After i logged in to SQL server using management studio i opened the log and i got a million messages showing
Login failed. The login is from an untrusted domain and cannot be used
with Windows authentication. [CLIENT: 222.186.61.5]
or
Login failed for user 'sa'. Reason: Password did not match that for
the login provided. [CLIENT: 222.186.61.5]
or
Login failed for user 'kisadmin'. Reason: Could not find a login
matching the name provided. [CLIENT: 222.186.61.5]
or
Login failed for user 'wwo'. Reason: Could not find a login matching
the name provided. [CLIENT: 104.217.216.169]
I have many more logs for many users and IP's which first appeared 10/6/2015 8:06:19 PM (and i have them everyday). Are these messages showing that i have been cyber attacked ?
What you see is a set of failed login tries, so, you can know for sure that someone tries to hack your database. Unfortunately, if there were successful attempts, then people might have read some data from your part. You need to kill all active connections and change the port you are using for your database.
Also, it would be nice if you would think about how people were able to try to log in to your database. Are you having by accident any public information about where your database server is (like error messages, for example)?
Related
We are using SQL server 2014, we update a password for a user login here
we click properties on a given login account and change the password here
we are certain we entering it correctly when we then try to login to the server using the login and password we get the following error
I don't know where else to look and what else to change -- when we do the same process on a different server it works without issue. But here its failing.
Where should we look and what else do we need to troubleshoot. Could it be we don't have access to certain databases, how do we fix this.
These are some of the errors coming through in the system logs
Message
Login failed for user ‘abc’. Reason: Failed to open the explicitly specified database ‘AMS'. [CLIENT---]
Message
Login failed for user 'abc’. Reason: Failed to open the database ‘Budget’ specified in the login properties. [CLIENT: ---]
Message
Login failed for user ‘abc’. Reason: Password did not match that for the login provided. [CLIENT: ----]
You must set a default database where the user AND relative login can access.
Logins are objects with a password
Users are objects, mapped to Logins, added to SQL Server entities.
Under Server -> Security -> Logins
Unser Database -> Security -> Users
Check also if the user is correctly mapped to the login.
To solve your problem you can set the master database as the default for your login.
You can find out more about the error in the SQLServer logs as described here https://learn.microsoft.com/en-us/sql/relational-databases/performance/view-the-sql-server-error-log-sql-server-management-studio?view=sql-server-ver16.
If you are looking for a quick fix to your problem, you can either:
assign more server roles to your login
or grant it an individual permission
use master;
grant CONNECT ANY DATABASE TO <login>;
Windows service with logon as domian\user1
Added login to instance with this user, mapped to databases needed.
Connection from service is using windows auth
When it runs, I get this error :
System.Data.Entity.Core.EntityException: The underlying provider failed on Open. ---> System.Data.SqlClient.SqlException: Login failed for user domian\user1
Ive tried several things such as net use with the credentials, I know the password is correct.
Checked the spelling, the login matches.
What else?
[ update ]
Looking at the sql log, I see the same thing
Reason: Could not find a login matching the name provided
Its as if this login doesnt exist on the instance
Good day,
I have a SQL Server job that keeps on failing. As per checking the error msg states that :
A new password should be set for this login without specifying the old
password.
I did some research and all the resources I've found suggest to reset the SQL server login password since it might be expired. I looked at the properties of the SQL Server Login pointed by the error but enforce password expiration is not activated. I would like to know what is the posible cause of this error. Hope you could help. Thanks.
I'm hosting my web application on an azure VM. I've created a new user for MSSQLSERVER which my application can use to access the remote SQL server on that machine (so i do not use the sa user in my application). I have no problems at all accessing it, but i accidentally opened the Event Viewer and I found that each time I log into my application I get tens of messages that say
"Login failed for user 'sa'. Reason: An error occurred while
evaluating the password. [client: ......]
I first thought that it was an intruder, but then I realized that this message appears once I login to my application.
Why could this message be shown ?
It is a state 1 issue, password validation gets done all-right, the problem is it is disabled for that user, in this case your MSSQLSERVER user or sa.
Try logging in with sa, and log out to refresh credentials . grant all permissions to new user that you created, and log in with your newly created user. This should solve the problem [make sure that error number is either of 18470 or 18456].
When I start deploying, I get this error:
Internal error: The operation terminated unsuccessfully.
Errors in the high-level relational engine. The database operation was cancelled because of an earlier failure.
Errors in the OLAP storage engine: An error occurred while the dimension, with the ID of 'Dim Customer', Name of 'Customer' was being processed.
OLE DB error: OLE DB or ODBC error: Login failed for user 'NT Service\MSSQLServerOLAPService'.; 28000; Cannot open database
"AdventureWorksDW2012" requested by the login. The login failed.; 42000.
What's wrong? and how can I fix it?
Had the same problem and Daniel's Meresa answer was helpful. The detailed resolution in may case was to run SQL Management Studio and in Object Explorer select Security - Logins - Right click - "New Login...". Fill in the following login name "NT Service\MSSQLServerOLAPService" and check sysadmin in Server Roles. It should be enough.
The error says, you need to add 'NT Service\MSSQLServerOLAPService' user to "AdventureWorksDW2012" database. You can do this in SSMS. Connect to your "AdventureWorksDW2012" database. Under Security-> User, add new user 'NT Service\MSSQLServerOLAPService' with db_datareader, db_owner(Optional) property [Membership, Owned_Schemas tab]
Have a look at the impersonation options on the data source you defined in analysis services that holds the source data of the customer dimension. There you can configure what credentials SSAS should use to connect to the data source.
MSDN entry on impersonation options
make sure you add the user 'NT Service\MSSQLServerOLAPService' into the database and assign the appropriate role read...also make sure to select use service account option under impersonation option in the cube source.