Good day. Am working in an environment that requires a security approach for checking users account (users in the active directory are changing data in the SQL SERVER).
I want to link/tie the users of an active directory to the SQL server account login account.
Am working with Powershell, i type Get-ADUser -filter *, it gives me the list of all listed users. If i log into my SQL SERVER with "winnie", how do i link/tie the active directory user with the sql server user called ""winnie"
You should never give users access to a database by single Windows User or by SQL User. The reason for this is because of the security later on. It will be better to manage and audit a group compared to giving out single users. If you have to restore that database to a new system. It will provide better security between a Production system and a Test system.
The only user who should have access to a database is the SA account. The others should be controlled by Security Groups.
How do you do this:
In SQL Server Management Studio, go to Object Explorer > (your server) > Security > Logins and right-click New Login:
Then in the dialog box that pops up, pick the types of objects you want to see (Groups is disabled by default - check it!) and pick the location where you want to look for your objects (e.g. use Entire Directory) and then find your AD group.
Any member of that AD group can now login to SQL Server and use your database.
Add the Read or Write permissions to the Security Group of choice. Limiting security issues it the future.
Best Practice:
Create Security Groups
Security Group naming convention exmaples:
SG_DBNAME_READ
SG_DBNAME_WRITE
SG_DBSERVER_ADMIN
Related
I'm trying to set up automated pipeline for database creation and need to open access for all users of some AD group. Last part is done through CREATE USER [Group Name] FROM EXTERNAL PROVIDER;
In order to execute this command, one needs to be logged in with AAD and the only Azure DevOps task used to execute SQL scripts (SqlAzureDacpacDeployment#1) has limited options to sign with AD. Currently it supports sign in with AD username/password and AD Integrated. User/password option is not possible as we use two factor authentication. And the latter requires self-hosted agent for pipeline which we do not have.
Additionally, there is one more sign in option that look promising (Service Principal: Uses the Authentication data from Azure Subscription), but after trying it failed miserably with error:
##[error]Principal 'web-API' could not be created. Only connections established with Active Directory accounts can create other Active Directory users.
Are the any other options we could use to create AD users in Azure SQL database? Any help would be appreciated.
How to solve above error ?
Please follow below steps:
Step 1: Go to Azure portal and find out your SQL server resource and you will find Active director left side under settings. Please click Set Admin. Now your Active Directory user account becomes Admin to the SQL server.
Step 2: Now use SSMS login with Active directory authentication if Multi-factor Authentication (MFA) is enabled. Otherwise, you can choose either 'Active directory - Integrated' or 'Active Directory - Password.'
Step 3: Create new logins which you can see in the below code:
CREATE USER [User1#Domain.com]
FROM EXTERNAL PROVIDER
WITH DEFAULT_SCHEMA = dbo;
add user to roles for the particular database
ALTER ROLE dbmanager ADD MEMBER [User1#Domain.com];
ALTER ROLE loginmanager ADD MEMBER [User1#Domain.com];
Note : If you add a domain user that is configured for MFA, then for that user to log on using SSMS they should select the SSMS authentication option Azure Active Directory - Universal with MFA.
Regarding SqlAzureDacpacDeployment#1 follow this Link.
For more detail information refer this:
https://learn.microsoft.com/en-us/azure/azure-sql/database/authentication-aad-overview?view=azuresq
https://learn.microsoft.com/en-us/sql/t-sql/statements/create-user-transact-sql?view=sql-server-ver15
https://learn.microsoft.com/en-us/azure/azure-sql/database/authentication-mfa-ssms-overview?view=azuresql
Want to identify the users/login with Administrative access on server to migrate them to new server's. I have tried Select * from $System.TMSCHEMA_ROLE_MEMBERSHIPS but these give information regarding the particular database i need more at server level.
Ssas users are done quite differently from normal databases. Ssas uses only the active directory account of the user trying to connect.
On server level the only security is done in the properties of the server, there you can select active directory users with administrative access to the server.
On database level you can create roles, give them access to (part of a) database and link active directory users/groups to them.
Using the analysisservices namespace of microsoft you already mentioned you can look trough every role in every database and note the permissions.
As far as I know you can't actually use this namespace to see all the administrators of the user. But unless you have an unreasonable amount of administrators the best solution might be to just open the server in sql server management studio, click on properties, security and write down all the AD members manually.
I hope this helps you and good luck!
I have users in an Active Directory, I created a GPO (Group Policy Object), which groups these users.
I do want to know is there a way to link the Active Directory Group Policy Object to SQL Server Management Objects (SMO) with PowerShell or any development tools.
The idea is this users within the Active Directory manipulates data within the database, and its causing a breach in database security.
I want to link the SA account of the SQL SERVER to the Active Directory user accounts.
I'm in the process of pulling a classic ASP app into Mvc2. I'll be deploying to an intranet and have been asked to enable support for Windows Authentication. The network I'll be deploying to has a few AD Domains and I'll only need to integrate with one in particular. Is it possible to use Windows Authentication and only allow authentication within a particular domain?
Along those same lines, it's not uncommon for a user to have an account in multiple domains (the account names themselves are typically different) - in the event a user logs in with an "unsupported" domain I'd like to kick them to a login form. Is this possible simply using Windows Auth or am I better off looking for an alternative?
Pro Tip:
Whatever you do don't implement Windows Authentication via IIS. Have a Forms Authentication page in your MVC app but use the LDAP authentication provider. This way you avoid the differences between how browsers implement Windows Authentication (only works well in IE and that's not a great reason).
The question "Is it possible to use Windows Authentication and only allow authentication within a particular domain?" has always has one and only one answer in my consulting experience: the answer is the permissions that you set for authenticated resources.
I've rarely found a deployment where there isn't some file, folder, server, COM+ object, SQL Role or database table that can't be "locked down" to only allow access by the subset of users you're targeting (e.g. "DOMAIN\Domain Users"):
Set permissions on the ASPX files (or the folder containing them, along with inheriting to the files) that are the "front door" (and optionally, all the others) so that they're only accessible to users in the "Domain Users" group for the allowed domain
restrict logon rights on the server that hosts the web site, so that only the Domain Users group have the appropriate rights - depending on the authentication provider used, this could be "allow logon locally" or "access this computer from the network"
set permissions at some layer of Component Services
restrict the SQL Server roles so that only "Domain Users" have the ability to read & execute the necessary database objects
On IBM DB2 v.9 windows, when someone connect to database by Server\Administrator user
DB2 database will automatically accept and grant all the permissions to this user?
But, in some case environment Administrator of server does not need to see every data in the database. So how to prevent Administrator use connect to database?
On 9.5 and older this would not be possible because the account under which your instance runs is SYSADM. Also Administrator can reset at least local account passwords and gain access to them, making changing the instance owner account useless.
However on 9.7 and onwards the instance owner will not have access to the data anymore. One option is to upgrade to 9.7. Furthermore you can set up an AD account for the connections your applications use. Local Administrator is not necessarily able to change into those credentials.
Still, the Administrator ultimately has access to the (usually unencrypted) database files. You can mostly improve the administrative aspect of security.
Umm... For many times I try to revoke with this command but when I connect to database by Administrator account DB2 will automatic grant permission to Administrator again.
I will try again for make sure.
By default, DB2 databases are created with CONNECT authority granted to public. If you want to restrict some users from connecting, you need to do
GRANT CONNECT ON DATABASE TO <user1>, <user2>, ...
Then revoke the CONNECT authority from PUBLIC
REVOKE CONNECT ON DATABASE FROM PUBLIC
I don't think it's possible under normal circumstances simply because Administrator is in the sysadm group.
Options I can think of (but haven't tried) include:
Setting the sysadm group to something else ("db2 update dbm cfg using sysadm_group blah"). Check the docs for caveats and gotchas when doing this, as I'm sure there are some.
Stop using OS authentication. Use a different security plugin (8.2 and higher only). This would move the authentication, and thus groups, to a new location (say an LDAP server). Then you just don't add Administrator to the new location, and especially don't add Administrator to the sysadm group again.
On Windows, the database manager configuration parameter SYSADM_GROUP controls who has SYSADMauthority at the instance level. When SYSADM_GROUP is blank (as is the default on Windows), then DB2 defaults to using the Administrators group on the local machine.
To fix this, you can create a new group in Windows and then modify the value of SYSADM_GROUP to use this new group. Make sure that the ID that the DB2 Service runs under belongs to this new group. After making this change, members of the Administrators group will no longer have SYSADM authority.
As Kevin Beck states, you may also want to look at restricting CONNECT authority on databases, too, because by default the CONNECT privilege is granted to PUBLIC.