
What exactly is the difference between rendering/viewing a report via ReportManager versus programatically via ReportServer?
Is there any configuration we need to be aware of when configuring ReportServer?
Any help you can provide would be very much appreciated.
Thanks,
prettybrneyes81
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Feb 22, 2008
We have an application that requires write settings to reportserver virtual directory for the IUSR account when anonymous is turned on during the install. Once the install is complete, we lock down the IUSR account so that it only has browse access to the virtual directory when enabling anonymous access.
We automate the uninstall and install of our daily builds and I'm trying to figure out if I can automated this process somehow either through command line utility or in vbs.
Your help is greatly appreciated...
Eric
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Apr 13, 2008
have SQL Server 2005 std edition SP1 installed on Windows 2003 Std edition .Configured Transactional (single Publisher and no clustered environment.)
Replication past two months working fine, Now
1.Distrib.exe application err is coming.
Due to which my job is failing (Distributor to Subscriber).
Iam attaching thw file.
Thanks
Sandeep
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Sep 11, 2007
Hey,
don't know if it's the right place for this question but i hope you help me.
I made an application with VS 2005 that connecting to sql server file db.mdf
Now i want this application work on another user computer, and of course i don't want to install vs 2005 there.
I did install .net framework, but what i need to do to make the database work? do i have to install sql server on his computer? or is there something more simple?
I know that if i was using access file than i need to install nothing else.
please help!
thanx.
max
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Apr 12, 2004
How do you make Asp.net use something other than the local ASPNET user for data access in sql server
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Jul 10, 2001
I need to copy 80 logins within the same SQL Server (7.0 SP1) from 80 "old" logins that I'll delete later.
I clearly need to maintain all the security options for the new logins.
Is there a way to do this, adding the logins with the new name and granting all security options? Is there a script that will do this task or can somebody help me in doing that?
Thank you.
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Dec 21, 2000
Hi,
I have two servers (server1, server2). I was trying to access the data from server1 to server2. I linked the servers and set up the option for data access.
when I run the following command from server1: sp_remoteoption 'server2', 'sa', 'sa', TRUSTED, TRUE
It gives me the following error. How to handle this.
Server: Msg 15185, Level 16, State 1, Line 0
There is no remote user 'sa' mapped to local user 'sa' from the remote server 'server2'.
I appreciate your help.
Thank you.
Eric s.
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Apr 13, 2000
I have a server that was recently upgraded from SQL 6.5 to 7.0 that contains almost 700 logins using standard security. Is there a limit to the number of logins that SQL will host? The logins/users have all been added using a GUI within an application and does not support NT authentication. Does this cause any known problems in SQL 7? When I right click on the database and go to properties / permissions MMC gets hung up. Also one of the systems analysts is convinced that SQL is dropping permissions (I disagree to this). Any one have any thoughts or experience with large numbers of logins / users?
Linda
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Jun 19, 2000
Does anyone know of any 3rd party software applications that will make users change their SQL
logins every 3 months?
Thanks,
Heather
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Mar 14, 2000
Hi!
How can I copy all logins from one SQL server 6.5 to
another one.
Thank you.
Anny.
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Sep 30, 2004
How can I determine which users are using the database??
Thanks
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Feb 28, 2008
I am new in sql and have problems about logins.
with sql 2005
1)I create a windows login in my home pc (win xp home sp2) and i can connect server with ssms this new user
but in my office (win xp pro sp2) create a windows login (it is a windows user also) and when try to connect with ssms take error 18456 (user name and pass is true!!!)
2)in my office pc i create a sql login which has no role. but this user can create users and dbs. but in my home pc, user has no role cant do thats...:eek:
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May 15, 2008
Hi everyone,I am new to this forum.I hope some body will help me in this,I am trying this for the past 6hrs.
on my server there are some hundreds of sql logins are there,I need to identify the logins which doesn't associated with either any databases or dbroles,server roles.Later i need to delete those logins.Can any body help me in this.
Thanks in advance.
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May 22, 2008
y r u doing like dis guys?
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